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<h1 title="Package" class="title">Package&nbsp;org.apache.sysds.runtime.util</h1>
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<th class="colFirst" scope="row"><a href="BinaryBlockInputFormat.html" title="class in org.apache.sysds.runtime.util">BinaryBlockInputFormat</a></th>
<td class="colLast">
<div class="block">Custom binary block input format to return the custom record reader.</div>
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<th class="colFirst" scope="row"><a href="BinaryBlockRecordReader.html" title="class in org.apache.sysds.runtime.util">BinaryBlockRecordReader</a></th>
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<div class="block">Custom record reader for binary block.</div>
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<th class="colFirst" scope="row"><a href="ByteBufferDataInput.html" title="class in org.apache.sysds.runtime.util">ByteBufferDataInput</a></th>
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<th class="colFirst" scope="row"><a href="CollectionUtils.html" title="class in org.apache.sysds.runtime.util">CollectionUtils</a></th>
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<th class="colFirst" scope="row"><a href="CommonThreadPool.html" title="class in org.apache.sysds.runtime.util">CommonThreadPool</a></th>
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<div class="block">This common thread pool provides an abstraction to obtain a shared
thread pool, specifically the ForkJoinPool.commonPool, for all requests
of the maximum degree of parallelism.</div>
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<th class="colFirst" scope="row"><a href="DataConverter.html" title="class in org.apache.sysds.runtime.util">DataConverter</a></th>
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<div class="block">This class provides methods to read and write matrix blocks from to HDFS using different data formats.</div>
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<th class="colFirst" scope="row"><a href="EMAUtils.html" title="class in org.apache.sysds.runtime.util">EMAUtils</a></th>
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<th class="colFirst" scope="row"><a href="FastBufferedDataInputStream.html" title="class in org.apache.sysds.runtime.util">FastBufferedDataInputStream</a></th>
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<th class="colFirst" scope="row"><a href="FastBufferedDataOutputStream.html" title="class in org.apache.sysds.runtime.util">FastBufferedDataOutputStream</a></th>
<td class="colLast">
<div class="block">This buffered output stream is essentially a merged version of
BufferedOutputStream and DataOutputStream, wrt SystemDS requirements.</div>
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<th class="colFirst" scope="row"><a href="FastStringTokenizer.html" title="class in org.apache.sysds.runtime.util">FastStringTokenizer</a></th>
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<div class="block">This string tokenizer is essentially a simplified StringTokenizer.</div>
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<th class="colFirst" scope="row"><a href="HDFSTool.html" title="class in org.apache.sysds.runtime.util">HDFSTool</a></th>
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<th class="colFirst" scope="row"><a href="InputStreamInputFormat.html" title="class in org.apache.sysds.runtime.util">InputStreamInputFormat</a></th>
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<div class="block">Custom input format and record reader to redirect common implementation of csv read
over record readers (which are required for the parallel readers) to an input stream.</div>
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<th class="colFirst" scope="row"><a href="LongLongDoubleHashMap.html" title="class in org.apache.sysds.runtime.util">LongLongDoubleHashMap</a></th>
<td class="colLast">
<div class="block">This native long long - double hashmap is specifically designed for
ctable operations which only require addvalue - extract semantics.</div>
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<th class="colFirst" scope="row"><a href="NormalPRNGenerator.html" title="class in org.apache.sysds.runtime.util">NormalPRNGenerator</a></th>
<td class="colLast">
<div class="block">Class that can generate a stream of random numbers from standard
normal distribution N(0,1).</div>
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<th class="colFirst" scope="row"><a href="PoissonPRNGenerator.html" title="class in org.apache.sysds.runtime.util">PoissonPRNGenerator</a></th>
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<div class="block">Class that can generate a stream of random numbers from Poisson
distribution with specified mean.</div>
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<th class="colFirst" scope="row"><a href="PorterStemmer.html" title="class in org.apache.sysds.runtime.util">PorterStemmer</a></th>
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<div class="block">Stemmer, implementing the Porter Stemming Algorithm
The Stemmer class transforms a word into its root form.</div>
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<th class="colFirst" scope="row"><a href="ProgramConverter.html" title="class in org.apache.sysds.runtime.util">ProgramConverter</a></th>
<td class="colLast">
<div class="block">Program converter functionalities for
(1) creating deep copies of program blocks, instructions, function program blocks, and
(2) serializing and parsing of programs, program blocks, functions program blocks.</div>
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<th class="colFirst" scope="row"><a href="Py4jConverterUtils.html" title="class in org.apache.sysds.runtime.util">Py4jConverterUtils</a></th>
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<div class="block">Utils for converting python data to java.</div>
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<th class="colFirst" scope="row"><a href="RandNPair.html" title="class in org.apache.sysds.runtime.util">RandNPair</a></th>
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<div class="block">Class that generates a pair of random numbers from standard normal
distribution N(0,1).</div>
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<th class="colFirst" scope="row"><a href="SortUtils.html" title="class in org.apache.sysds.runtime.util">SortUtils</a></th>
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<div class="block">Utilities for sorting, primarily used for SparseRows.</div>
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