org.apache.sysds.hops.estim

Class EstimatorBitsetMM.BitsetMatrix1

java.lang.Object

org.apache.sysds.hops.estim.EstimatorBitsetMM.BitsetMatrix

org.apache.sysds.hops.estim.EstimatorBitsetMM.BitsetMatrix1

Enclosing class:

EstimatorBitsetMM

public static class EstimatorBitsetMM.BitsetMatrix1
extends EstimatorBitsetMM.BitsetMatrix

This class represents a boolean matrix and provides key operations. In the interest of a cache-conscious matrix multiplication and reduced memory overhead, we use a linearized and padded array of longs instead of Java's BitSet per row (which causes memory overheads per row and does not allow for range ORs). However, this implies a maximum size of 16GB.

Constructor Summary

Constructors

Constructor and Description
BitsetMatrix1(int rlen, int clen)
BitsetMatrix1(MatrixBlock in)

Method Summary

Modifier and Type	Method and Description
EstimatorBitsetMM.BitsetMatrix	and(EstimatorBitsetMM.BitsetMatrix bsb)
EstimatorBitsetMM.BitsetMatrix	cbind(EstimatorBitsetMM.BitsetMatrix bsb)
EstimatorBitsetMM.BitsetMatrix	flip()
boolean	get(int r, int c)
EstimatorBitsetMM.BitsetMatrix	or(EstimatorBitsetMM.BitsetMatrix bsb)
EstimatorBitsetMM.BitsetMatrix	rbind(EstimatorBitsetMM.BitsetMatrix bsb)
void	set(int r, int c)

Methods inherited from class org.apache.sysds.hops.estim.EstimatorBitsetMM.BitsetMatrix

getNonZeros, getNumColumns, getNumRows, matMult, transpose

Methods inherited from class java.lang.Object

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

Constructor Detail

BitsetMatrix1

public BitsetMatrix1(int rlen,
                     int clen)

BitsetMatrix1

public BitsetMatrix1(MatrixBlock in)

Method Detail

and

public EstimatorBitsetMM.BitsetMatrix and(EstimatorBitsetMM.BitsetMatrix bsb)

or

public EstimatorBitsetMM.BitsetMatrix or(EstimatorBitsetMM.BitsetMatrix bsb)

rbind

public EstimatorBitsetMM.BitsetMatrix rbind(EstimatorBitsetMM.BitsetMatrix bsb)

cbind

public EstimatorBitsetMM.BitsetMatrix cbind(EstimatorBitsetMM.BitsetMatrix bsb)

flip

public EstimatorBitsetMM.BitsetMatrix flip()

set

public void set(int r,
                int c)

Specified by:

set in class EstimatorBitsetMM.BitsetMatrix

get

public boolean get(int r,
                   int c)

Specified by:

get in class EstimatorBitsetMM.BitsetMatrix