org.apache.sysml.runtime.matrix.data

Class SparseBlockFactory

java.lang.Object

org.apache.sysml.runtime.matrix.data.SparseBlockFactory

public abstract class SparseBlockFactory
extends Object

Constructor Summary

Constructors

Constructor and Description
SparseBlockFactory()

Method Summary

Modifier and Type	Method and Description
static SparseBlock	copySparseBlock(SparseBlock.Type type, SparseBlock sblock, boolean forceCopy)
static SparseBlock	createSparseBlock(int rlen)
static SparseBlock	createSparseBlock(SparseBlock.Type type, int rlen)
static long	estimateSizeSparseInMemory(SparseBlock.Type type, long nrows, long ncols, double sparsity)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SparseBlockFactory

public SparseBlockFactory()

Method Detail

createSparseBlock

public static SparseBlock createSparseBlock(int rlen)

createSparseBlock

public static SparseBlock createSparseBlock(SparseBlock.Type type,
                                            int rlen)

copySparseBlock

public static SparseBlock copySparseBlock(SparseBlock.Type type,
                                          SparseBlock sblock,
                                          boolean forceCopy)

estimateSizeSparseInMemory

public static long estimateSizeSparseInMemory(SparseBlock.Type type,
                                              long nrows,
                                              long ncols,
                                              double sparsity)