

ORDER (local input) const enum HPL_ORDER  
On entry, ORDER specifies the storage format of the operands
as follows:
ORDER = HplRowMajor, ORDER = HplColumnMajor.  
SIDE (local input) const enum HPL_SIDE  
On entry, SIDE specifies whether op(A) appears on the left
or right of X as follows:
SIDE==HplLeft op( A ) * X = alpha * B, SIDE==HplRight X * op( A ) = alpha * B.  
UPLO (local input) const enum HPL_UPLO  
On entry, UPLO specifies whether the upper or lower triangular part of the array A is to be referenced. When UPLO==HplUpper, only the upper triangular part of A is to be referenced, otherwise only the lower triangular part of A is to be referenced.  
TRANS (local input) const enum HPL_TRANS  
On entry, TRANSA specifies the form of op(A) to be used in
the matrixmatrix operation follows:
TRANSA==HplNoTrans : op( A ) = A, TRANSA==HplTrans : op( A ) = A^T, TRANSA==HplConjTrans : op( A ) = A^T.  
DIAG (local input) const enum HPL_DIAG  
On entry, DIAG specifies whether A is unit triangular or not. When DIAG==HplUnit, A is assumed to be unit triangular, and otherwise, A is not assumed to be unit triangular.  
M (local input) const int  
On entry, M specifies the number of rows of the matrix B. M must be at least zero.  
N (local input) const int  
On entry, N specifies the number of columns of the matrix B. 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 the elements of the matrix B need not be set on input.  
A (local input) const double *  
On entry, A points to an array of size equal to or greater
than LDA * k, where k is m when SIDE==HplLeft and is n
otherwise. Before entry with UPLO==HplUpper, the leading
k by k upper triangular part of the array A must contain the
upper triangular matrix and the strictly lower triangular
part of A is not referenced. When UPLO==HplLower on entry,
the leading k by k lower triangular part of the array A must
contain the lower triangular matrix and the strictly upper
triangular part of A is not referenced.
Note that when DIAG==HplUnit, the diagonal elements of A not referenced either, but are assumed to be unity.  
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) when SIDE==HplLeft, and MAX(1,n) otherwise.  
B (local input/output) double *  
On entry, B points to an array of size equal to or greater than LDB * n. Before entry, the leading m by n part of the array B must contain the matrix B, except when beta is zero, in which case B need not be set on entry. On exit, the array B is overwritten by the m by n solution matrix.  
LDB (local input) const int  
On entry, LDB specifies the leading dimension of B as declared in the calling (sub) program. LDB must be at least MAX(1,m).  
#include "hpl.h"int main(int argc, char *argv[])
{
double a[2*2], b[2*2];
a[0] = 4.0; a[1] = 1.0; a[2] = 2.0; a[3] = 5.0;
b[0] = 2.0; b[1] = 1.0; b[2] = 1.0; b[3] = 2.0;
HPL_dtrsm( HplColumnMajor, HplLeft, HplUpper,
HplNoTrans, HplNonUnit, 2, 2, 2.0,
a, 2, b, 2 );
printf(" [%f,%f]\n", b[0], b[2]);
printf("b=[%f,%f]\n", b[1], b[3]);
exit(0); return(0);
}
HPL_dgemm (3).
HPL 2.1  HPL_DTRSM (3)  October 26, 2012 
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.