zgemv - vector operations y := alpha*A*x + beta*y, or y := alpha*A'*x + beta*y, or y := alpha*conjg( A' )*x + beta*y
SUBROUTINE ZGEMV(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER*1 TRANSA DOUBLE COMPLEX ALPHA, BETA DOUBLE COMPLEX A(LDA,*), X(*), Y(*) INTEGER M, N, LDA, INCX, INCY SUBROUTINE ZGEMV_64(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER*1 TRANSA DOUBLE COMPLEX ALPHA, BETA DOUBLE COMPLEX A(LDA,*), X(*), Y(*) INTEGER*8 M, N, LDA, INCX, INCY F95 INTERFACE SUBROUTINE GEMV(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: TRANSA COMPLEX(8) :: ALPHA, BETA COMPLEX(8), DIMENSION(:) :: X, Y COMPLEX(8), DIMENSION(:,:) :: A INTEGER :: M, N, LDA, INCX, INCY SUBROUTINE GEMV_64(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: TRANSA COMPLEX(8) :: ALPHA, BETA COMPLEX(8), DIMENSION(:) :: X, Y COMPLEX(8), DIMENSION(:,:) :: A INTEGER(8) :: M, N, LDA, INCX, INCY C INTERFACE #include <sunperf.h> void zgemv(char transa, int m, int n, doublecomplex *alpha, doublecom- plex *a, int lda, doublecomplex *x, int incx, doublecomplex *beta, doublecomplex *y, int incy); void zgemv_64(char transa, long m, long n, doublecomplex *alpha, dou- blecomplex *a, long lda, doublecomplex *x, long incx, double- complex *beta, doublecomplex *y, long incy);
Oracle Solaris Studio Performance Library zgemv(3P) NAME zgemv - perform one of the matrix-vector operations y := alpha*A*x + beta*y, or y := alpha*A'*x + beta*y, or y := alpha*conjg( A' )*x + beta*y SYNOPSIS SUBROUTINE ZGEMV(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER*1 TRANSA DOUBLE COMPLEX ALPHA, BETA DOUBLE COMPLEX A(LDA,*), X(*), Y(*) INTEGER M, N, LDA, INCX, INCY SUBROUTINE ZGEMV_64(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER*1 TRANSA DOUBLE COMPLEX ALPHA, BETA DOUBLE COMPLEX A(LDA,*), X(*), Y(*) INTEGER*8 M, N, LDA, INCX, INCY F95 INTERFACE SUBROUTINE GEMV(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: TRANSA COMPLEX(8) :: ALPHA, BETA COMPLEX(8), DIMENSION(:) :: X, Y COMPLEX(8), DIMENSION(:,:) :: A INTEGER :: M, N, LDA, INCX, INCY SUBROUTINE GEMV_64(TRANSA, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: TRANSA COMPLEX(8) :: ALPHA, BETA COMPLEX(8), DIMENSION(:) :: X, Y COMPLEX(8), DIMENSION(:,:) :: A INTEGER(8) :: M, N, LDA, INCX, INCY C INTERFACE #include <sunperf.h> void zgemv(char transa, int m, int n, doublecomplex *alpha, doublecom- plex *a, int lda, doublecomplex *x, int incx, doublecomplex *beta, doublecomplex *y, int incy); void zgemv_64(char transa, long m, long n, doublecomplex *alpha, dou- blecomplex *a, long lda, doublecomplex *x, long incx, double- complex *beta, doublecomplex *y, long incy); PURPOSE zgemv performs one of the matrix-vector operations y := alpha*A*x + beta*y, or y := alpha*A'*x + beta*y, or y := alpha*conjg( A' )*x + beta*y where alpha and beta are scalars, x and y are vectors and A is an m by n matrix. ARGUMENTS TRANSA (input) On entry, TRANSA specifies the operation to be performed as follows: TRANSA = 'N' or 'n' y := alpha*A*x + beta*y. TRANSA = 'T' or 't' y := alpha*A'*x + beta*y. TRANSA = 'C' or 'c' y := alpha*conjg( A' )*x + beta*y. Unchanged on exit. M (input) On entry, M specifies the number of rows of the matrix A. M >= 0. Unchanged on exit. N (input) On entry, N specifies the number of columns of the matrix A. N >= 0. Unchanged on exit. ALPHA (input) On entry, ALPHA specifies the scalar alpha. Unchanged on exit. A (input) Before entry, the leading m by n part of the array A must contain the matrix of coefficients. Unchanged on exit. LDA (input) On entry, LDA specifies the first dimension of A as declared in the calling (sub) program. LDA >= max( 1, m ). Unchanged on exit. X (input) ( 1 + ( n - 1 )*abs( INCX ) ) when TRANSA = 'N' or 'n' and at least ( 1 + ( m - 1 )*abs( INCX ) ) otherwise. Before entry, the incremented array X must contain the vector x. Unchanged on exit. INCX (input) On entry, INCX specifies the increment for the elements of X. INCX must not be zero. Unchanged on exit. BETA (input) On entry, BETA specifies the scalar beta. When BETA is sup- plied as zero then Y need not be set on input. Unchanged on exit. Y (input/output) ( 1 + ( m - 1 )*abs( INCY ) ) when TRANSA = 'N' or 'n' and at least ( 1 + ( n - 1 )*abs( INCY ) ) otherwise. Before entry with BETA non-zero, the incremented array Y must contain the vector y. On exit, Y is overwritten by the updated vector y. INCY (input) On entry, INCY specifies the increment for the elements of Y. INCY must not be zero. Unchanged on exit. 7 Nov 2015 zgemv(3P)