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| <a href="KVStore$.html" title="See companion object"><img alt="Class/Object" src="../../../lib/class_to_object_big.png"/></a> |
| <p id="owner"><a class="extype" href="../../package.html" name="ml">ml</a>.<a class="extype" href="../package.html" name="ml.dmlc">dmlc</a>.<a class="extype" href="package.html" name="ml.dmlc.mxnet">mxnet</a></p> |
| <h1><a href="KVStore$.html" title="See companion object">KVStore</a></h1><h3><span class="morelinks"><div> |
| Related Docs: |
| <a href="KVStore$.html" title="See companion object">object KVStore</a> |
| | <a class="extype" href="package.html" name="ml.dmlc.mxnet">package mxnet</a> |
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| <span class="name">KVStore</span><span class="result"> extends <span class="extype" name="scala.AnyRef">AnyRef</span></span> |
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| <ol><li data-isabs="false" fullcomment="no" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#<init>" visbl="pub"> |
| <a id="<init>(handle:ml.dmlc.mxnet.Base.KVStoreHandle):ml.dmlc.mxnet.KVStore"></a> |
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| <span class="modifier_kind"> |
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| <span class="symbol"> |
| <span class="name">KVStore</span><span class="params">(<span name="handle">handle: <span class="extype" name="ml.dmlc.mxnet.Base.KVStoreHandle">KVStoreHandle</span></span>)</span> |
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| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#barrier" visbl="pub"> |
| <a id="barrier():Unit"></a> |
| <a id="barrier():Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">barrier</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <p class="shortcomment cmt">Global barrier among all worker nodes</p><div class="fullcomment"><div class="comment cmt"><p>Global barrier among all worker nodes</p><p>For example, assume there are n machines, we want to let machine 0 first |
| init the values, and then pull the inited value to all machines. Before |
| pulling, we can place a barrier to guarantee that the initialization is |
| finished. |
| </p></div></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="scala.AnyRef#clone" visbl="prt"> |
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| <span class="modifier"></span> |
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| <span class="defval" name="classOf[java.lang.CloneNotSupportedException]">...</span> |
| </span>)</span> |
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| <span class="symbol"> |
| <span class="name">dispose</span><span class="params">()</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
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| <p class="shortcomment cmt">Release the native memory.</p><div class="fullcomment"><div class="comment cmt"><p>Release the native memory. |
| The object shall never be used after it is disposed. |
| </p></div></div> |
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| <a id="finalize():Unit"></a> |
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| <div class="fullcomment"><dl class="attributes block"> <dt>Attributes</dt><dd>protected </dd><dt>Definition Classes</dt><dd><a class="extype" href="" name="ml.dmlc.mxnet.KVStore">KVStore</a> → AnyRef</dd></dl></div> |
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| <a id="init(key:String,value:ml.dmlc.mxnet.NDArray):Unit"></a> |
| <a id="init(String,NDArray):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">init</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="value">value: <a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <a id="init(keys:Array[String],values:Array[ml.dmlc.mxnet.NDArray]):Unit"></a> |
| <a id="init(Array[String],Array[NDArray]):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">init</span><span class="params">(<span name="keys">keys: <span class="extype" name="scala.Array">Array</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="values">values: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <p class="shortcomment cmt">Initialize a single or a sequence of key-value pairs into the store.</p><div class="fullcomment"><div class="comment cmt"><p>Initialize a single or a sequence of key-value pairs into the store. |
| For each key, one must init it before push and pull. |
| Only worker 0's (rank == 0) data are used. |
| This function returns after data have been initialized successfully |
| </p></div><dl class="paramcmts block"><dt class="param">keys</dt><dd class="cmt"><p>The keys.</p></dd><dt class="param">values</dt><dd class="cmt"><p>The values.</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="scala.Any#isInstanceOf" visbl="pub"> |
| <a id="isInstanceOf[T0]:Boolean"></a> |
| <a id="isInstanceOf[T0]:Boolean"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier">final </span> |
| <span class="kind">def</span> |
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| <span class="symbol"> |
| <span class="name">isInstanceOf</span><span class="tparams">[<span name="T0">T0</span>]</span><span class="result">: <span class="extype" name="scala.Boolean">Boolean</span></span> |
| </span> |
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| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#loadOptimizerStates" visbl="pub"> |
| <a id="loadOptimizerStates(fname:String):Unit"></a> |
| <a id="loadOptimizerStates(String):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">loadOptimizerStates</span><span class="params">(<span name="fname">fname: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
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| </a> |
| </span> |
| <p class="shortcomment cmt">Load optimizer (updater) state from file</p><div class="fullcomment"><div class="comment cmt"><p>Load optimizer (updater) state from file</p></div><dl class="paramcmts block"><dt class="param">fname</dt><dd class="cmt"><p>Path to input states file.</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="scala.AnyRef#ne" visbl="pub"> |
| <a id="ne(x$1:AnyRef):Boolean"></a> |
| <a id="ne(AnyRef):Boolean"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier">final </span> |
| <span class="kind">def</span> |
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| <span class="name">ne</span><span class="params">(<span name="arg0">arg0: <span class="extype" name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <span class="extype" name="scala.Boolean">Boolean</span></span> |
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| <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="scala.AnyRef#notify" visbl="pub"> |
| <a id="notify():Unit"></a> |
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| <span class="modifier_kind"> |
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| <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div> |
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| <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd>AnyRef</dd></dl></div> |
| </li><li data-isabs="false" fullcomment="no" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#numDeadNode" visbl="pub"> |
| <a id="numDeadNode(nodeId:Int):Int"></a> |
| <a id="numDeadNode(Int):Int"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">numDeadNode</span><span class="params">(<span name="nodeId">nodeId: <span class="extype" name="scala.Int">Int</span></span>)</span><span class="result">: <span class="extype" name="scala.Int">Int</span></span> |
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| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#numWorkers" visbl="pub"> |
| <a id="numWorkers:Int"></a> |
| <a id="numWorkers:Int"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">numWorkers</span><span class="result">: <span class="extype" name="scala.Int">Int</span></span> |
| </span> |
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| </a> |
| </span> |
| <p class="shortcomment cmt">Get the number of worker nodes</p><div class="fullcomment"><div class="comment cmt"><p>Get the number of worker nodes</p></div><dl class="paramcmts block"><dt>returns</dt><dd class="cmt"><p>The number of worker nodes</p></dd></dl></div> |
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| <span class="symbol"> |
| <span class="name">pull</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="outs">outs: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <span class="modifier_kind"> |
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| <span class="symbol"> |
| <span class="name">pull</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="outs">outs: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>, <span name="priority">priority: <span class="extype" name="scala.Int">Int</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <span class="symbol"> |
| <span class="name">pull</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="out">out: <a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a></span>, <span name="priority">priority: <span class="extype" name="scala.Int">Int</span> = <span class="symbol">0</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
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| <span class="symbol"> |
| <span class="name">pull</span><span class="params">(<span name="keys">keys: <span class="extype" name="scala.Array">Array</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="outs">outs: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <a id="pull(keys:Array[String],outs:Array[ml.dmlc.mxnet.NDArray],priority:Int):Unit"></a> |
| <a id="pull(Array[String],Array[NDArray],Int):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">pull</span><span class="params">(<span name="keys">keys: <span class="extype" name="scala.Array">Array</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="outs">outs: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>, <span name="priority">priority: <span class="extype" name="scala.Int">Int</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../index.html#ml.dmlc.mxnet.KVStore@pull(keys:Array[String],outs:Array[ml.dmlc.mxnet.NDArray],priority:Int):Unit" target="_top" title="Permalink"> |
| <img alt="Permalink" src="../../../lib/permalink.png"/> |
| </a> |
| </span> |
| <p class="shortcomment cmt">Pull a single value or a sequence of values from the store.</p><div class="fullcomment"><div class="comment cmt"><p>Pull a single value or a sequence of values from the store.</p><p>Data consistency: |
| 1. this function returns after adding an operator to the engine. But any |
| further read on out will be blocked until it is finished. |
| 2. pull is always called after all previous push and pull on the same key are finished |
| 3. It pulls the newest value from the store.</p></div><dl class="paramcmts block"><dt class="param">keys</dt><dd class="cmt"><p>Keys</p></dd><dt class="param">outs</dt><dd class="cmt"><p>According values</p></dd><dt class="param">priority</dt><dd class="cmt"><p> |
| The priority of the push operation. |
| The higher the priority, the faster this action is likely |
| to be executed before other push actions.</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="no" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#push" visbl="pub"> |
| <a id="push(key:String,values:Array[ml.dmlc.mxnet.NDArray]):Unit"></a> |
| <a id="push(String,Array[NDArray]):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">push</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="values">values: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
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| <a id="push(String,Array[NDArray],Int):Unit"></a> |
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| <span class="symbol"> |
| <span class="name">push</span><span class="params">(<span name="key">key: <span class="extype" name="scala.Predef.String">String</span></span>, <span name="values">values: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>, <span name="priority">priority: <span class="extype" name="scala.Int">Int</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <a id="push(keys:Array[String],values:Array[ml.dmlc.mxnet.NDArray]):Unit"></a> |
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| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">push</span><span class="params">(<span name="keys">keys: <span class="extype" name="scala.Array">Array</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="values">values: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
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| <a id="push(keys:Array[String],values:Array[ml.dmlc.mxnet.NDArray],priority:Int):Unit"></a> |
| <a id="push(Array[String],Array[NDArray],Int):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">push</span><span class="params">(<span name="keys">keys: <span class="extype" name="scala.Array">Array</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>, <span name="values">values: <span class="extype" name="scala.Array">Array</span>[<a class="extype" href="NDArray.html" name="ml.dmlc.mxnet.NDArray">NDArray</a>]</span>, <span name="priority">priority: <span class="extype" name="scala.Int">Int</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../index.html#ml.dmlc.mxnet.KVStore@push(keys:Array[String],values:Array[ml.dmlc.mxnet.NDArray],priority:Int):Unit" target="_top" title="Permalink"> |
| <img alt="Permalink" src="../../../lib/permalink.png"/> |
| </a> |
| </span> |
| <p class="shortcomment cmt">Push a single or a sequence of key-value pairs into the store.</p><div class="fullcomment"><div class="comment cmt"><p>Push a single or a sequence of key-value pairs into the store. |
| Data consistency: |
| 1. this function returns after adding an operator to the engine. |
| 2. push is always called after all previous push and pull on the same key are finished |
| 3. there is no synchronization between workers. One can use _barrier() to sync all workers |
| </p></div><dl class="paramcmts block"><dt class="param">keys</dt><dd class="cmt"><p>Keys</p></dd><dt class="param">values</dt><dd class="cmt"><p>According values</p></dd><dt class="param">priority</dt><dd class="cmt"><p> |
| The priority of the push operation. |
| The higher the priority, the faster this action is likely |
| to be executed before other push actions.</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#rank" visbl="pub"> |
| <a id="rank:Int"></a> |
| <a id="rank:Int"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">rank</span><span class="result">: <span class="extype" name="scala.Int">Int</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../index.html#ml.dmlc.mxnet.KVStore@rank:Int" target="_top" title="Permalink"> |
| <img alt="Permalink" src="../../../lib/permalink.png"/> |
| </a> |
| </span> |
| <p class="shortcomment cmt">Get the rank of this worker node</p><div class="fullcomment"><div class="comment cmt"><p>Get the rank of this worker node</p></div><dl class="paramcmts block"><dt>returns</dt><dd class="cmt"><p>The rank of this node, which is in [0, get_num_workers())</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#saveOptimizerStates" visbl="pub"> |
| <a id="saveOptimizerStates(fname:String):Unit"></a> |
| <a id="saveOptimizerStates(String):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">saveOptimizerStates</span><span class="params">(<span name="fname">fname: <span class="extype" name="scala.Predef.String">String</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../index.html#ml.dmlc.mxnet.KVStore@saveOptimizerStates(fname:String):Unit" target="_top" title="Permalink"> |
| <img alt="Permalink" src="../../../lib/permalink.png"/> |
| </a> |
| </span> |
| <p class="shortcomment cmt">Save optimizer (updater) state to file</p><div class="fullcomment"><div class="comment cmt"><p>Save optimizer (updater) state to file</p></div><dl class="paramcmts block"><dt class="param">fname</dt><dd class="cmt"><p>Path to output states file.</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="no" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#setBarrierBeforeExit" visbl="pub"> |
| <a id="setBarrierBeforeExit(barrierBeforeExit:Boolean):Unit"></a> |
| <a id="setBarrierBeforeExit(Boolean):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">setBarrierBeforeExit</span><span class="params">(<span name="barrierBeforeExit">barrierBeforeExit: <span class="extype" name="scala.Boolean">Boolean</span></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
| </h4><span class="permalink"> |
| <a href="../../../index.html#ml.dmlc.mxnet.KVStore@setBarrierBeforeExit(barrierBeforeExit:Boolean):Unit" target="_top" title="Permalink"> |
| <img alt="Permalink" src="../../../lib/permalink.png"/> |
| </a> |
| </span> |
| <p class="shortcomment cmt">Whether to do barrier when the kvstore finalizes</p> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#setOptimizer" visbl="pub"> |
| <a id="setOptimizer(optimizer:ml.dmlc.mxnet.Optimizer):Unit"></a> |
| <a id="setOptimizer(Optimizer):Unit"></a> |
| <h4 class="signature"> |
| <span class="modifier_kind"> |
| <span class="modifier"></span> |
| <span class="kind">def</span> |
| </span> |
| <span class="symbol"> |
| <span class="name">setOptimizer</span><span class="params">(<span name="optimizer">optimizer: <a class="extype" href="Optimizer.html" name="ml.dmlc.mxnet.Optimizer">Optimizer</a></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
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| <img alt="Permalink" src="../../../lib/permalink.png"/> |
| </a> |
| </span> |
| <p class="shortcomment cmt">Register an optimizer to the store |
| If there are multiple machines, this process (should be a worker node) |
| will pack this optimizer and send it to all servers.</p><div class="fullcomment"><div class="comment cmt"><p>Register an optimizer to the store |
| If there are multiple machines, this process (should be a worker node) |
| will pack this optimizer and send it to all servers. It returns after |
| this action is done. |
| </p></div><dl class="paramcmts block"><dt class="param">optimizer</dt><dd class="cmt"><p>the optimizer</p></dd></dl></div> |
| </li><li data-isabs="false" fullcomment="yes" group="Ungrouped" name="ml.dmlc.mxnet.KVStore#setUpdater" visbl="pub"> |
| <a id="setUpdater(updater:ml.dmlc.mxnet.MXKVStoreUpdater):Unit"></a> |
| <a id="setUpdater(MXKVStoreUpdater):Unit"></a> |
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| <span class="name">setUpdater</span><span class="params">(<span name="updater">updater: <a class="extype" href="MXKVStoreUpdater.html" name="ml.dmlc.mxnet.MXKVStoreUpdater">MXKVStoreUpdater</a></span>)</span><span class="result">: <span class="extype" name="scala.Unit">Unit</span></span> |
| </span> |
| </h4><span class="permalink"> |
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| </a> |
| </span> |
| <p class="shortcomment cmt">Set a push updater into the store.</p><div class="fullcomment"><div class="comment cmt"><p>Set a push updater into the store.</p><p>This function only changes the local store. Use setOptimizer for |
| multi-machines. |
| </p></div><dl class="paramcmts block"><dt class="param">updater</dt><dd class="cmt"><p>the updater function</p></dd></dl></div> |
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