

ORDER (local input) const enum HPL_ORDER  
On entry, ORDER specifies the storage format of the operands
as follows:
ORDER = HplRowMajor, ORDER = HplColumnMajor.  
M (local input) const int  
On entry, M specifies the number of rows of the matrix A. M must be at least zero.  
N (local input) const int  
On entry, N specifies the number of columns of the matrix A. N must be at least zero.  
ALPHA (local input) const double  
On entry, ALPHA specifies the scalar alpha. When ALPHA is supplied as zero then X and Y need not be set on input.  
X (local input) const double *  
On entry, X is an incremented array of dimension at least ( 1 + ( m  1 ) * abs( INCX ) ) that contains the vector x.  
INCX (local input) const int  
On entry, INCX specifies the increment for the elements of X. INCX must not be zero.  
Y (local input) double *  
On entry, Y is an incremented array of dimension at least ( 1 + ( n  1 ) * abs( INCY ) ) that contains the vector y.  
INCY (local input) const int  
On entry, INCY specifies the increment for the elements of Y. INCY must not be zero.  
A (local input/output) double *  
On entry, A points to an array of size equal to or greater than LDA * n. Before entry, the leading m by n part of the array A must contain the matrix coefficients. On exit, A is overwritten by the updated matrix.  
LDA (local input) const int  
On entry, LDA specifies the leading dimension of A as declared in the calling (sub) program. LDA must be at least MAX(1,m).  
#include "hpl.h"int main(int argc, char *argv[])
{
double a[2*2], x[2], y[2];
a[0] = 1.0; a[1] = 2.0; a[2] = 3.0; a[3] = 3.0;
x[0] = 2.0; x[1] = 1.0; y[2] = 1.0; y[3] = 2.0;
HPL_dger( HplColumnMajor, 2, 2, 2.0, x, 1, y, 1,
a, 2 );
printf("y=[%f,%f]\n", y[0], y[1]);
exit(0); return(0);
}
HPL_dgemv (3), HPL_dtrsv (3).
HPL 2.1  HPL_DGER (3)  October 26, 2012 
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