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<div class="subTitle">org.apache.sysds.hops.codegen.opt</div>
<h2 title="Class PlanSelectionFuseCostBased" class="title">Class PlanSelectionFuseCostBased</h2>
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<li><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.html" title="class in org.apache.sysds.hops.codegen.opt">org.apache.sysds.hops.codegen.opt.PlanSelection</a></li>
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<li>org.apache.sysds.hops.codegen.opt.PlanSelectionFuseCostBased</li>
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<pre>public class <span class="typeNameLabel">PlanSelectionFuseCostBased</span>
extends <a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.html" title="class in org.apache.sysds.hops.codegen.opt">PlanSelection</a></pre>
<div class="block">This cost-based plan selection algorithm chooses fused operators
based on the DAG structure and resulting overall costs. This primarily
includes decisions on materialization points, but also heuristics for
template types, and composed multi output templates.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.sysds.hops.codegen.opt.<a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.html" title="class in org.apache.sysds.hops.codegen.opt">PlanSelection</a></h3>
<code><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.VisitMarkCost.html" title="class in org.apache.sysds.hops.codegen.opt">PlanSelection.VisitMarkCost</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelectionFuseCostBased.html#PlanSelectionFuseCostBased--">PlanSelectionFuseCostBased</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelectionFuseCostBased.html#selectPlans-org.apache.sysds.hops.codegen.template.CPlanMemoTable-java.util.ArrayList-">selectPlans</a></span>(<a href="../../../../../../org/apache/sysds/hops/codegen/template/CPlanMemoTable.html" title="class in org.apache.sysds.hops.codegen.template">CPlanMemoTable</a>&nbsp;memo,
<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;roots)</code>
<div class="block">Given a HOP DAG G, and a set of partial fusions plans P, find the set of optimal,
non-conflicting fusion plans P' that applied to G minimizes costs C with
P' = \argmin_{p \subseteq P} C(G, p) s.t.</div>
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<h4>PlanSelectionFuseCostBased</h4>
<pre>public&nbsp;PlanSelectionFuseCostBased()</pre>
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<h4>selectPlans</h4>
<pre>public&nbsp;void&nbsp;selectPlans(<a href="../../../../../../org/apache/sysds/hops/codegen/template/CPlanMemoTable.html" title="class in org.apache.sysds.hops.codegen.template">CPlanMemoTable</a>&nbsp;memo,
<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;roots)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.html#selectPlans-org.apache.sysds.hops.codegen.template.CPlanMemoTable-java.util.ArrayList-">PlanSelection</a></code></span></div>
<div class="block">Given a HOP DAG G, and a set of partial fusions plans P, find the set of optimal,
non-conflicting fusion plans P' that applied to G minimizes costs C with
P' = \argmin_{p \subseteq P} C(G, p) s.t. Z \vDash p, where Z is a set of
constraints such as memory budgets and block size restrictions per fused operator.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.html#selectPlans-org.apache.sysds.hops.codegen.template.CPlanMemoTable-java.util.ArrayList-">selectPlans</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/hops/codegen/opt/PlanSelection.html" title="class in org.apache.sysds.hops.codegen.opt">PlanSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>memo</code> - partial fusion plans P</dd>
<dd><code>roots</code> - entry points of HOP DAG G</dd>
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