ssytrs_rook - solve a system of linear equations A*X = B with a real symmetric matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by SSYTRF_ROOK
SUBROUTINE SSYTRS_ROOK(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER*1 UPLO INTEGER N, NRHS, LDA, LDB, INFO INTEGER IPIV(*) REAL A(LDA,*), B(LDB,*) SUBROUTINE SSYTRS_ROOK_64(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER*1 UPLO INTEGER*8 N, NRHS, LDA, LDB, INFO INTEGER*8 IPIV(*) REAL A(LDA,*), B(LDB,*) F95 INTERFACE SUBROUTINE SYTRS_ROOK(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO INTEGER :: N, NRHS, LDA, LDB, INFO INTEGER, DIMENSION(:) :: IPIV REAL, DIMENSION(:,:) :: A, B SUBROUTINE SYTRS_ROOK_64(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO INTEGER(8) :: N, NRHS, LDA, LDB, INFO INTEGER(8), DIMENSION(:) :: IPIV REAL, DIMENSION(:,:) :: A, B C INTERFACE #include <sunperf.h> void ssytrs_rook(char uplo, int n, int nrhs, float *a, int lda, int *ipiv, float *b, int ldb, int *info); void ssytrs_rook_64(char uplo, long n, long nrhs, float *a, long lda, long *ipiv, float *b, long ldb, long *info);
Oracle Solaris Studio Performance Library ssytrs_rook(3P) NAME ssytrs_rook - solve a system of linear equations A*X = B with a real symmetric matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by SSYTRF_ROOK SYNOPSIS SUBROUTINE SSYTRS_ROOK(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER*1 UPLO INTEGER N, NRHS, LDA, LDB, INFO INTEGER IPIV(*) REAL A(LDA,*), B(LDB,*) SUBROUTINE SSYTRS_ROOK_64(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER*1 UPLO INTEGER*8 N, NRHS, LDA, LDB, INFO INTEGER*8 IPIV(*) REAL A(LDA,*), B(LDB,*) F95 INTERFACE SUBROUTINE SYTRS_ROOK(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO INTEGER :: N, NRHS, LDA, LDB, INFO INTEGER, DIMENSION(:) :: IPIV REAL, DIMENSION(:,:) :: A, B SUBROUTINE SYTRS_ROOK_64(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO) CHARACTER(LEN=1) :: UPLO INTEGER(8) :: N, NRHS, LDA, LDB, INFO INTEGER(8), DIMENSION(:) :: IPIV REAL, DIMENSION(:,:) :: A, B C INTERFACE #include <sunperf.h> void ssytrs_rook(char uplo, int n, int nrhs, float *a, int lda, int *ipiv, float *b, int ldb, int *info); void ssytrs_rook_64(char uplo, long n, long nrhs, float *a, long lda, long *ipiv, float *b, long ldb, long *info); PURPOSE ssytrs_rook solves a system of linear equations A*X = B with a real symmetric matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by SSYTRF_ROOK. 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**T; = 'L': Lower triangular, form is A = L*D*L**T. 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) The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by SSYTRF_ROOK. LDA (input) The leading dimension of the array A. LDA >= max(1,N). IPIV (input) Details of the interchanges and the block structure of D as determined by SSYTRF_ROOK. B (input/output) 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 ssytrs_rook(3P)