org.apache.sysds.runtime.util (Apache SystemDS 3.0.0 API)
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Package org.apache.sysds.runtime.util
Class Summary 
Class
Description
AutoDiff
 
BinaryBlockInputFormat
Custom binary block input format to return the custom record reader.
BinaryBlockRecordReader
Custom record reader for binary block.
ByteBufferDataInput
 
CollectionUtils
 
CommonThreadPool
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.
DataConverter
This class provides methods to read and write matrix blocks from to HDFS using different data formats.
DependencyTask<E>
 
DependencyThreadPool
 
DependencyWrapperTask<E>
 
DMVUtils
 
DnnUtils
 
EMAUtils
 
FastBufferedDataInputStream
 
FastBufferedDataOutputStream
This buffered output stream is essentially a merged version of
BufferedOutputStream and DataOutputStream, wrt SystemDS requirements.
FastStringTokenizer
This string tokenizer is essentially a simplified StringTokenizer.
HDFSTool
 
IndexRange
 
InputStreamInputFormat
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.
LocalFileUtils
 
LongLongDoubleHashMap
This native long long - double hashmap is specifically designed for
ctable operations which only require addvalue - extract semantics.
LongLongDoubleHashMap.ADoubleEntry
 
NormalPRNGenerator
Class that can generate a stream of random numbers from standard
normal distribution N(0,1).
PoissonPRNGenerator
Class that can generate a stream of random numbers from Poisson
distribution with specified mean.
PorterStemmer
Stemmer, implementing the Porter Stemming Algorithm
The Stemmer class transforms a word into its root form.
PRNGenerator
 
ProgramConverter
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.
Py4jConverterUtils
Utils for converting python data to java.
RandNPair
Class that generates a pair of random numbers from standard normal
distribution N(0,1).
SortUtils
Utilities for sorting, primarily used for SparseRows.
UniformPRNGenerator
 
UtilFunctions
 
Enum Summary 
Enum
Description
DMVUtils.LEVEL_ENUM
 
LongLongDoubleHashMap.EntryType
 
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