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<div class="subTitle">org.apache.sysds.hops.estim</div>
<h2 title="Class EstimatorBitsetMM" class="title">Class EstimatorBitsetMM</h2>
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<li><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html" title="class in org.apache.sysds.hops.estim">org.apache.sysds.hops.estim.SparsityEstimator</a></li>
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<pre>public class <span class="typeNameLabel">EstimatorBitsetMM</span>
extends <a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html" title="class in org.apache.sysds.hops.estim">SparsityEstimator</a></pre>
<div class="block">This estimator implements a naive but rather common approach of boolean matrix
multiplies which allows to infer the exact non-zero structure and thus is
also useful for sparse result preallocation.
For example, the following paper indicates that this approach is used for sparse
spGEMM in NVIDIA cuSPARSE and Intel MKL:
Weifeng Liu and Brian Vinter. An Efficient GPU General Sparse Matrix-Matrix
Multiplication for Irregular Data. In IPDPS, pages 370–381, 2014.</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/estim/EstimatorBitsetMM.BitsetMatrix.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.BitsetMatrix1.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix1</a></span></code>
<div class="block">This class represents a boolean matrix and provides key operations.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.BitsetMatrix2.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix2</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#EstimatorBitsetMM--">EstimatorBitsetMM</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.BitsetMatrix.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#createBitset-int-int-">createBitset</a></span>(int&nbsp;m,
int&nbsp;n)</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.BitsetMatrix.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#createBitset-org.apache.sysds.runtime.matrix.data.MatrixBlock-">createBitset</a></span>(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;in)</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-">estim</a></span>(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m1,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m2)</code>
<div class="block">Estimates the output sparsity for a single matrix multiplication.</div>
</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.hops.estim.SparsityEstimator.OpCode-">estim</a></span>(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m1,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m2,
<a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.OpCode.html" title="enum in org.apache.sysds.hops.estim">SparsityEstimator.OpCode</a>&nbsp;op)</code>
<div class="block">Estimates the output sparsity for a given binary operation.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.hops.estim.SparsityEstimator.OpCode-">estim</a></span>(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m,
<a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.OpCode.html" title="enum in org.apache.sysds.hops.estim">SparsityEstimator.OpCode</a>&nbsp;op)</code>
<div class="block">Estimates the output sparsity for a given unary operation.</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.html#estim-org.apache.sysds.hops.estim.MMNode-">estim</a></span>(<a href="../../../../../org/apache/sysds/hops/estim/MMNode.html" title="class in org.apache.sysds.hops.estim">MMNode</a>&nbsp;root)</code>
<div class="block">Estimates the output sparsity of a DAG of matrix multiplications
for the given operator graph of a single root node.</div>
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<pre>public&nbsp;EstimatorBitsetMM()</pre>
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<h4>estim</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;estim(<a href="../../../../../org/apache/sysds/hops/estim/MMNode.html" title="class in org.apache.sysds.hops.estim">MMNode</a>&nbsp;root)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.hops.estim.MMNode-">SparsityEstimator</a></code></span></div>
<div class="block">Estimates the output sparsity of a DAG of matrix multiplications
for the given operator graph of a single root node.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.hops.estim.MMNode-">estim</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html" title="class in org.apache.sysds.hops.estim">SparsityEstimator</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>root</code> - DAG root node</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>output data characteristics</dd>
</dl>
</li>
</ul>
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<h4>estim</h4>
<pre>public&nbsp;double&nbsp;estim(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m1,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m2)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-">SparsityEstimator</a></code></span></div>
<div class="block">Estimates the output sparsity for a single matrix multiplication.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-">estim</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html" title="class in org.apache.sysds.hops.estim">SparsityEstimator</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>m1</code> - left-hand-side operand</dd>
<dd><code>m2</code> - right-hand-side operand</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>sparsity</dd>
</dl>
</li>
</ul>
<a name="estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.hops.estim.SparsityEstimator.OpCode-">
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<h4>estim</h4>
<pre>public&nbsp;double&nbsp;estim(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m1,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m2,
<a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.OpCode.html" title="enum in org.apache.sysds.hops.estim">SparsityEstimator.OpCode</a>&nbsp;op)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.hops.estim.SparsityEstimator.OpCode-">SparsityEstimator</a></code></span></div>
<div class="block">Estimates the output sparsity for a given binary operation.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.hops.estim.SparsityEstimator.OpCode-">estim</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html" title="class in org.apache.sysds.hops.estim">SparsityEstimator</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>m1</code> - left-hand-side operand</dd>
<dd><code>m2</code> - right-hand-side operand</dd>
<dd><code>op</code> - operator code</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>sparsity</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;double&nbsp;estim(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;m,
<a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.OpCode.html" title="enum in org.apache.sysds.hops.estim">SparsityEstimator.OpCode</a>&nbsp;op)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/sysds/hops/estim/SparsityEstimator.html#estim-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.hops.estim.SparsityEstimator.OpCode-">SparsityEstimator</a></code></span></div>
<div class="block">Estimates the output sparsity for a given unary operation.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.BitsetMatrix.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix</a>&nbsp;createBitset(int&nbsp;m,
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/hops/estim/EstimatorBitsetMM.BitsetMatrix.html" title="class in org.apache.sysds.hops.estim">EstimatorBitsetMM.BitsetMatrix</a>&nbsp;createBitset(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;in)</pre>
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