org.apache.sysml.runtime.matrix.data

Class RandomMatrixGenerator

java.lang.Object

org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator

public class RandomMatrixGenerator
extends Object

Constructor Summary

Constructors

Constructor and Description
RandomMatrixGenerator()
RandomMatrixGenerator(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf, int r, int c, int rpb, int cpb, double sp) Instantiates a Random number generator
RandomMatrixGenerator(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf, int r, int c, int rpb, int cpb, double sp, double min, double max) Instantiates a Random number generator
RandomMatrixGenerator(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf, int r, int c, int rpb, int cpb, double sp, double min, double max, double mean) Instantiates a Random number generator with a specific poisson mean
RandomMatrixGenerator(String pdfStr, int r, int c, int rpb, int cpb, double sp, double min, double max) Instantiates a Random number generator

Method Summary

Modifier and Type	Method and Description
void	init(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf, int r, int c, int rpb, int cpb, double sp, double min, double max) Initializes internal data structures.
void	init(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf, int r, int c, int rpb, int cpb, double sp, double min, double max, double mean) Instantiates a Random number generator with a specific poisson mean
protected void	setupValuePRNG()

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomMatrixGenerator

public RandomMatrixGenerator()

RandomMatrixGenerator

public RandomMatrixGenerator(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf,
                             int r,
                             int c,
                             int rpb,
                             int cpb,
                             double sp)
                      throws DMLRuntimeException

Instantiates a Random number generator

Parameters:

pdf - probability density function

r - number of rows

c - number of columns

rpb - rows per block

cpb - columns per block

sp - sparsity (0 = completely sparse, 1 = completely dense)

Throws:

DMLRuntimeException - if error

RandomMatrixGenerator

public RandomMatrixGenerator(String pdfStr,
                             int r,
                             int c,
                             int rpb,
                             int cpb,
                             double sp,
                             double min,
                             double max)
                      throws DMLRuntimeException

Instantiates a Random number generator

Parameters:

pdfStr - probability density function

r - number of rows

c - number of columns

rpb - rows per block

cpb - columns per block

sp - sparsity (0 = completely sparse, 1 = completely dense)

min - minimum of range of random numbers

max - maximum of range of random numbers

Throws:

DMLRuntimeException - if error

RandomMatrixGenerator

public RandomMatrixGenerator(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf,
                             int r,
                             int c,
                             int rpb,
                             int cpb,
                             double sp,
                             double min,
                             double max)
                      throws DMLRuntimeException

Instantiates a Random number generator

Parameters:

pdf - probability density function

r - number of rows

c - number of columns

rpb - rows per block

cpb - columns per block

sp - sparsity (0 = completely sparse, 1 = completely dense)

min - minimum of range of random numbers

max - maximum of range of random numbers

Throws:

DMLRuntimeException - if error

RandomMatrixGenerator

public RandomMatrixGenerator(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf,
                             int r,
                             int c,
                             int rpb,
                             int cpb,
                             double sp,
                             double min,
                             double max,
                             double mean)
                      throws DMLRuntimeException

Instantiates a Random number generator with a specific poisson mean

Parameters:

pdf - probability density function

r - number of rows

c - number of columns

rpb - rows per block

cpb - columns per block

sp - sparsity (0 = completely sparse, 1 = completely dense)

min - minimum of range of random numbers

max - maximum of range of random numbers

mean - the poisson mean

Throws:

DMLRuntimeException - if error

Method Detail

init

public void init(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf,
                 int r,
                 int c,
                 int rpb,
                 int cpb,
                 double sp,
                 double min,
                 double max)
          throws DMLRuntimeException

Initializes internal data structures. Called by Constructor

Parameters:

pdf - probability density function

r - number of rows

c - number of columns

rpb - rows per block

cpb - columns per block

sp - sparsity (0 = completely sparse, 1 = completely dense)

min - minimum of range of random numbers

max - maximum of range of random numbers

Throws:

DMLRuntimeException - if error

init

public void init(org.apache.sysml.runtime.matrix.data.RandomMatrixGenerator.PDF pdf,
                 int r,
                 int c,
                 int rpb,
                 int cpb,
                 double sp,
                 double min,
                 double max,
                 double mean)
          throws DMLRuntimeException

Instantiates a Random number generator with a specific poisson mean

Parameters:

pdf - probability density function

r - number of rows

c - number of columns

rpb - rows per block

cpb - columns per block

sp - sparsity (0 = completely sparse, 1 = completely dense)

min - minimum of range of random numbers

max - maximum of range of random numbers

mean - the poisson mean

Throws:

DMLRuntimeException - if error

setupValuePRNG

protected void setupValuePRNG()
                       throws DMLRuntimeException

Throws:

DMLRuntimeException