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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sysds.hops</a></div>
<h2 title="Class OptimizerUtils" class="title">Class OptimizerUtils</h2>
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<li><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a></li>
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<li>org.apache.sysds.hops.OptimizerUtils</li>
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<pre>public class <span class="typeNameLabel">OptimizerUtils</span>
extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
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<h3>Nested Class Summary</h3>
<table class="memberSummary">
<caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="OptimizerUtils.MemoryManager.html" title="enum in org.apache.sysds.hops">OptimizerUtils.MemoryManager</a></span></code></th>
<td class="colLast">
<div class="block">Memory managers (static partitioned, unified)</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="OptimizerUtils.OptimizationLevel.html" title="enum in org.apache.sysds.hops">OptimizerUtils.OptimizationLevel</a></span></code></th>
<td class="colLast">
<div class="block">Optimization Types for Compilation
O0 STATIC - Decisions for scheduling operations on CP/MR are based on
predefined set of rules, which check if the dimensions are below a
fixed/static threshold (OLD Method of choosing between CP and MR).</div>
</td>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_ALGEBRAIC_SIMPLIFICATION">ALLOW_ALGEBRAIC_SIMPLIFICATION</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_AUTO_VECTORIZATION">ALLOW_AUTO_VECTORIZATION</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_BINARY_UPDATE_IN_PLACE">ALLOW_BINARY_UPDATE_IN_PLACE</a></span></code></th>
<td class="colLast">
<div class="block">Enables update-in-place for binary operators if the first input
has no consumers.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_BRANCH_REMOVAL">ALLOW_BRANCH_REMOVAL</a></span></code></th>
<td class="colLast">
<div class="block">Enables if-else branch removal for constant predicates (original literals or
results of constant folding).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_CODE_MOTION">ALLOW_CODE_MOTION</a></span></code></th>
<td class="colLast">
<div class="block">Enables a specific rewrite for code motion, i.e., hoisting loop invariant code
out of while, for, and parfor loops.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_COMBINE_FILE_INPUT_FORMAT">ALLOW_COMBINE_FILE_INPUT_FORMAT</a></span></code></th>
<td class="colLast">
<div class="block">Enables the use of CombineSequenceFileInputFormat with splitsize = 2x hdfs blocksize,
if sort buffer size large enough and parallelism not hurt.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_COMMON_SUBEXPRESSION_ELIMINATION">ALLOW_COMMON_SUBEXPRESSION_ELIMINATION</a></span></code></th>
<td class="colLast">
<div class="block">Enables common subexpression elimination in dags.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_COMPRESSION_REWRITE">ALLOW_COMPRESSION_REWRITE</a></span></code></th>
<td class="colLast">
<div class="block">Boolean specifying if compression rewrites is allowed.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_CONSTANT_FOLDING">ALLOW_CONSTANT_FOLDING</a></span></code></th>
<td class="colLast">
<div class="block">Enables constant folding in dags.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_EVAL_FCALL_REPLACEMENT">ALLOW_EVAL_FCALL_REPLACEMENT</a></span></code></th>
<td class="colLast">
<div class="block">Replace eval second-order function calls with normal function call
if the function name is a known string (after constant propagation).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_FOR_LOOP_REMOVAL">ALLOW_FOR_LOOP_REMOVAL</a></span></code></th>
<td class="colLast">
<div class="block">Enables the removal of (par)for-loops when from, to, and increment are constants
(original literals or results of constant folding) and lead to an empty sequence,
i.e., (par)for-loops without a single iteration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_INTER_PROCEDURAL_ANALYSIS">ALLOW_INTER_PROCEDURAL_ANALYSIS</a></span></code></th>
<td class="colLast">
<div class="block">Enables interprocedural analysis between main script and functions as well as functions
and other functions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_LOOP_UPDATE_IN_PLACE">ALLOW_LOOP_UPDATE_IN_PLACE</a></span></code></th>
<td class="colLast">
<div class="block">Enables a specific rewrite that enables update in place for loop variables that are
only read/updated via cp leftindexing.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_OPERATOR_FUSION">ALLOW_OPERATOR_FUSION</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_RAND_JOB_RECOMPILE">ALLOW_RAND_JOB_RECOMPILE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_RUNTIME_PIGGYBACKING">ALLOW_RUNTIME_PIGGYBACKING</a></span></code></th>
<td class="colLast">
<div class="block">Enables parfor runtime piggybacking of MR jobs into the packed jobs for
scan sharing.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_SCRIPT_LEVEL_COMPRESS_COMMAND">ALLOW_SCRIPT_LEVEL_COMPRESS_COMMAND</a></span></code></th>
<td class="colLast">
<div class="block">This variable allows for insertion of Compress and decompress in the dml script from the user.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_SCRIPT_LEVEL_LOCAL_COMMAND">ALLOW_SCRIPT_LEVEL_LOCAL_COMMAND</a></span></code></th>
<td class="colLast">
<div class="block">This variable allows for use of explicit local command, that forces a spark block to be executed and returned as a local block.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_SIZE_EXPRESSION_EVALUATION">ALLOW_SIZE_EXPRESSION_EVALUATION</a></span></code></th>
<td class="colLast">
<div class="block">Enables simple expression evaluation for datagen parameters 'rows', 'cols'.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_SPLIT_HOP_DAGS">ALLOW_SPLIT_HOP_DAGS</a></span></code></th>
<td class="colLast">
<div class="block">Enables a specific hop dag rewrite that splits hop dags after csv persistent reads with
unknown size in order to allow for recompile.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_SUM_PRODUCT_REWRITES">ALLOW_SUM_PRODUCT_REWRITES</a></span></code></th>
<td class="colLast">
<div class="block">Enables sum product rewrites such as mapmultchains.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_TRANSITIVE_SPARK_EXEC_TYPE">ALLOW_TRANSITIVE_SPARK_EXEC_TYPE</a></span></code></th>
<td class="colLast">
<div class="block">Enable transitive spark execution type selection.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_UNARY_UPDATE_IN_PLACE">ALLOW_UNARY_UPDATE_IN_PLACE</a></span></code></th>
<td class="colLast">
<div class="block">Enables the update-in-place for all unary operators with a single
consumer.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_WORSTCASE_SIZE_EXPRESSION_EVALUATION">ALLOW_WORSTCASE_SIZE_EXPRESSION_EVALUATION</a></span></code></th>
<td class="colLast">
<div class="block">Enables simple expression evaluation for datagen parameters 'rows', 'cols'.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ASYNC_BROADCAST_SPARK">ASYNC_BROADCAST_SPARK</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ASYNC_CHECKPOINT_SPARK">ASYNC_CHECKPOINT_SPARK</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ASYNC_PREFETCH_SPARK">ASYNC_PREFETCH_SPARK</a></span></code></th>
<td class="colLast">
<div class="block">Enable prefetch and broadcast.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BOOLEAN_SIZE">BOOLEAN_SIZE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BUFFER_POOL_SIZE">BUFFER_POOL_SIZE</a></span></code></th>
<td class="colLast">
<div class="block">Buffer pool size in bytes</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CHAR_SIZE">CHAR_SIZE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_BLOCKSIZE">DEFAULT_BLOCKSIZE</a></span></code></th>
<td class="colLast">
<div class="block">Default blocksize if unspecified or for testing purposes</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_FRAME_BLOCKSIZE">DEFAULT_FRAME_BLOCKSIZE</a></span></code></th>
<td class="colLast">
<div class="block">Default frame blocksize</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_MEM_UTIL_FACTOR">DEFAULT_MEM_UTIL_FACTOR</a></span></code></th>
<td class="colLast">
<div class="block">Default buffer pool sizes for static (15%) and unified (85%) memory</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="OptimizerUtils.OptimizationLevel.html" title="enum in org.apache.sysds.hops">OptimizerUtils.OptimizationLevel</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_OPTLEVEL">DEFAULT_OPTLEVEL</a></span></code></th>
<td class="colLast">
<div class="block">Default optimization level if unspecified</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_SIZE">DEFAULT_SIZE</a></span></code></th>
<td class="colLast">
<div class="block">Default memory size, which is used if the actual estimate can not be computed
e.g., when input/output dimensions are unknown.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_UMM_UTIL_FACTOR">DEFAULT_UMM_UTIL_FACTOR</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DOUBLE_SIZE">DOUBLE_SIZE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#FEDERATED_COMPILATION">FEDERATED_COMPILATION</a></span></code></th>
<td class="colLast">
<div class="block">Compile federated instructions based on input federation state and privacy constraints.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html?is-external=true" title="class or interface in java.util" class="externalLink">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>,&#8203;<a href="../runtime/instructions/fed/FEDInstruction.FederatedOutput.html" title="enum in org.apache.sysds.runtime.instructions.fed">FEDInstruction.FederatedOutput</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#FEDERATED_SPECS">FEDERATED_SPECS</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INT_SIZE">INT_SIZE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INVALID_SIZE">INVALID_SIZE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#IPA_NUM_REPETITIONS">IPA_NUM_REPETITIONS</a></span></code></th>
<td class="colLast">
<div class="block">Number of inter-procedural analysis (IPA) repetitions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MAX_NNZ_CP_SPARSE">MAX_NNZ_CP_SPARSE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MAX_NUMCELLS_CP_DENSE">MAX_NUMCELLS_CP_DENSE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MAX_PARALLELIZE_ORDER">MAX_PARALLELIZE_ORDER</a></span></code></th>
<td class="colLast">
<div class="block">Heuristic-based instruction ordering to maximize inter-operator parallelism.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MEM_UTIL_FACTOR">MEM_UTIL_FACTOR</a></span></code></th>
<td class="colLast">
<div class="block">Utilization factor used in deciding whether an operation to be scheduled on CP or MR.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="OptimizerUtils.MemoryManager.html" title="enum in org.apache.sysds.hops">OptimizerUtils.MemoryManager</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MEMORY_MANAGER">MEMORY_MANAGER</a></span></code></th>
<td class="colLast">
<div class="block">Indicate the current memory manager in effect</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#PARALLEL_CP_READ_PARALLELISM_MULTIPLIER">PARALLEL_CP_READ_PARALLELISM_MULTIPLIER</a></span></code></th>
<td class="colLast">
<div class="block">Specifies a multiplier computing the degree of parallelism of parallel
text read/write out of the available degree of parallelism.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#PARALLEL_CP_WRITE_PARALLELISM_MULTIPLIER">PARALLEL_CP_WRITE_PARALLELISM_MULTIPLIER</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SAFE_REP_CHANGE_THRES">SAFE_REP_CHANGE_THRES</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
</table>
</li>
</ul>
</section>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<section>
<ul class="blockList">
<li class="blockList"><a id="constructor.summary">
<!-- -->
</a>
<h3>Constructor Summary</h3>
<table class="memberSummary">
<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">OptimizerUtils</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</table>
</li>
</ul>
</section>
<!-- ========== METHOD SUMMARY =========== -->
<section>
<ul class="blockList">
<li class="blockList"><a id="method.summary">
<!-- -->
</a>
<h3>Method Summary</h3>
<table class="memberSummary">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#allowsToFilterEmptyBlockOutputs(org.apache.sysds.hops.Hop)">allowsToFilterEmptyBlockOutputs</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;hop)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSparkBroadcastMemoryBudget(double)">checkSparkBroadcastMemoryBudget</a></span>&#8203;(double&nbsp;size)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSparkBroadcastMemoryBudget(long,long,long,long)">checkSparkBroadcastMemoryBudget</a></span>&#8203;(long&nbsp;rlen,
long&nbsp;clen,
long&nbsp;blen,
long&nbsp;nnz)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSparkCollectMemoryBudget(org.apache.sysds.runtime.meta.DataCharacteristics,long)">checkSparkCollectMemoryBudget</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
long&nbsp;memPinned)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSparkCollectMemoryBudget(org.apache.sysds.runtime.meta.DataCharacteristics,long,boolean)">checkSparkCollectMemoryBudget</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
long&nbsp;memPinned,
boolean&nbsp;checkBP)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSparseBlockCSRConversion(org.apache.sysds.runtime.meta.DataCharacteristics)">checkSparseBlockCSRConversion</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dcIn)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="../conf/CompilerConfig.html" title="class in org.apache.sysds.conf">CompilerConfig</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constructCompilerConfig(org.apache.sysds.conf.CompilerConfig,org.apache.sysds.conf.DMLConfig)">constructCompilerConfig</a></span>&#8203;(<a href="../conf/CompilerConfig.html" title="class in org.apache.sysds.conf">CompilerConfig</a>&nbsp;cconf,
<a href="../conf/DMLConfig.html" title="class in org.apache.sysds.conf">DMLConfig</a>&nbsp;dmlconf)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="../conf/CompilerConfig.html" title="class in org.apache.sysds.conf">CompilerConfig</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constructCompilerConfig(org.apache.sysds.conf.DMLConfig)">constructCompilerConfig</a></span>&#8203;(<a href="../conf/DMLConfig.html" title="class in org.apache.sysds.conf">DMLConfig</a>&nbsp;dmlconf)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#disableUMM()">disableUMM</a></span>()</code></th>
<td class="colLast">
<div class="block">Disable unified memory manager and fallback to static partitioning.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#enableUMM()">enableUMM</a></span>()</code></th>
<td class="colLast">
<div class="block">Enable unified memory manager and initialize with the default size (85%).</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(long,long,long,double)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(long&nbsp;rlen,
long&nbsp;clen,
long&nbsp;blen,
double&nbsp;sp)</code></th>
<td class="colLast">
<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
matrix with dimensions=(nrows,ncols) and sparsity=sp.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(long,long,long,double,boolean)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(long&nbsp;rlen,
long&nbsp;clen,
long&nbsp;blen,
double&nbsp;sp,
boolean&nbsp;outputEmptyBlocks)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(long,long,long,long)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(long&nbsp;rlen,
long&nbsp;clen,
long&nbsp;blen,
long&nbsp;nnz)</code></th>
<td class="colLast">
<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
matrix with dimensions=(nrows,ncols) and number of non-zeros nnz.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(long,long,long,long,boolean)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(long&nbsp;rlen,
long&nbsp;clen,
long&nbsp;blen,
long&nbsp;nnz,
boolean&nbsp;outputEmptyBlocks)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(org.apache.sysds.hops.Hop)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;hop)</code></th>
<td class="colLast">
<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
matrix with the hops dimensions and number of non-zeros nnz.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(org.apache.sysds.runtime.meta.DataCharacteristics)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc)</code></th>
<td class="colLast">
<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
matrix with the given matrix characteristics</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimatePartitionedSizeExactSparsity(org.apache.sysds.runtime.meta.DataCharacteristics,boolean)">estimatePartitionedSizeExactSparsity</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
boolean&nbsp;outputEmptyBlocks)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSize(long,long)">estimateSize</a></span>&#8203;(long&nbsp;nrows,
long&nbsp;ncols)</code></th>
<td class="colLast">
<div class="block">Similar to estimate() except that it provides worst-case estimates
when the optimization type is ROBUST.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSize(org.apache.sysds.runtime.meta.DataCharacteristics)">estimateSize</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSizeEmptyBlock(long,long)">estimateSizeEmptyBlock</a></span>&#8203;(long&nbsp;nrows,
long&nbsp;ncols)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSizeExactSparsity(long,long,double)">estimateSizeExactSparsity</a></span>&#8203;(long&nbsp;nrows,
long&nbsp;ncols,
double&nbsp;sp)</code></th>
<td class="colLast">
<div class="block">Estimates the footprint (in bytes) for an in-memory representation of a
matrix with dimensions=(nrows,ncols) and sparsity=sp.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSizeExactSparsity(long,long,long)">estimateSizeExactSparsity</a></span>&#8203;(long&nbsp;nrows,
long&nbsp;ncols,
long&nbsp;nnz)</code></th>
<td class="colLast">
<div class="block">Estimates the footprint (in bytes) for an in-memory representation of a
matrix with dimensions=(nrows,ncols) and and number of non-zeros nnz.</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSizeExactSparsity(org.apache.sysds.runtime.meta.DataCharacteristics)">estimateSizeExactSparsity</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSizeTextOutput(int%5B%5D,long,org.apache.sysds.common.Types.FileFormat)">estimateSizeTextOutput</a></span>&#8203;(int[]&nbsp;dims,
long&nbsp;nnz,
<a href="../common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateSizeTextOutput(long,long,long,org.apache.sysds.common.Types.FileFormat)">estimateSizeTextOutput</a></span>&#8203;(long&nbsp;rows,
long&nbsp;cols,
long&nbsp;nnz,
<a href="../common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#exceedsCachingThreshold(long,double)">exceedsCachingThreshold</a></span>&#8203;(long&nbsp;dim2,
double&nbsp;outMem)</code></th>
<td class="colLast">
<div class="block">Indicates if the given matrix characteristics exceed the threshold for
caching, i.e., the matrix should be cached.</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBinaryOpSparsity(double,double,org.apache.sysds.common.Types.OpOp2,boolean)">getBinaryOpSparsity</a></span>&#8203;(double&nbsp;sp1,
double&nbsp;sp2,
<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
boolean&nbsp;worstcase)</code></th>
<td class="colLast">
<div class="block">Estimates the result sparsity for matrix-matrix binary operations (A op B)</div>
</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBinaryOpSparsityConditionalSparseSafe(double,org.apache.sysds.common.Types.OpOp2,org.apache.sysds.hops.LiteralOp)">getBinaryOpSparsityConditionalSparseSafe</a></span>&#8203;(double&nbsp;sp1,
<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
<a href="LiteralOp.html" title="class in org.apache.sysds.hops">LiteralOp</a>&nbsp;lit)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBufferPoolLimit()">getBufferPoolLimit</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns buffer pool size as set in the config</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getConstrainedNumThreads(int)">getConstrainedNumThreads</a></span>&#8203;(int&nbsp;maxNumThreads)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>static <a href="../common/Types.ExecMode.html" title="enum in org.apache.sysds.common">Types.ExecMode</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDefaultExecutionMode()">getDefaultExecutionMode</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDefaultFrameSize()">getDefaultFrameSize</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>static org.apache.log4j.Level</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDefaultLogLevel()">getDefaultLogLevel</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDefaultSize()">getDefaultSize</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i34" class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLeftIndexingSparsity(long,long,long,long,long,long)">getLeftIndexingSparsity</a></span>&#8203;(long&nbsp;rlen1,
long&nbsp;clen1,
long&nbsp;nnz1,
long&nbsp;rlen2,
long&nbsp;clen2,
long&nbsp;nnz2)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLocalMemBudget()">getLocalMemBudget</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns memory budget (according to util factor) in bytes</div>
</td>
</tr>
<tr id="i36" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMatMultNnz(double,double,long,long,long,boolean)">getMatMultNnz</a></span>&#8203;(double&nbsp;sp1,
double&nbsp;sp2,
long&nbsp;m,
long&nbsp;k,
long&nbsp;n,
boolean&nbsp;worstcase)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i37" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMatMultSparsity(double,double,long,long,long,boolean)">getMatMultSparsity</a></span>&#8203;(double&nbsp;sp1,
double&nbsp;sp2,
long&nbsp;m,
long&nbsp;k,
long&nbsp;n,
boolean&nbsp;worstcase)</code></th>
<td class="colLast">
<div class="block">Estimates the result sparsity for Matrix Multiplication A %*% B.</div>
</td>
</tr>
<tr id="i38" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNnz(long,long,double)">getNnz</a></span>&#8203;(long&nbsp;dim1,
long&nbsp;dim2,
double&nbsp;sp)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i39" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumIterations(org.apache.sysds.parser.ForStatementBlock,long)">getNumIterations</a></span>&#8203;(<a href="../parser/ForStatementBlock.html" title="class in org.apache.sysds.parser">ForStatementBlock</a>&nbsp;fsb,
long&nbsp;defaultValue)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i40" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumIterations(org.apache.sysds.runtime.controlprogram.ForProgramBlock,long)">getNumIterations</a></span>&#8203;(<a href="../runtime/controlprogram/ForProgramBlock.html" title="class in org.apache.sysds.runtime.controlprogram">ForProgramBlock</a>&nbsp;fpb,
long&nbsp;defaultValue)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumIterations(org.apache.sysds.runtime.controlprogram.ForProgramBlock,org.apache.sysds.runtime.controlprogram.LocalVariableMap,long)">getNumIterations</a></span>&#8203;(<a href="../runtime/controlprogram/ForProgramBlock.html" title="class in org.apache.sysds.runtime.controlprogram">ForProgramBlock</a>&nbsp;fpb,
<a href="../runtime/controlprogram/LocalVariableMap.html" title="class in org.apache.sysds.runtime.controlprogram">LocalVariableMap</a>&nbsp;vars,
long&nbsp;defaultValue)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i42" class="altColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumMappers()">getNumMappers</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i43" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNumReducers(boolean)">getNumReducers</a></span>&#8203;(boolean&nbsp;configOnly)</code></th>
<td class="colLast">
<div class="block">Returns the number of reducers that potentially run in parallel.</div>
</td>
</tr>
<tr id="i44" class="altColor">
<td class="colFirst"><code>static <a href="OptimizerUtils.OptimizationLevel.html" title="enum in org.apache.sysds.hops">OptimizerUtils.OptimizationLevel</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOptLevel()">getOptLevel</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i45" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOuterNonZeros(long,long,long,long,org.apache.sysds.common.Types.OpOp2)">getOuterNonZeros</a></span>&#8203;(long&nbsp;n1,
long&nbsp;n2,
long&nbsp;nnz1,
long&nbsp;nnz2,
<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i46" class="altColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParallelBinaryReadParallelism()">getParallelBinaryReadParallelism</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i47" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParallelBinaryWriteParallelism()">getParallelBinaryWriteParallelism</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i48" class="altColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParallelTextReadParallelism()">getParallelTextReadParallelism</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the degree of parallelism used for parallel text read.</div>
</td>
</tr>
<tr id="i49" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParallelTextWriteParallelism()">getParallelTextWriteParallelism</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the degree of parallelism used for parallel text write.</div>
</td>
</tr>
<tr id="i50" class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSparsity(long%5B%5D,long)">getSparsity</a></span>&#8203;(long[]&nbsp;dims,
long&nbsp;nnz)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i51" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSparsity(long,long,long)">getSparsity</a></span>&#8203;(long&nbsp;dim1,
long&nbsp;dim2,
long&nbsp;nnz)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i52" class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSparsity(org.apache.sysds.hops.Hop)">getSparsity</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;hop)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i53" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSparsity(org.apache.sysds.runtime.meta.DataCharacteristics)">getSparsity</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i54" class="altColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTokenizeNumThreads()">getTokenizeNumThreads</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i55" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTotalMemEstimate(org.apache.sysds.hops.Hop%5B%5D,org.apache.sysds.hops.Hop)">getTotalMemEstimate</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>[]&nbsp;in,
<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;out)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i56" class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTotalMemEstimate(org.apache.sysds.hops.Hop%5B%5D,org.apache.sysds.hops.Hop,boolean)">getTotalMemEstimate</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>[]&nbsp;in,
<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;out,
boolean&nbsp;denseOut)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i57" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTransformNumThreads()">getTransformNumThreads</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i58" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getUniqueTempFileName()">getUniqueTempFileName</a></span>()</code></th>
<td class="colLast">
<div class="block">Wrapper over internal filename construction for external usage.</div>
</td>
</tr>
<tr id="i59" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isBinaryOpConditionalSparseSafe(org.apache.sysds.common.Types.OpOp2)">isBinaryOpConditionalSparseSafe</a></span>&#8203;(<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op)</code></th>
<td class="colLast">
<div class="block">Determines if a given binary op is potentially conditional sparse safe.</div>
</td>
</tr>
<tr id="i60" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isBinaryOpConditionalSparseSafeExact(org.apache.sysds.common.Types.OpOp2,org.apache.sysds.hops.LiteralOp)">isBinaryOpConditionalSparseSafeExact</a></span>&#8203;(<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
<a href="LiteralOp.html" title="class in org.apache.sysds.hops">LiteralOp</a>&nbsp;lit)</code></th>
<td class="colLast">
<div class="block">Determines if a given binary op with scalar literal guarantee an output
sparsity which is exactly the same as its matrix input sparsity.</div>
</td>
</tr>
<tr id="i61" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isBinaryOpSparsityConditionalSparseSafe(org.apache.sysds.common.Types.OpOp2,org.apache.sysds.hops.LiteralOp)">isBinaryOpSparsityConditionalSparseSafe</a></span>&#8203;(<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
<a href="LiteralOp.html" title="class in org.apache.sysds.hops">LiteralOp</a>&nbsp;lit)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i62" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isHybridExecutionMode()">isHybridExecutionMode</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i63" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isIndexingRangeBlockAligned(long,long,long,long,long)">isIndexingRangeBlockAligned</a></span>&#8203;(long&nbsp;rl,
long&nbsp;ru,
long&nbsp;cl,
long&nbsp;cu,
long&nbsp;blen)</code></th>
<td class="colLast">
<div class="block">Indicates if the given indexing range is block aligned, i.e., it does not require
global aggregation of blocks.</div>
</td>
</tr>
<tr id="i64" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isIndexingRangeBlockAligned(org.apache.sysds.runtime.util.IndexRange,org.apache.sysds.runtime.meta.DataCharacteristics)">isIndexingRangeBlockAligned</a></span>&#8203;(<a href="../runtime/util/IndexRange.html" title="class in org.apache.sysds.runtime.util">IndexRange</a>&nbsp;ixrange,
<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc)</code></th>
<td class="colLast">
<div class="block">Indicates if the given indexing range is block aligned, i.e., it does not require
global aggregation of blocks.</div>
</td>
</tr>
<tr id="i65" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isMaxLocalParallelism(int)">isMaxLocalParallelism</a></span>&#8203;(int&nbsp;k)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i66" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isMemoryBasedOptLevel()">isMemoryBasedOptLevel</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i67" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isOptLevel(org.apache.sysds.hops.OptimizerUtils.OptimizationLevel)">isOptLevel</a></span>&#8203;(<a href="OptimizerUtils.OptimizationLevel.html" title="enum in org.apache.sysds.hops">OptimizerUtils.OptimizationLevel</a>&nbsp;level)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i68" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isSparkExecutionMode()">isSparkExecutionMode</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i69" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isTopLevelParFor()">isTopLevelParFor</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i70" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isUMMEnabled()">isUMMEnabled</a></span>()</code></th>
<td class="colLast">
<div class="block">Check if unified memory manager is in effect</div>
</td>
</tr>
<tr id="i71" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidCPDimensions(long,long)">isValidCPDimensions</a></span>&#8203;(long&nbsp;rows,
long&nbsp;cols)</code></th>
<td class="colLast">
<div class="block">Returns false if dimensions known to be invalid; other true</div>
</td>
</tr>
<tr id="i72" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidCPDimensions(org.apache.sysds.common.Types.ValueType%5B%5D,java.lang.String%5B%5D)">isValidCPDimensions</a></span>&#8203;(<a href="../common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>[]&nbsp;names)</code></th>
<td class="colLast">
<div class="block">Returns false if schema and names are not properly specified; other true
Length to be &gt; 0, and length of both to be equal.</div>
</td>
</tr>
<tr id="i73" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidCPDimensions(org.apache.sysds.runtime.meta.DataCharacteristics)">isValidCPDimensions</a></span>&#8203;(<a href="../runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i74" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidCPMatrixSize(long,long,double)">isValidCPMatrixSize</a></span>&#8203;(long&nbsp;rows,
long&nbsp;cols,
double&nbsp;sparsity)</code></th>
<td class="colLast">
<div class="block">Determines if valid matrix size to be represented in CP data structures.</div>
</td>
</tr>
<tr id="i75" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#resetDefaultSize()">resetDefaultSize</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i76" class="altColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#resetStaticCompilerFlags()">resetStaticCompilerFlags</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i77" class="rowColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rEvalSimpleDoubleExpression(org.apache.sysds.hops.Hop,java.util.HashMap)">rEvalSimpleDoubleExpression</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html?is-external=true" title="class or interface in java.util" class="externalLink">HashMap</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>,&#8203;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&gt;&nbsp;valMemo)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i78" class="altColor">
<td class="colFirst"><code>static double</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rEvalSimpleDoubleExpression(org.apache.sysds.hops.Hop,java.util.HashMap,org.apache.sysds.runtime.controlprogram.LocalVariableMap)">rEvalSimpleDoubleExpression</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html?is-external=true" title="class or interface in java.util" class="externalLink">HashMap</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>,&#8203;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&gt;&nbsp;valMemo,
<a href="../runtime/controlprogram/LocalVariableMap.html" title="class in org.apache.sysds.runtime.controlprogram">LocalVariableMap</a>&nbsp;vars)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i79" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rEvalSimpleLongExpression(org.apache.sysds.hops.Hop,java.util.HashMap)">rEvalSimpleLongExpression</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html?is-external=true" title="class or interface in java.util" class="externalLink">HashMap</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>,&#8203;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>&gt;&nbsp;valMemo)</code></th>
<td class="colLast">
<div class="block">Function to evaluate simple size expressions over literals and now/ncol.</div>
</td>
</tr>
<tr id="i80" class="altColor">
<td class="colFirst"><code>static long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rEvalSimpleLongExpression(org.apache.sysds.hops.Hop,java.util.HashMap,org.apache.sysds.runtime.controlprogram.LocalVariableMap)">rEvalSimpleLongExpression</a></span>&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html?is-external=true" title="class or interface in java.util" class="externalLink">HashMap</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>,&#8203;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>&gt;&nbsp;valMemo,
<a href="../runtime/controlprogram/LocalVariableMap.html" title="class in org.apache.sysds.runtime.controlprogram">LocalVariableMap</a>&nbsp;vars)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i81" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toMB(double)">toMB</a></span>&#8203;(double&nbsp;inB)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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</section>
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<h4>MEM_UTIL_FACTOR</h4>
<pre>public static&nbsp;double MEM_UTIL_FACTOR</pre>
<div class="block">Utilization factor used in deciding whether an operation to be scheduled on CP or MR.
NOTE: it is important that MEM_UTIL_FACTOR+CacheableData.CACHING_BUFFER_SIZE &lt; 1.0</div>
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<h4>DEFAULT_MEM_UTIL_FACTOR</h4>
<pre>public static&nbsp;double DEFAULT_MEM_UTIL_FACTOR</pre>
<div class="block">Default buffer pool sizes for static (15%) and unified (85%) memory</div>
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<h4>DEFAULT_UMM_UTIL_FACTOR</h4>
<pre>public static&nbsp;double DEFAULT_UMM_UTIL_FACTOR</pre>
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<div class="block">Indicate the current memory manager in effect</div>
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<pre>public static final&nbsp;int DEFAULT_BLOCKSIZE</pre>
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<pre>public static&nbsp;double DEFAULT_SIZE</pre>
<div class="block">Default memory size, which is used if the actual estimate can not be computed
e.g., when input/output dimensions are unknown. The default is set to a large
value so that operations are scheduled on MR while avoiding overflows as well.</div>
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<pre>public static&nbsp;boolean ALLOW_COMMON_SUBEXPRESSION_ELIMINATION</pre>
<div class="block">Enables common subexpression elimination in dags. There is however, a potential tradeoff
between computation redundancy and data transfer between MR jobs. Since, we do not reason
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<pre>public static&nbsp;boolean ALLOW_CONSTANT_FOLDING</pre>
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operations and literals and replaces the hop sub-DAG with a new literal operator.</div>
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<pre>public static&nbsp;boolean ALLOW_BRANCH_REMOVAL</pre>
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<pre>public static&nbsp;int IPA_NUM_REPETITIONS</pre>
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<pre>public static&nbsp;boolean ALLOW_SPLIT_HOP_DAGS</pre>
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<pre>public static&nbsp;boolean ALLOW_UNARY_UPDATE_IN_PLACE</pre>
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<pre>public static&nbsp;boolean ALLOW_BINARY_UPDATE_IN_PLACE</pre>
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<pre>public static&nbsp;boolean FEDERATED_COMPILATION</pre>
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<div class="block">Specifies a multiplier computing the degree of parallelism of parallel
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<pre>public static&nbsp;boolean ALLOW_COMPRESSION_REWRITE</pre>
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<pre>public static&nbsp;boolean MAX_PARALLELIZE_ORDER</pre>
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<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>local memory budget</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>buffer pool size in bytes</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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long&nbsp;blen,
long&nbsp;nnz)</pre>
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long&nbsp;memPinned,
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This is either just the configured value (SystemDS config) or
the minimum of configured value and available reduce slots.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>configOnly</code> - true if configured value</dd>
<dt><span class="returnLabel">Returns:</span></dt>
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This is computed as the number of virtual cores scales by the
PARALLEL_READ_PARALLELISM_MULTIPLIER. If PARALLEL_READ_TEXTFORMATS
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<dt><span class="returnLabel">Returns:</span></dt>
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This is computed as the number of virtual cores scales by the
PARALLEL_WRITE_PARALLELISM_MULTIPLIER. If PARALLEL_WRITE_TEXTFORMATS
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<div class="block">Estimates the footprint (in bytes) for an in-memory representation of a
matrix with dimensions=(nrows,ncols) and and number of non-zeros nnz.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>nrows</code> - number of rows</dd>
<dd><code>ncols</code> - number of cols</dd>
<dd><code>nnz</code> - number of non-zeros</dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Estimates the footprint (in bytes) for an in-memory representation of a
matrix with dimensions=(nrows,ncols) and sparsity=sp.
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known i.e., <code>sp</code> is guaranteed to give worst-case estimate
(e.g., Rand with a fixed sparsity). In all other cases, estimateSize()
must be used so that worst-case estimates are computed, whenever
applicable.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>nrows</code> - number of rows</dd>
<dd><code>ncols</code> - number of cols</dd>
<dd><code>sp</code> - sparsity</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>memory footprint</dd>
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<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dc</code> - matrix characteristics</dd>
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<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rlen</code> - number of rows</dd>
<dd><code>clen</code> - number of cols</dd>
<dd><code>blen</code> - rows/cols per block</dd>
<dd><code>nnz</code> - number of non-zeros</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>memory estimate</dd>
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<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>hop</code> - The hop to extract dimensions and nnz from</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the memory estimate</dd>
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<div class="block">Estimates the footprint (in bytes) for a partitioned in-memory representation of a
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<dd><code>clen</code> - number of cols</dd>
<dd><code>blen</code> - rows/cols per block</dd>
<dd><code>sp</code> - sparsity</dd>
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>nrows</code> - number of rows</dd>
<dd><code>ncols</code> - number of cols</dd>
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ixrange</code> - indexing range</dd>
<dd><code>mc</code> - matrix characteristics</dd>
<dt><span class="returnLabel">Returns:</span></dt>
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long&nbsp;cu,
long&nbsp;blen)</pre>
<div class="block">Indicates if the given indexing range is block aligned, i.e., it does not require
global aggregation of blocks.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rl</code> - rows lower</dd>
<dd><code>ru</code> - rows upper</dd>
<dd><code>cl</code> - cols lower</dd>
<dd><code>cu</code> - cols upper</dd>
<dd><code>blen</code> - rows/cols per block</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if indexing range is block aligned</dd>
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
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<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Returns false if schema and names are not properly specified; other true
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schema</code> - the schema</dd>
<dd><code>names</code> - the names</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>false if schema and names are not properly specified</dd>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;isValidCPMatrixSize&#8203;(long&nbsp;rows,
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double&nbsp;sparsity)</pre>
<div class="block">Determines if valid matrix size to be represented in CP data structures. Note that
sparsity needs to be specified as rows*cols if unknown.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rows</code> - number of rows</dd>
<dd><code>cols</code> - number of cols</dd>
<dd><code>sparsity</code> - the sparsity</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if valid matrix size</dd>
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double&nbsp;outMem)</pre>
<div class="block">Indicates if the given matrix characteristics exceed the threshold for
caching, i.e., the matrix should be cached.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dim2</code> - dimension 2</dd>
<dd><code>outMem</code> - ?</dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Wrapper over internal filename construction for external usage.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>unique temp file name</dd>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;allowsToFilterEmptyBlockOutputs&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;hop)</pre>
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<pre class="methodSignature">public static&nbsp;long&nbsp;getMatMultNnz&#8203;(double&nbsp;sp1,
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long&nbsp;m,
long&nbsp;k,
long&nbsp;n,
boolean&nbsp;worstcase)</pre>
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<pre class="methodSignature">public static&nbsp;double&nbsp;getMatMultSparsity&#8203;(double&nbsp;sp1,
double&nbsp;sp2,
long&nbsp;m,
long&nbsp;k,
long&nbsp;n,
boolean&nbsp;worstcase)</pre>
<div class="block">Estimates the result sparsity for Matrix Multiplication A %*% B.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sp1</code> - sparsity of A</dd>
<dd><code>sp2</code> - sparsity of B</dd>
<dd><code>m</code> - nrow(A)</dd>
<dd><code>k</code> - ncol(A), nrow(B)</dd>
<dd><code>n</code> - ncol(B)</dd>
<dd><code>worstcase</code> - true if worst case</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the sparsity</dd>
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<pre class="methodSignature">public static&nbsp;double&nbsp;getLeftIndexingSparsity&#8203;(long&nbsp;rlen1,
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long&nbsp;nnz1,
long&nbsp;rlen2,
long&nbsp;clen2,
long&nbsp;nnz2)</pre>
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<div class="block">Determines if a given binary op is potentially conditional sparse safe.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>op</code> - the HOP OpOp2</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if potentially conditional sparse safe</dd>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;isBinaryOpConditionalSparseSafeExact&#8203;(<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
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<div class="block">Determines if a given binary op with scalar literal guarantee an output
sparsity which is exactly the same as its matrix input sparsity.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>op</code> - the HOP OpOp2</dd>
<dd><code>lit</code> - literal operator</dd>
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<dd>true if output sparsity same as matrix input sparsity</dd>
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<pre class="methodSignature">public static&nbsp;boolean&nbsp;isBinaryOpSparsityConditionalSparseSafe&#8203;(<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
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<pre class="methodSignature">public static&nbsp;double&nbsp;getBinaryOpSparsity&#8203;(double&nbsp;sp1,
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<a href="../common/Types.OpOp2.html" title="enum in org.apache.sysds.common">Types.OpOp2</a>&nbsp;op,
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<div class="block">Estimates the result sparsity for matrix-matrix binary operations (A op B)</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sp1</code> - sparsity of A</dd>
<dd><code>sp2</code> - sparsity of B</dd>
<dd><code>op</code> - binary operation</dd>
<dd><code>worstcase</code> - true if worst case</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>result sparsity for matrix-matrix binary operations</dd>
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long&nbsp;nnz2,
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<pre class="methodSignature">public static&nbsp;long&nbsp;getNumIterations&#8203;(<a href="../parser/ForStatementBlock.html" title="class in org.apache.sysds.parser">ForStatementBlock</a>&nbsp;fsb,
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<pre class="methodSignature">public static&nbsp;long&nbsp;rEvalSimpleLongExpression&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html?is-external=true" title="class or interface in java.util" class="externalLink">HashMap</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>,&#8203;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>&gt;&nbsp;valMemo)</pre>
<div class="block">Function to evaluate simple size expressions over literals and now/ncol.
It returns the exact results of this expressions if known, otherwise
Long.MAX_VALUE if unknown.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>root</code> - the root high-level operator</dd>
<dd><code>valMemo</code> - ?</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>size expression</dd>
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<pre class="methodSignature">public static&nbsp;long&nbsp;rEvalSimpleLongExpression&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
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<pre class="methodSignature">public static&nbsp;double&nbsp;rEvalSimpleDoubleExpression&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
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<pre class="methodSignature">public static&nbsp;double&nbsp;rEvalSimpleDoubleExpression&#8203;(<a href="Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;root,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html?is-external=true" title="class or interface in java.util" class="externalLink">HashMap</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Long.html?is-external=true" title="class or interface in java.lang" class="externalLink">Long</a>,&#8203;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html?is-external=true" title="class or interface in java.lang" class="externalLink">Double</a>&gt;&nbsp;valMemo,
<a href="../runtime/controlprogram/LocalVariableMap.html" title="class in org.apache.sysds.runtime.controlprogram">LocalVariableMap</a>&nbsp;vars)</pre>
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