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<div class="subTitle">org.apache.sysds.runtime.controlprogram.parfor.opt</div>
<h2 title="Class OptimizerRuleBased" class="title">Class OptimizerRuleBased</h2>
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<li><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">org.apache.sysds.runtime.controlprogram.parfor.opt.Optimizer</a></li>
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<dd><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerConstrained.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">OptimizerConstrained</a>, <a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerHeuristic.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">OptimizerHeuristic</a></dd>
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<pre>public class <span class="typeNameLabel">OptimizerRuleBased</span>
extends <a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer</a></pre>
<div class="block">Rule-Based ParFor Optimizer (time: O(n)):
Applied rule-based rewrites
- 1) rewrite set data partitioner (incl. recompile RIX)
- 2) rewrite remove unnecessary compare matrix
- 3) rewrite result partitioning (incl. recompile LIX)
- 4) rewrite set execution strategy
- 5) rewrite set operations exec type (incl. recompile)
- 6) rewrite use data colocation
- 7) rewrite set partition replication factor
- 8) rewrite set export replication factor
- 9) rewrite use nested parallelism
- 10) rewrite set degree of parallelism
- 11) rewrite set task partitioner
- 12) rewrite set fused data partitioning and execution
- 13) rewrite transpose vector operations (for sparse)
- 14) rewrite set in-place result indexing
- 15) rewrite disable caching (prevent sparse serialization)
- 16) rewrite enable runtime piggybacking
- 17) rewrite inject spark loop checkpointing
- 18) rewrite inject spark repartition (for zipmm)
- 19) rewrite set spark eager rdd caching
- 20) rewrite set result merge
- 21) rewrite set recompile memory budget
- 22) rewrite remove recursive parfor
- 23) rewrite remove unnecessary parfor
TODO fuse also result merge into fused data partitioning and execute
(for writing the result directly from execute we need to partition
columns/rows according to blocksize -&gt; rewrite (only applicable if
numCols/blocksize&gt;numreducers)+custom MR partitioner)
TODO take remote memory into account in data/result partitioning rewrites (smaller/larger)
TODO memory estimates with shared reads
TODO memory estimates of result merge into plan tree
TODO blockwise partitioning</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.sysds.runtime.controlprogram.parfor.opt.<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer</a></h3>
<code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.CostModelType.html" title="enum in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer.CostModelType</a>, <a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.PlanInputType.html" title="enum in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer.PlanInputType</a></code></li>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#ALLOW_REMOTE_NESTED_PARALLELISM">ALLOW_REMOTE_NESTED_PARALLELISM</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#FUNCTION_UNFOLD_NAMEPREFIX">FUNCTION_UNFOLD_NAMEPREFIX</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#MAX_REPLICATION_FACTOR_EXPORT">MAX_REPLICATION_FACTOR_EXPORT</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#MAX_REPLICATION_FACTOR_PARTITIONING">MAX_REPLICATION_FACTOR_PARTITIONING</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#PAR_K_FACTOR">PAR_K_FACTOR</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#PAR_K_MR_FACTOR">PAR_K_MR_FACTOR</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#PROB_SIZE_THRESHOLD_MB">PROB_SIZE_THRESHOLD_MB</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#PROB_SIZE_THRESHOLD_PARTITIONING">PROB_SIZE_THRESHOLD_PARTITIONING</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#PROB_SIZE_THRESHOLD_REMOTE">PROB_SIZE_THRESHOLD_REMOTE</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#OptimizerRuleBased--">OptimizerRuleBased</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#allowsBinaryCellPartitions-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-org.apache.sysds.runtime.controlprogram.ParForProgramBlock.PartitionFormat-">allowsBinaryCellPartitions</a></span>(<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;mo,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.PartitionFormat.html" title="class in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.PartitionFormat</a>&nbsp;dpf)</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.CostModelType.html" title="enum in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer.CostModelType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#getCostModelType--">getCostModelType</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.POptMode.html" title="enum in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.POptMode</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#getOptMode--">getOptMode</a></span>()</code>&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.PlanInputType.html" title="enum in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer.PlanInputType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#getPlanInputType--">getPlanInputType</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#isInMemoryResultMerge-long-long-double-">isInMemoryResultMerge</a></span>(long&nbsp;rows,
long&nbsp;cols,
double&nbsp;memBudget)</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#optimize-org.apache.sysds.parser.ParForStatementBlock-org.apache.sysds.runtime.controlprogram.ParForProgramBlock-org.apache.sysds.runtime.controlprogram.parfor.opt.OptTree-org.apache.sysds.runtime.controlprogram.parfor.opt.CostEstimator-org.apache.sysds.runtime.controlprogram.context.ExecutionContext-">optimize</a></span>(<a href="../../../../../../../org/apache/sysds/parser/ParForStatementBlock.html" title="class in org.apache.sysds.parser">ParForStatementBlock</a>&nbsp;sb,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.html" title="class in org.apache.sysds.runtime.controlprogram">ParForProgramBlock</a>&nbsp;pb,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptTree.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">OptTree</a>&nbsp;plan,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/CostEstimator.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">CostEstimator</a>&nbsp;est,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/context/ExecutionContext.html" title="class in org.apache.sysds.runtime.controlprogram.context">ExecutionContext</a>&nbsp;ec)</code>
<div class="block">Main optimization procedure.</div>
</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptimizerRuleBased.html#toMB-double-">toMB</a></span>(double&nbsp;inB)</code>&nbsp;</td>
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<code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html#getNumEvaluatedPlans--">getNumEvaluatedPlans</a>, <a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html#getNumTotalPlans--">getNumTotalPlans</a></code></li>
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<pre>public static final&nbsp;double PROB_SIZE_THRESHOLD_REMOTE</pre>
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<pre>public static final&nbsp;double PROB_SIZE_THRESHOLD_PARTITIONING</pre>
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<pre>public static final&nbsp;double PROB_SIZE_THRESHOLD_MB</pre>
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<pre>public static final&nbsp;int MAX_REPLICATION_FACTOR_PARTITIONING</pre>
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<pre>public static final&nbsp;int MAX_REPLICATION_FACTOR_EXPORT</pre>
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<pre>public static final&nbsp;boolean ALLOW_REMOTE_NESTED_PARALLELISM</pre>
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<pre>public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> FUNCTION_UNFOLD_NAMEPREFIX</pre>
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<pre>public static final&nbsp;double PAR_K_FACTOR</pre>
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<pre>public static final&nbsp;double PAR_K_MR_FACTOR</pre>
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<pre>public&nbsp;OptimizerRuleBased()</pre>
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<pre>public&nbsp;<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.CostModelType.html" title="enum in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer.CostModelType</a>&nbsp;getCostModelType()</pre>
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<pre>public&nbsp;<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.PlanInputType.html" title="enum in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer.PlanInputType</a>&nbsp;getPlanInputType()</pre>
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<dd><code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html#getPlanInputType--">getPlanInputType</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer</a></code></dd>
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<pre>public&nbsp;<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.POptMode.html" title="enum in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.POptMode</a>&nbsp;getOptMode()</pre>
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<pre>public&nbsp;boolean&nbsp;optimize(<a href="../../../../../../../org/apache/sysds/parser/ParForStatementBlock.html" title="class in org.apache.sysds.parser">ParForStatementBlock</a>&nbsp;sb,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.html" title="class in org.apache.sysds.runtime.controlprogram">ParForProgramBlock</a>&nbsp;pb,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/OptTree.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">OptTree</a>&nbsp;plan,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/CostEstimator.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">CostEstimator</a>&nbsp;est,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/context/ExecutionContext.html" title="class in org.apache.sysds.runtime.controlprogram.context">ExecutionContext</a>&nbsp;ec)</pre>
<div class="block">Main optimization procedure.
Transformation-based heuristic (rule-based) optimization
(no use of sb, direct change of pb).</div>
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<dd><code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html#optimize-org.apache.sysds.parser.ParForStatementBlock-org.apache.sysds.runtime.controlprogram.ParForProgramBlock-org.apache.sysds.runtime.controlprogram.parfor.opt.OptTree-org.apache.sysds.runtime.controlprogram.parfor.opt.CostEstimator-org.apache.sysds.runtime.controlprogram.context.ExecutionContext-">optimize</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../org/apache/sysds/runtime/controlprogram/parfor/opt/Optimizer.html" title="class in org.apache.sysds.runtime.controlprogram.parfor.opt">Optimizer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sb</code> - parfor statement block</dd>
<dd><code>pb</code> - parfor program block</dd>
<dd><code>plan</code> - complete plan of a top-level parfor</dd>
<dd><code>est</code> - cost estimator</dd>
<dd><code>ec</code> - execution context</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if plan changed, false otherwise</dd>
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<pre>public static&nbsp;boolean&nbsp;allowsBinaryCellPartitions(<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;mo,
<a href="../../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.PartitionFormat.html" title="class in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.PartitionFormat</a>&nbsp;dpf)</pre>
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<pre>public static&nbsp;boolean&nbsp;isInMemoryResultMerge(long&nbsp;rows,
long&nbsp;cols,
double&nbsp;memBudget)</pre>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;toMB(double&nbsp;inB)</pre>
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