zla_porcond_x - compute the infinity norm condition number of op(A)*diag(x) for Hermitian positive-definite matrices
DOUBLE PRECISION FUNCTION ZLA_PORCOND_X(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) CHARACTER*1 UPLO INTEGER N, LDA, LDAF, INFO DOUBLE COMPLEX A(LDA,*), AF(LDAF,*), WORK(*), X(*) DOUBLE PRECISION RWORK(*) DOUBLE PRECISION FUNCTION ZLA_PORCOND_X_64(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) CHARACTER*1 UPLO INTEGER*8 N, LDA, LDAF, INFO DOUBLE COMPLEX A(LDA,*), AF(LDAF,*), WORK(*), X(*) DOUBLE PRECISION RWORK(*) F95 INTERFACE REAL(8) FUNCTION LA_PORCOND_X(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) INTEGER :: N, LDA, LDAF, INFO CHARACTER(LEN=1) :: UPLO COMPLEX(8), DIMENSION(:) :: X, WORK REAL(8), DIMENSION(:) :: RWORK COMPLEX(8), DIMENSION(:,:) :: A, AF REAL(8) FUNCTION LA_PORCOND_X_64(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) INTEGER(8) :: N, LDA, LDAF, INFO CHARACTER(LEN=1) :: UPLO COMPLEX(8), DIMENSION(:) :: X, WORK REAL(8), DIMENSION(:) :: RWORK COMPLEX(8), DIMENSION(:,:) :: A, AF C INTERFACE #include <sunperf.h> double zla_porcond_x (char uplo, int n, doublecomplex *a, int lda, dou- blecomplex *af, int ldaf, doublecomplex *x, int *info); double zla_porcond_x_64 (char uplo, long n, doublecomplex *a, long lda, doublecomplex *af, long ldaf, doublecomplex *x, long *info);
Oracle Solaris Studio Performance Library zla_porcond_x(3P) NAME zla_porcond_x - compute the infinity norm condition number of op(A)*diag(x) for Hermitian positive-definite matrices SYNOPSIS DOUBLE PRECISION FUNCTION ZLA_PORCOND_X(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) CHARACTER*1 UPLO INTEGER N, LDA, LDAF, INFO DOUBLE COMPLEX A(LDA,*), AF(LDAF,*), WORK(*), X(*) DOUBLE PRECISION RWORK(*) DOUBLE PRECISION FUNCTION ZLA_PORCOND_X_64(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) CHARACTER*1 UPLO INTEGER*8 N, LDA, LDAF, INFO DOUBLE COMPLEX A(LDA,*), AF(LDAF,*), WORK(*), X(*) DOUBLE PRECISION RWORK(*) F95 INTERFACE REAL(8) FUNCTION LA_PORCOND_X(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) INTEGER :: N, LDA, LDAF, INFO CHARACTER(LEN=1) :: UPLO COMPLEX(8), DIMENSION(:) :: X, WORK REAL(8), DIMENSION(:) :: RWORK COMPLEX(8), DIMENSION(:,:) :: A, AF REAL(8) FUNCTION LA_PORCOND_X_64(UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK) INTEGER(8) :: N, LDA, LDAF, INFO CHARACTER(LEN=1) :: UPLO COMPLEX(8), DIMENSION(:) :: X, WORK REAL(8), DIMENSION(:) :: RWORK COMPLEX(8), DIMENSION(:,:) :: A, AF C INTERFACE #include <sunperf.h> double zla_porcond_x (char uplo, int n, doublecomplex *a, int lda, dou- blecomplex *af, int ldaf, doublecomplex *x, int *info); double zla_porcond_x_64 (char uplo, long n, doublecomplex *a, long lda, doublecomplex *af, long ldaf, doublecomplex *x, long *info); PURPOSE zla_porcond_x Computes the infinity norm condition number of op(A) * diag(X) where X is a COMPLEX*16 vector. ARGUMENTS UPLO (input) UPLO is CHARACTER*1 = 'U': Upper triangle of A is stored; = 'L': Lower triangle of A is stored. N (input) N is INTEGER The number of linear equations, i.e., the order of the matrix A. N >= 0. A (input) A is COMPLEX*16 array, dimension (LDA,N) On entry, the N-by-N matrix A. LDA (input) LDA is INTEGER The leading dimension of the array A. LDA >= max(1,N). AF (input) AF is COMPLEX*16 array, dimension (LDAF,N) The triangular factor U or L from the Cholesky factorization A=U**H*U or A=L*L**H, as computed by ZPOTRF. LDAF (input) LDAF is INTEGER The leading dimension of the array AF. LDAF >= max(1,N). X (input) X is COMPLEX*16 array, dimension (N) The vector X in the formula op(A) * diag(X). INFO (output) INFO is INTEGER = 0: Successful exit. i > 0: The ith argument is invalid. WORK (input) WORK is COMPLEX*16 array, dimension (2*N). Workspace. RWORK (input) RWORK is DOUBLE PRECISION array, dimension (N). Workspace. 7 Nov 2015 zla_porcond_x(3P)