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<div class="subTitle">org.apache.sysds.runtime.data</div>
<h2 title="Class TensorBlock" class="title">Class TensorBlock</h2>
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<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<li>org.apache.sysds.runtime.data.TensorBlock</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Externalizable.html?is-external=true" title="class or interface in java.io">Externalizable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, org.apache.hadoop.io.Writable, <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></dd>
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<pre>public class <span class="typeNameLabel">TensorBlock</span>
extends <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>
implements <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Externalizable.html?is-external=true" title="class or interface in java.io">Externalizable</a></pre>
<div class="block">A <code>TensorBlock</code> is the most top level representation of a tensor. There are two types of data representation
which can be used: Basic/Homogeneous and Data/Heterogeneous
Basic supports only one <code>ValueType</code>, while Data supports multiple <code>ValueType</code>s along the column
axis.
The format determines if the <code>TensorBlock</code> uses a <code>BasicTensorBlock</code> or a <code>DataTensorBlock</code>
for storing the data.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../serialized-form.html#org.apache.sysds.runtime.data.TensorBlock">Serialized Form</a></dd>
</dl>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</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/data/TensorBlock.html#DEFAULT_DIMS">DEFAULT_DIMS</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#DEFAULT_VTYPE">DEFAULT_VTYPE</a></span></code>&nbsp;</td>
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<h3>Constructor Summary</h3>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock--">TensorBlock</a></span>()</code>
<div class="block">Create a <code>TensorBlock</code> with [0,0] dimension and homogeneous representation (aka.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-org.apache.sysds.runtime.data.BasicTensorBlock-">TensorBlock</a></span>(<a href="../../../../../org/apache/sysds/runtime/data/BasicTensorBlock.html" title="class in org.apache.sysds.runtime.data">BasicTensorBlock</a>&nbsp;basicTensor)</code>
<div class="block">Wrap the given <code>BasicTensorBlock</code> inside a <code>TensorBlock</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-org.apache.sysds.runtime.data.DataTensorBlock-">TensorBlock</a></span>(<a href="../../../../../org/apache/sysds/runtime/data/DataTensorBlock.html" title="class in org.apache.sysds.runtime.data">DataTensorBlock</a>&nbsp;dataTensor)</code>
<div class="block">Wrap the given <code>DataTensorBlock</code> inside a <code>TensorBlock</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-double-">TensorBlock</a></span>(double&nbsp;value)</code>
<div class="block">Create a [1,1] basic FP64 <code>TensorBlock</code> containing the given value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-int:A-boolean-">TensorBlock</a></span>(int[]&nbsp;dims,
boolean&nbsp;basic)</code>
<div class="block">Create a <code>TensorBlock</code> with the given dimensions and the given data representation (basic/data).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-org.apache.sysds.runtime.data.TensorBlock-">TensorBlock</a></span>(<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;that)</code>
<div class="block">Copy constructor</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-org.apache.sysds.common.Types.ValueType:A-int:A-">TensorBlock</a></span>(<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
int[]&nbsp;dims)</code>
<div class="block">Create a data <code>TensorBlock</code> with the given schema and the given dimensions.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#TensorBlock-org.apache.sysds.common.Types.ValueType-int:A-">TensorBlock</a></span>(<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
int[]&nbsp;dims)</code>
<div class="block">Create a basic <code>TensorBlock</code> with the given <code>ValueType</code> and the given dimensions.</div>
</td>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#allocateBlock--">allocateBlock</a></span>()</code>
<div class="block">If data is not yet allocated, allocate.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#binaryOperations-org.apache.sysds.runtime.matrix.operators.BinaryOperator-org.apache.sysds.runtime.data.TensorBlock-org.apache.sysds.runtime.data.TensorBlock-">binaryOperations</a></span>(<a href="../../../../../org/apache/sysds/runtime/matrix/operators/BinaryOperator.html" title="class in org.apache.sysds.runtime.matrix.operators">BinaryOperator</a>&nbsp;op,
<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;thatValue,
<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;result)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#compactEmptyBlock--">compactEmptyBlock</a></span>()</code>
<div class="block">Free unnecessarily allocated empty block.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#copy-int:A-int:A-org.apache.sysds.runtime.data.TensorBlock-">copy</a></span>(int[]&nbsp;lower,
int[]&nbsp;upper,
<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;src)</code>
<div class="block">Copy a part of another <code>TensorBlock</code></div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#copy-org.apache.sysds.runtime.data.TensorBlock-">copy</a></span>(<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;src)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#copyExact-int:A-int:A-org.apache.sysds.runtime.data.TensorBlock-">copyExact</a></span>(int[]&nbsp;lower,
int[]&nbsp;upper,
<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;src)</code>
<div class="block">Copy a part of another <code>TensorBlock</code>.</div>
</td>
</tr>
<tr id="i6" 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/runtime/data/TensorBlock.html#get-int:A-">get</a></span>(int[]&nbsp;ix)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#get-int-int-">get</a></span>(int&nbsp;r,
int&nbsp;c)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/BasicTensorBlock.html" title="class in org.apache.sysds.runtime.data">BasicTensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getBasicTensor--">getBasicTensor</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i9" 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/runtime/data/TensorBlock.html#getDataCharacteristics--">getDataCharacteristics</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/DataTensorBlock.html" title="class in org.apache.sysds.runtime.data">DataTensorBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getDataTensor--">getDataTensor</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getDim-int-">getDim</a></span>(int&nbsp;i)</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getDims--">getDims</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getExactBlockDataSerializedSize-org.apache.sysds.runtime.data.BasicTensorBlock-">getExactBlockDataSerializedSize</a></span>(<a href="../../../../../org/apache/sysds/runtime/data/BasicTensorBlock.html" title="class in org.apache.sysds.runtime.data">BasicTensorBlock</a>&nbsp;bt)</code>
<div class="block">Get the exact serialized size of a <code>BasicTensorBlock</code> if written by
<code>TensorBlock.writeBlockData(DataOutput,BasicTensorBlock)</code>.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getExactSerializedSize--">getExactSerializedSize</a></span>()</code>
<div class="block">Get the exact serialized size in bytes of the cache block.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getInMemorySize--">getInMemorySize</a></span>()</code>
<div class="block">Get the in-memory size in bytes of the cache block.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getLength--">getLength</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>long[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getLongDims--">getLongDims</a></span>()</code>&nbsp;</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/runtime/data/TensorBlock.html#getNextIndexes-int:A-">getNextIndexes</a></span>(int[]&nbsp;ix)</code>
<div class="block">Calculates the next index array.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getNextIndexes-int:A-int:A-">getNextIndexes</a></span>(int[]&nbsp;dims,
int[]&nbsp;ix)</code>
<div class="block">Calculates the next index array.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getNonZeros--">getNonZeros</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getNumColumns--">getNumColumns</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getNumDims--">getNumDims</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getNumRows--">getNumRows</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getSchema--">getSchema</a></span>()</code>
<div class="block">Get the schema if this <code>TensorBlock</code> is heterogeneous.</div>
</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#getValueType--">getValueType</a></span>()</code>
<div class="block">Get the <code>ValueType</code> if this <code>TensorBlock</code> is homogeneous.</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isAllocated--">isAllocated</a></span>()</code>&nbsp;</td>
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<tr id="i27" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isBasic--">isBasic</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isEmpty--">isEmpty</a></span>()</code>&nbsp;</td>
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<tr id="i29" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isEmpty-boolean-">isEmpty</a></span>(boolean&nbsp;safe)</code>&nbsp;</td>
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<tr id="i30" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isMatrix--">isMatrix</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isShallowSerialize--">isShallowSerialize</a></span>()</code>
<div class="block">Indicates if the cache block is subject to shallow serialized,
which is generally true if in-memory size and serialized size
are almost identical allowing to avoid unnecessary deep serialize.</div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isShallowSerialize-boolean-">isShallowSerialize</a></span>(boolean&nbsp;inclConvert)</code>
<div class="block">Indicates if the cache block is subject to shallow serialized,
which is generally true if in-memory size and serialized size
are almost identical allowing to avoid unnecessary deep serialize.</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#isVector--">isVector</a></span>()</code>&nbsp;</td>
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<tr id="i34" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#merge-org.apache.sysds.runtime.controlprogram.caching.CacheBlock-boolean-">merge</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a>&nbsp;that,
boolean&nbsp;appendOnly)</code>
<div class="block">Merge the given block into the current block.</div>
</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#readExternal-java.io.ObjectInput-">readExternal</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/ObjectInput.html?is-external=true" title="class or interface in java.io">ObjectInput</a>&nbsp;in)</code>&nbsp;</td>
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<tr id="i36" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)</code>&nbsp;</td>
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<tr id="i37" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#reset--">reset</a></span>()</code>
<div class="block">Reset all cells to 0.</div>
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<tr id="i38" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#reset-int:A-">reset</a></span>(int[]&nbsp;dims)</code>
<div class="block">Reset data with new dimensions.</div>
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<tr id="i39" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a></code></td>
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<tr id="i40" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#set-int:A-java.lang.Object-">set</a></span>(int[]&nbsp;ix,
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<div class="block">Set a cell to the value given as an `Object`.</div>
</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#set-int-int-double-">set</a></span>(int&nbsp;r,
int&nbsp;c,
double&nbsp;v)</code>
<div class="block">Set a cell in a 2-dimensional tensor.</div>
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<tr id="i42" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#set-org.apache.sysds.runtime.matrix.data.MatrixBlock-">set</a></span>(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;other)</code>&nbsp;</td>
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<tr id="i43" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#set-java.lang.Object-">set</a></span>(<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;v)</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a></code></td>
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<div class="block">Slice the current block and write into the outBlock.</div>
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<tr id="i45" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></td>
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int&nbsp;cl,
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<div class="block">Slice a sub block out of the current block and write into the given output block.</div>
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<tr id="i46" class="altColor">
<td class="colFirst"><code>void</code></td>
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<div class="block">Converts a cache block that is not shallow serializable into
a form that is shallow serializable.</div>
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<tr id="i47" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#write-java.io.DataOutput-">write</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)</code>&nbsp;</td>
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<tr id="i48" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#writeBlockData-java.io.DataOutput-org.apache.sysds.runtime.data.BasicTensorBlock-">writeBlockData</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out,
<a href="../../../../../org/apache/sysds/runtime/data/BasicTensorBlock.html" title="class in org.apache.sysds.runtime.data">BasicTensorBlock</a>&nbsp;bt)</code>
<div class="block">Write a <code>BasicTensorBlock</code>.</div>
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<tr id="i49" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html#writeExternal-java.io.ObjectOutput-">writeExternal</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/ObjectOutput.html?is-external=true" title="class or interface in java.io">ObjectOutput</a>&nbsp;out)</code>&nbsp;</td>
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<pre>public&nbsp;long&nbsp;getInMemorySize()</pre>
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<div class="block">Get the in-memory size in bytes of the cache block.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#getInMemorySize--">getInMemorySize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>in-memory size in bytes of cache block</dd>
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<div class="block">Indicates if the cache block is subject to shallow serialized,
which is generally true if in-memory size and serialized size
are almost identical allowing to avoid unnecessary deep serialize.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#isShallowSerialize--">isShallowSerialize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Indicates if the cache block is subject to shallow serialized,
which is generally true if in-memory size and serialized size
are almost identical allowing to avoid unnecessary deep serialize.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#isShallowSerialize-boolean-">isShallowSerialize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inclConvert</code> - if true report blocks as shallow serialize that are
currently not amenable but can be brought into an amenable form
via <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#toShallowSerializeBlock--"><code>toShallowSerializeBlock</code></a>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Converts a cache block that is not shallow serializable into
a form that is shallow serializable. This methods has no affect
if the given cache block is not amenable.</div>
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<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#toShallowSerializeBlock--">toShallowSerializeBlock</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
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<div class="block">Free unnecessarily allocated empty block.</div>
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<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#compactEmptyBlock--">compactEmptyBlock</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a>&nbsp;slice(int&nbsp;rl,
int&nbsp;ru,
int&nbsp;cl,
int&nbsp;cu,
<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a>&nbsp;block)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#slice-int-int-int-int-org.apache.sysds.runtime.controlprogram.caching.CacheBlock-">CacheBlock</a></code></span></div>
<div class="block">Slice a sub block out of the current block and write into the given output block.
This method returns the passed instance if not null.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#slice-int-int-int-int-org.apache.sysds.runtime.controlprogram.caching.CacheBlock-">slice</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rl</code> - row lower</dd>
<dd><code>ru</code> - row upper</dd>
<dd><code>cl</code> - column lower</dd>
<dd><code>cu</code> - column upper</dd>
<dd><code>block</code> - cache block</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>sub-block of cache block</dd>
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boolean&nbsp;appendOnly)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#merge-org.apache.sysds.runtime.controlprogram.caching.CacheBlock-boolean-">CacheBlock</a></code></span></div>
<div class="block">Merge the given block into the current block. Both blocks needs to be of equal
dimensions and contain disjoint non-zero cells.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#merge-org.apache.sysds.runtime.controlprogram.caching.CacheBlock-boolean-">merge</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>that</code> - cache block</dd>
<dd><code>appendOnly</code> - ?</dd>
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<pre>public static&nbsp;void&nbsp;getNextIndexes(int[]&nbsp;dims,
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<div class="block">Calculates the next index array. Note that if the given index array was the last element, the next index will
be the first one.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dims</code> - the dims array for which we have to decide the next index</dd>
<dd><code>ix</code> - the index array which will be incremented to the next index array</dd>
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<pre>public&nbsp;void&nbsp;getNextIndexes(int[]&nbsp;ix)</pre>
<div class="block">Calculates the next index array. Note that if the given index array was the last element, the next index will
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ix</code> - the index array which will be incremented to the next index array</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;get(int[]&nbsp;ix)</pre>
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<pre>public&nbsp;double&nbsp;get(int&nbsp;r,
int&nbsp;c)</pre>
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<pre>public&nbsp;void&nbsp;set(<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;other)</pre>
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<pre>public&nbsp;void&nbsp;set(int[]&nbsp;ix,
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<div class="block">Set a cell to the value given as an `Object`.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ix</code> - indexes in each dimension, starting with 0</dd>
<dd><code>v</code> - value to set</dd>
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<pre>public&nbsp;void&nbsp;set(int&nbsp;r,
int&nbsp;c,
double&nbsp;v)</pre>
<div class="block">Set a cell in a 2-dimensional tensor.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>r</code> - row of the cell</dd>
<dd><code>c</code> - column of the cell</dd>
<dd><code>v</code> - value to set</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;slice(int[]&nbsp;offsets,
<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;outBlock)</pre>
<div class="block">Slice the current block and write into the outBlock. The offsets determines where the slice starts,
the length of the blocks is given by the outBlock dimensions.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>offsets</code> - offsets where the slice starts</dd>
<dd><code>outBlock</code> - sliced result block</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the sliced result block</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;copy(int[]&nbsp;lower,
int[]&nbsp;upper,
<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;src)</pre>
<div class="block">Copy a part of another <code>TensorBlock</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>lower</code> - lower index of elements to copy (inclusive)</dd>
<dd><code>upper</code> - upper index of elements to copy (exclusive)</dd>
<dd><code>src</code> - source <code>TensorBlock</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the shallow copy of the src <code>TensorBlock</code></dd>
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int[]&nbsp;upper,
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<div class="block">Copy a part of another <code>TensorBlock</code>. The difference to <code>copy()</code> is that
this allows for exact sub-blocks instead of taking all consecutive data elements from lower to upper.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>lower</code> - lower index of elements to copy (inclusive)</dd>
<dd><code>upper</code> - upper index of elements to copy (exclusive)</dd>
<dd><code>src</code> - source <code>TensorBlock</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the deep copy of the src <code>TensorBlock</code></dd>
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<div class="block">Get the exact serialized size in bytes of the cache block.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html#getExactSerializedSize--">getExactSerializedSize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheBlock.html" title="interface in org.apache.sysds.runtime.controlprogram.caching">CacheBlock</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>exact serialized size in bytes of cache block</dd>
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bt</code> - <code>BasicTensorBlock</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the size of the block data in serialized form</dd>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>write</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.io.Writable</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>out</code> - output stream</dd>
<dd><code>bt</code> - source <code>BasicTensorBlock</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if writing with the output stream fails</dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public&nbsp;void&nbsp;readExternal(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/ObjectInput.html?is-external=true" title="class or interface in java.io">ObjectInput</a>&nbsp;in)
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/sysds/runtime/data/TensorBlock.html" title="class in org.apache.sysds.runtime.data">TensorBlock</a>&nbsp;binaryOperations(<a href="../../../../../org/apache/sysds/runtime/matrix/operators/BinaryOperator.html" title="class in org.apache.sysds.runtime.matrix.operators">BinaryOperator</a>&nbsp;op,
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