dtrmm - matrix operations B := alpha*op( A )*B, or B := alpha*B*op( A )
SUBROUTINE DTRMM(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER*1 SIDE, UPLO, TRANSA, DIAG INTEGER M, N, LDA, LDB DOUBLE PRECISION ALPHA DOUBLE PRECISION A(LDA,*), B(LDB,*) SUBROUTINE DTRMM_64(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER*1 SIDE, UPLO, TRANSA, DIAG INTEGER*8 M, N, LDA, LDB DOUBLE PRECISION ALPHA DOUBLE PRECISION A(LDA,*), B(LDB,*) F95 INTERFACE SUBROUTINE TRMM(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER(LEN=1) :: SIDE, UPLO, TRANSA, DIAG INTEGER :: M, N, LDA, LDB REAL(8) :: ALPHA REAL(8), DIMENSION(:,:) :: A, B SUBROUTINE TRMM_64(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER(LEN=1) :: SIDE, UPLO, TRANSA, DIAG INTEGER(8) :: M, N, LDA, LDB REAL(8) :: ALPHA REAL(8), DIMENSION(:,:) :: A, B C INTERFACE #include <sunperf.h> void dtrmm(char side, char uplo, char transa, char diag, int m, int n, double alpha, double *a, int lda, double *b, int ldb); void dtrmm_64(char side, char uplo, char transa, char diag, long m, long n, double alpha, double *a, long lda, double *b, long ldb);
Oracle Solaris Studio Performance Library dtrmm(3P) NAME dtrmm - perform one of the matrix-matrix operations B := alpha*op( A )*B, or B := alpha*B*op( A ) SYNOPSIS SUBROUTINE DTRMM(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER*1 SIDE, UPLO, TRANSA, DIAG INTEGER M, N, LDA, LDB DOUBLE PRECISION ALPHA DOUBLE PRECISION A(LDA,*), B(LDB,*) SUBROUTINE DTRMM_64(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER*1 SIDE, UPLO, TRANSA, DIAG INTEGER*8 M, N, LDA, LDB DOUBLE PRECISION ALPHA DOUBLE PRECISION A(LDA,*), B(LDB,*) F95 INTERFACE SUBROUTINE TRMM(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER(LEN=1) :: SIDE, UPLO, TRANSA, DIAG INTEGER :: M, N, LDA, LDB REAL(8) :: ALPHA REAL(8), DIMENSION(:,:) :: A, B SUBROUTINE TRMM_64(SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, LDA, B, LDB) CHARACTER(LEN=1) :: SIDE, UPLO, TRANSA, DIAG INTEGER(8) :: M, N, LDA, LDB REAL(8) :: ALPHA REAL(8), DIMENSION(:,:) :: A, B C INTERFACE #include <sunperf.h> void dtrmm(char side, char uplo, char transa, char diag, int m, int n, double alpha, double *a, int lda, double *b, int ldb); void dtrmm_64(char side, char uplo, char transa, char diag, long m, long n, double alpha, double *a, long lda, double *b, long ldb); PURPOSE dtrmm performs one of the matrix-matrix operations B := alpha*op( A )*B, or B := alpha*B*op( A ) where alpha is a scalar, B is an m by n matrix, A is a unit, or non-unit, upper or lower triangular matrix and op( A ) is one of op( A ) = A or op( A ) = A'. ARGUMENTS SIDE (input) On entry, SIDE specifies whether op( A ) multiplies B from the left or right as follows: SIDE = 'L' or 'l' B := alpha*op( A )*B. SIDE = 'R' or 'r' B := alpha*B*op( A ). Unchanged on exit. UPLO (input) On entry, UPLO specifies whether the matrix A is an upper or lower triangular matrix as follows: UPLO = 'U' or 'u' A is an upper triangular matrix. UPLO = 'L' or 'l' A is a lower triangular matrix. Unchanged on exit. TRANSA (input) On entry, TRANSA specifies the form of op( A ) to be used in the matrix multiplication as follows: TRANSA = 'N' or 'n' op( A ) = A. TRANSA = 'T' or 't' op( A ) = A'. TRANSA = 'C' or 'c' op( A ) = A'. Unchanged on exit. DIAG (input) On entry, DIAG specifies whether or not A is unit triangular as follows: DIAG = 'U' or 'u' A is assumed to be unit triangular. DIAG = 'N' or 'n' A is not assumed to be unit triangular. Unchanged on exit. M (input) On entry, M specifies the number of rows of B. M >= 0. Unchanged on exit. N (input) On entry, N specifies the number of columns of B. N >= 0. Unchanged on exit. ALPHA (input) On entry, ALPHA specifies the scalar alpha. When alpha is zero then A is not referenced and B need not be set before entry. Unchanged on exit. A (input) DOUBLE PRECISION array of DIMENSION ( LDA, k ), where k is m when SIDE = 'L' or 'l' and is n when SIDE = 'R' or 'r'. Before entry with UPLO = 'U' or 'u', 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. Before entry with UPLO = 'L' or 'l', 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 = 'U' or 'u', the diagonal elements of A are not referenced either, but are assumed to be one. Unchanged on exit. LDA (input) On entry, LDA specifies the first dimension of A as declared in the calling (sub) program. When SIDE = 'L' or 'l' then LDA >= max( 1, m ), when SIDE = 'R' or 'r' then LDA >= max( 1, n ). Unchanged on exit. B (input/output) DOUBLE PRECISION array of DIMENSION ( LDB, n ). Before entry, the leading m by n part of the array B must contain the matrix B, and on exit is overwritten by the trans- formed matrix. LDB (input) On entry, LDB specifies the first dimension of B as declared in the calling (sub) program. LDB >= max( 1, m ). Unchanged on exit. 7 Nov 2015 dtrmm(3P)