chpmv - vector operation y := alpha*A*x + beta*y
SUBROUTINE CHPMV(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER*1 UPLO COMPLEX ALPHA, BETA COMPLEX A(*), X(*), Y(*) INTEGER N, INCX, INCY SUBROUTINE CHPMV_64(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER*1 UPLO COMPLEX ALPHA, BETA COMPLEX A(*), X(*), Y(*) INTEGER*8 N, INCX, INCY F95 INTERFACE SUBROUTINE HPMV(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: UPLO COMPLEX :: ALPHA, BETA COMPLEX, DIMENSION(:) :: A, X, Y INTEGER :: N, INCX, INCY SUBROUTINE HPMV_64(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: UPLO COMPLEX :: ALPHA, BETA COMPLEX, DIMENSION(:) :: A, X, Y INTEGER(8) :: N, INCX, INCY C INTERFACE #include <sunperf.h> void chpmv(char uplo, int n, complex *alpha, complex *a, complex *x, int incx, complex *beta, complex *y, int incy); void chpmv_64(char uplo, long n, complex *alpha, complex *a, complex *x, long incx, complex *beta, complex *y, long incy);
Oracle Solaris Studio Performance Library chpmv(3P) NAME chpmv - perform the matrix-vector operation y := alpha*A*x + beta*y SYNOPSIS SUBROUTINE CHPMV(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER*1 UPLO COMPLEX ALPHA, BETA COMPLEX A(*), X(*), Y(*) INTEGER N, INCX, INCY SUBROUTINE CHPMV_64(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER*1 UPLO COMPLEX ALPHA, BETA COMPLEX A(*), X(*), Y(*) INTEGER*8 N, INCX, INCY F95 INTERFACE SUBROUTINE HPMV(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: UPLO COMPLEX :: ALPHA, BETA COMPLEX, DIMENSION(:) :: A, X, Y INTEGER :: N, INCX, INCY SUBROUTINE HPMV_64(UPLO, N, ALPHA, A, X, INCX, BETA, Y, INCY) CHARACTER(LEN=1) :: UPLO COMPLEX :: ALPHA, BETA COMPLEX, DIMENSION(:) :: A, X, Y INTEGER(8) :: N, INCX, INCY C INTERFACE #include <sunperf.h> void chpmv(char uplo, int n, complex *alpha, complex *a, complex *x, int incx, complex *beta, complex *y, int incy); void chpmv_64(char uplo, long n, complex *alpha, complex *a, complex *x, long incx, complex *beta, complex *y, long incy); PURPOSE chpmv performs the matrix-vector operation y := alpha*A*x + beta*y where alpha and beta are scalars, x and y are n element vectors and A is an n by n hermitian matrix, supplied in packed form. ARGUMENTS UPLO (input) On entry, UPLO specifies whether the upper or lower triangu- lar part of the matrix A is supplied in the packed array A as follows: UPLO = 'U' or 'u' The upper triangular part of A is sup- plied in A. UPLO = 'L' or 'l' The lower triangular part of A is sup- plied in A. Unchanged on exit. N (input) On entry, N specifies the order of the matrix A. N >= 0. Unchanged on exit. ALPHA (input) On entry, ALPHA specifies the scalar alpha. Unchanged on exit. A (input) ( ( n*( n + 1 ) )/2 ). Before entry with UPLO = 'U' or 'u', the array A must contain the upper triangular part of the hermitian matrix packed sequentially, column by column, so that A( 1 ) contains a( 1, 1 ), A( 2 ) and A( 3 ) contain a( 1, 2 ) and a( 2, 2 ) respectively, and so on. Before entry with UPLO = 'L' or 'l', the array A must contain the lower triangular part of the hermitian matrix packed sequentially, column by column, so that A( 1 ) contains a( 1, 1 ), A( 2 ) and A( 3 ) contain a( 2, 1 ) and a( 3, 1 ) respectively, and so on. Note that the imaginary parts of the diagonal ele- ments need not be set and are assumed to be zero. Unchanged on exit. X (input) ( 1 + ( n - 1 )*abs( INCX ) ). Before entry, the incremented array X must contain the n element vector x. Unchanged on exit. INCX (input) On entry, INCX specifies the increment for the elements of X. INCX <> 0. 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 + ( n - 1 )*abs( INCY ) ). Before entry, the incremented array Y must contain the n element 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 <> 0. Unchanged on exit. 7 Nov 2015 chpmv(3P)