thorwin.math.accelerator

Class Blas

java.lang.Object

thorwin.math.accelerator.Blas

public final class Blas
extends java.lang.Object

Interface to native BLAS functions.

Constructor Summary

Constructors

Constructor and Description
Blas()

Method Summary

Modifier and Type	Method and Description
static void	daxpy(double da, double[] dx, double[] dy) BLAS DAXPY function call.
static void	dgemm(Order order, Transpose transa, Transpose transb, int m, int n, int k, double alpha, double[] a, double[] b, double beta, double[] c) BLAS DGEMM function call.

Methods inherited from class java.lang.Object

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

Constructor Detail

Blas

public Blas()

Method Detail

dgemm

public static void dgemm(Order order,
                         Transpose transa,
                         Transpose transb,
                         int m,
                         int n,
                         int k,
                         double alpha,
                         double[] a,
                         double[] b,
                         double beta,
                         double[] c)

BLAS DGEMM function call. alpha×op(a)× + beta×c

Parameters:

order - array pack order

transa - transpose state of matrix a

transb - transpose state of matrix b

m - row count of matrix a and c

n - column count of matrix b and c

k - column count of matrix a and row count of matrix b

alpha - scalar alpha

a - matrix a

b - matrix b

beta - scalar beta

c - matrix c, overwritten

daxpy

public static void daxpy(double da,
                         double[] dx,
                         double[] dy)

BLAS DAXPY function call. Calculates Y_out = A × X + Y

Parameters:

da - scale A

dx - input vector X

dy - input/out vector Y