LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
 All Classes Files Functions Variables Typedefs Macros
lapacke_ssysv.c File Reference
#include "lapacke_utils.h"
Include dependency graph for lapacke_ssysv.c:

Go to the source code of this file.

Functions

lapack_int LAPACKE_ssysv (int matrix_order, char uplo, lapack_int n, lapack_int nrhs, float *a, lapack_int lda, lapack_int *ipiv, float *b, lapack_int ldb)
 

Function Documentation

lapack_int LAPACKE_ssysv ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
float *  a,
lapack_int  lda,
lapack_int ipiv,
float *  b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_ssysv.c.

39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  float* work = NULL;
43  float work_query;
44  if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_ssysv", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  /* Optionally check input matrices for NaNs */
50  if( LAPACKE_ssy_nancheck( matrix_order, uplo, n, a, lda ) ) {
51  return -5;
52  }
53  if( LAPACKE_sge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
54  return -8;
55  }
56 #endif
57  /* Query optimal working array(s) size */
58  info = LAPACKE_ssysv_work( matrix_order, uplo, n, nrhs, a, lda, ipiv, b,
59  ldb, &work_query, lwork );
60  if( info != 0 ) {
61  goto exit_level_0;
62  }
63  lwork = (lapack_int)work_query;
64  /* Allocate memory for work arrays */
65  work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
66  if( work == NULL ) {
68  goto exit_level_0;
69  }
70  /* Call middle-level interface */
71  info = LAPACKE_ssysv_work( matrix_order, uplo, n, nrhs, a, lda, ipiv, b,
72  ldb, work, lwork );
73  /* Release memory and exit */
74  LAPACKE_free( work );
75 exit_level_0:
76  if( info == LAPACK_WORK_MEMORY_ERROR ) {
77  LAPACKE_xerbla( "LAPACKE_ssysv", info );
78  }
79  return info;
80 }
lapack_logical LAPACKE_ssy_nancheck(int matrix_order, char uplo, lapack_int n, const float *a, lapack_int lda)
lapack_int LAPACKE_ssysv_work(int matrix_order, char uplo, lapack_int n, lapack_int nrhs, float *a, lapack_int lda, lapack_int *ipiv, float *b, lapack_int ldb, float *work, lapack_int lwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
set ue cd $ADTTMP cat<< EOF > tmp f Program LinearEquations Implicit none Real b(3) integer i
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACKE_free(p)
Definition: lapacke.h:113
lapack_logical LAPACKE_sge_nancheck(int matrix_order, lapack_int m, lapack_int n, const float *a, lapack_int lda)
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
set ue cd $ADTTMP cat<< EOF > tmp c void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: xerbla-c:8
#define lapack_int
Definition: lapacke.h:47

Here is the call graph for this function: