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<div class="subTitle">org.apache.sysds.hops</div>
<h2 title="Class FunctionOp" class="title">Class FunctionOp</h2>
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<li><a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">org.apache.sysds.hops.Hop</a></li>
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<li>org.apache.sysds.hops.FunctionOp</li>
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<pre>public class <span class="typeNameLabel">FunctionOp</span>
extends <a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a></pre>
<div class="block">This FunctionOp represents the call to a DML-bodied or external function.
Note: Currently, we support expressions in function arguments along with function calls
in expressions with single outputs, leaving multiple outputs handling as it is.</div>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a></span></code>&nbsp;</td>
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<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/hops/FunctionOp.html#OPCODE">OPCODE</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.sysds.hops.<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a></h3>
<code><a href="../../../../org/apache/sysds/hops/Hop.html#Z:Z_beginColumn">_beginColumn</a>, <a href="../../../../org/apache/sysds/hops/Hop.html#Z:Z_beginLine">_beginLine</a>, <a href="../../../../org/apache/sysds/hops/Hop.html#Z:Z_endColumn">_endColumn</a>, <a href="../../../../org/apache/sysds/hops/Hop.html#Z:Z_endLine">_endLine</a>, <a href="../../../../org/apache/sysds/hops/Hop.html#Z:Z_filename">_filename</a>, <a href="../../../../org/apache/sysds/hops/Hop.html#Z:Z_text">_text</a>, <a href="../../../../org/apache/sysds/hops/Hop.html#CPThreshold">CPThreshold</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#FunctionOp-org.apache.sysds.hops.FunctionOp.FunctionType-java.lang.String-java.lang.String-java.lang.String:A-java.util.List-java.lang.String:A-java.util.ArrayList-">FunctionOp</a></span>(<a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a>&nbsp;type,
<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;fnamespace,
<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;fname,
<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;inputNames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&gt;&nbsp;inputs,
<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;outputNames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&gt;&nbsp;outputHops)</code>&nbsp;</td>
</tr>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#FunctionOp-org.apache.sysds.hops.FunctionOp.FunctionType-java.lang.String-java.lang.String-java.lang.String:A-java.util.List-java.lang.String:A-boolean-">FunctionOp</a></span>(<a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a>&nbsp;type,
<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;fnamespace,
<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;fname,
<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;inputNames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&gt;&nbsp;inputs,
<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;outputNames,
boolean&nbsp;singleOut)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#FunctionOp-org.apache.sysds.hops.FunctionOp.FunctionType-java.lang.String-java.lang.String-java.lang.String:A-java.util.List-java.lang.String:A-boolean-boolean-">FunctionOp</a></span>(<a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a>&nbsp;type,
<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;fnamespace,
<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;fname,
<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;inputNames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&gt;&nbsp;inputs,
<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;outputNames,
boolean&nbsp;singleOut,
boolean&nbsp;pseudo)</code>&nbsp;</td>
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#allowsAllExecTypes--">allowsAllExecTypes</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#checkArity--">checkArity</a></span>()</code>
<div class="block">FunctionOps may have any number of inputs.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#clone--">clone</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#compare-org.apache.sysds.hops.Hop-">compare</a></span>(<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;that)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#computeMemEstimate-org.apache.sysds.hops.MemoTable-">computeMemEstimate</a></span>(<a href="../../../../org/apache/sysds/hops/MemoTable.html" title="class in org.apache.sysds.hops">MemoTable</a>&nbsp;memo)</code>
<div class="block">Computes the estimate of memory required to store the input/output of this hop in memory.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/sysds/lops/Lop.html" title="class in org.apache.sysds.lops">Lop</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#constructLops--">constructLops</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#containsOutput-java.lang.String-">containsOutput</a></span>(<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;varname)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><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/hops/FunctionOp.html#getFunctionKey--">getFunctionKey</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><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/hops/FunctionOp.html#getFunctionName--">getFunctionName</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><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/hops/FunctionOp.html#getFunctionNamespace--">getFunctionNamespace</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#getFunctionType--">getFunctionType</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><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/hops/FunctionOp.html#getInputVariableNames--">getInputVariableNames</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><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/hops/FunctionOp.html#getOpString--">getOpString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#getOutputs--">getOutputs</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code><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/hops/FunctionOp.html#getOutputVariableNames--">getOutputVariableNames</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#isGPUEnabled--">isGPUEnabled</a></span>()</code>
<div class="block">In memory-based optimizer mode (see OptimizerUtils.isMemoryBasedOptLevel()),
the exectype is determined by checking this method as well as memory budget of this Hop.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#isPseudoFunctionCall--">isPseudoFunctionCall</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#refreshSizeInformation--">refreshSizeInformation</a></span>()</code>
<div class="block">Update the output size information for this hop.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#setCallOptimized-boolean-">setCallOptimized</a></span>(boolean&nbsp;opt)</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#setFunctionName-java.lang.String-">setFunctionName</a></span>(<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;fname)</code>&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#setFunctionNamespace-java.lang.String-">setFunctionNamespace</a></span>(<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;fnamespace)</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/sysds/hops/FunctionOp.html#setInputVariableNames-java.lang.String:A-">setInputVariableNames</a></span>(<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;names)</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;org.apache.sysds.hops.<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a></h3>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.sysds.parser.<a href="../../../../org/apache/sysds/parser/ParseInfo.html" title="interface in org.apache.sysds.parser">ParseInfo</a></h3>
<code><a href="../../../../org/apache/sysds/parser/ParseInfo.html#ctxAndFilenameToParseInfo-org.antlr.v4.runtime.ParserRuleContext-java.lang.String-">ctxAndFilenameToParseInfo</a></code></li>
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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> OPCODE</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.sysds.hops.FunctionOp.OPCODE">Constant Field Values</a></dd>
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<pre>public&nbsp;FunctionOp(<a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a>&nbsp;type,
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<pre>public&nbsp;FunctionOp(<a href="../../../../org/apache/sysds/hops/FunctionOp.FunctionType.html" title="enum in org.apache.sysds.hops">FunctionOp.FunctionType</a>&nbsp;type,
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<h4>setCallOptimized</h4>
<pre>public&nbsp;void&nbsp;setCallOptimized(boolean&nbsp;opt)</pre>
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<pre>public&nbsp;boolean&nbsp;isPseudoFunctionCall()</pre>
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<pre>public&nbsp;boolean&nbsp;allowsAllExecTypes()</pre>
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<h4>computeMemEstimate</h4>
<pre>public&nbsp;void&nbsp;computeMemEstimate(<a href="../../../../org/apache/sysds/hops/MemoTable.html" title="class in org.apache.sysds.hops">MemoTable</a>&nbsp;memo)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../org/apache/sysds/hops/Hop.html#computeMemEstimate-org.apache.sysds.hops.MemoTable-">Hop</a></code></span></div>
<div class="block">Computes the estimate of memory required to store the input/output of this hop in memory.
This is the default implementation (orchestration of hop-specific implementation)
that should suffice for most hops. If a hop requires more control, this method should
be overwritten with awareness of (1) output estimates, and (2) propagation of worst-case
matrix characteristics (dimensions, sparsity).
TODO remove memo table and, on constructor refresh, inference in refresh, single compute mem,
maybe general computeMemEstimate, flags to indicate if estimate or not.</div>
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<dd><code><a href="../../../../org/apache/sysds/hops/Hop.html#computeMemEstimate-org.apache.sysds.hops.MemoTable-">computeMemEstimate</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>memo</code> - memory table</dd>
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<pre>public&nbsp;boolean&nbsp;isGPUEnabled()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../org/apache/sysds/hops/Hop.html#isGPUEnabled--">Hop</a></code></span></div>
<div class="block">In memory-based optimizer mode (see OptimizerUtils.isMemoryBasedOptLevel()),
the exectype is determined by checking this method as well as memory budget of this Hop.
Please see findExecTypeByMemEstimate for more detail.
This method is necessary because not all operator are supported efficiently
on GPU (for example: operations on frames and scalar as well as operations such as table).</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the Hop is eligible for GPU Exectype.</dd>
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<pre>public&nbsp;<a href="../../../../org/apache/sysds/lops/Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;constructLops()</pre>
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<pre>public&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;getOpString()</pre>
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<pre>public&nbsp;void&nbsp;refreshSizeInformation()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../org/apache/sysds/hops/Hop.html#refreshSizeInformation--">Hop</a></code></span></div>
<div class="block">Update the output size information for this hop.</div>
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<dd><code><a href="../../../../org/apache/sysds/hops/Hop.html#refreshSizeInformation--">refreshSizeInformation</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a></code></dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;clone()
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CloneNotSupportedException.html?is-external=true" title="class or interface in java.lang">CloneNotSupportedException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CloneNotSupportedException.html?is-external=true" title="class or interface in java.lang">CloneNotSupportedException</a></code></dd>
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<pre>public&nbsp;boolean&nbsp;compare(<a href="../../../../org/apache/sysds/hops/Hop.html" title="class in org.apache.sysds.hops">Hop</a>&nbsp;that)</pre>
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