LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dsytrf_aa()

lapack_int LAPACKE_dsytrf_aa ( int  matrix_layout,
char  uplo,
lapack_int  n,
double *  a,
lapack_int  lda,
lapack_int ipiv 
)

Definition at line 36 of file lapacke_dsytrf_aa.c.

38 {
39  lapack_int info = 0;
40  lapack_int lwork = -1;
41  double* work = NULL;
42  double work_query;
43  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44  LAPACKE_xerbla( "LAPACKE_dsytrf_aa", -1 );
45  return -1;
46  }
47 #ifndef LAPACK_DISABLE_NAN_CHECK
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_dsy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
50  return -4;
51  }
52 #endif
53  /* Query optimal working array(s) size */
54  info = LAPACKE_dsytrf_aa_work( matrix_layout, uplo, n, a, lda, ipiv,
55  &work_query, lwork );
56  if( info != 0 ) {
57  goto exit_level_0;
58  }
59  lwork = (lapack_int)work_query;
60  /* Allocate memory for work arrays */
61  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
62  if( work == NULL ) {
64  goto exit_level_0;
65  }
66  /* Call middle-level interface */
67  info = LAPACKE_dsytrf_aa_work( matrix_layout, uplo, n, a, lda, ipiv, work,
68  lwork );
69  /* Release memory and exit */
70  LAPACKE_free( work );
71 exit_level_0:
72  if( info == LAPACK_WORK_MEMORY_ERROR ) {
73  LAPACKE_xerbla( "LAPACKE_dsytrf_aa", info );
74  }
75  return info;
76 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_dsytrf_aa_work(int matrix_layout, char uplo, lapack_int n, double *a, lapack_int lda, lapack_int *ipiv, double *work, lapack_int lwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_dsy_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
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