chptrs - mitian matrix A stored in packed format using the factorization A = U*D*U**H or A = L*D*L**H computed by CHPTRF
SUBROUTINE CHPTRS(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER*1 UPLO COMPLEX A(*), B(LDB,*) INTEGER N, NRHS, LDB, INFO INTEGER IPIVOT(*) SUBROUTINE CHPTRS_64(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER*1 UPLO COMPLEX A(*), B(LDB,*) INTEGER*8 N, NRHS, LDB, INFO INTEGER*8 IPIVOT(*) F95 INTERFACE SUBROUTINE HPTRS(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO COMPLEX, DIMENSION(:) :: A COMPLEX, DIMENSION(:,:) :: B INTEGER :: N, NRHS, LDB, INFO INTEGER, DIMENSION(:) :: IPIVOT SUBROUTINE HPTRS_64(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO COMPLEX, DIMENSION(:) :: A COMPLEX, DIMENSION(:,:) :: B INTEGER(8) :: N, NRHS, LDB, INFO INTEGER(8), DIMENSION(:) :: IPIVOT C INTERFACE #include <sunperf.h> void chptrs(char uplo, int n, int nrhs, complex *a, int *ipivot, com- plex *b, int ldb, int *info); void chptrs_64(char uplo, long n, long nrhs, complex *a, long *ipivot, complex *b, long ldb, long *info);
Oracle Solaris Studio Performance Library chptrs(3P) NAME chptrs - solve a system of linear equations A*X = B with a complex Her- mitian matrix A stored in packed format using the factorization A = U*D*U**H or A = L*D*L**H computed by CHPTRF SYNOPSIS SUBROUTINE CHPTRS(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER*1 UPLO COMPLEX A(*), B(LDB,*) INTEGER N, NRHS, LDB, INFO INTEGER IPIVOT(*) SUBROUTINE CHPTRS_64(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER*1 UPLO COMPLEX A(*), B(LDB,*) INTEGER*8 N, NRHS, LDB, INFO INTEGER*8 IPIVOT(*) F95 INTERFACE SUBROUTINE HPTRS(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO COMPLEX, DIMENSION(:) :: A COMPLEX, DIMENSION(:,:) :: B INTEGER :: N, NRHS, LDB, INFO INTEGER, DIMENSION(:) :: IPIVOT SUBROUTINE HPTRS_64(UPLO, N, NRHS, A, IPIVOT, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO COMPLEX, DIMENSION(:) :: A COMPLEX, DIMENSION(:,:) :: B INTEGER(8) :: N, NRHS, LDB, INFO INTEGER(8), DIMENSION(:) :: IPIVOT C INTERFACE #include <sunperf.h> void chptrs(char uplo, int n, int nrhs, complex *a, int *ipivot, com- plex *b, int ldb, int *info); void chptrs_64(char uplo, long n, long nrhs, complex *a, long *ipivot, complex *b, long ldb, long *info); PURPOSE chptrs solves a system of linear equations A*X = B with a complex Her- mitian matrix A stored in packed format using the factorization A = U*D*U**H or A = L*D*L**H computed by CHPTRF. ARGUMENTS UPLO (input) Specifies whether the details of the factorization are stored as an upper or lower triangular matrix. = 'U': Upper trian- gular, form is A = U*D*U**H; = 'L': Lower triangular, form is A = L*D*L**H. N (input) The order of the matrix A. N >= 0. NRHS (input) The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0. A (input) COMPLEX array, dimension (N*(N+1)/2) The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by CHPTRF, stored as a packed triangular matrix. IPIVOT (input) INTEGER array, dimension (N) Details of the interchanges and the block structure of D as determined by CHPTRF. B (input/output) COMPLEX array, dimension (LDB,NRHS) On entry, the right hand side matrix B. On exit, the solu- tion matrix X. LDB (input) The leading dimension of the array B. LDB >= max(1,N). INFO (output) = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value 7 Nov 2015 chptrs(3P)