LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dsysv_aa_2stage()

lapack_int LAPACKE_dsysv_aa_2stage ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
double *  a,
lapack_int  lda,
double *  tb,
lapack_int  ltb,
lapack_int ipiv,
lapack_int ipiv2,
double *  b,
lapack_int  ldb 
)

Definition at line 35 of file lapacke_dsysv_aa_2stage.c.

39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  double* work = NULL;
43  double work_query;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_dsysv_aa_2stage", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  if( LAPACKE_get_nancheck() ) {
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_dsy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
52  return -5;
53  }
54  if( LAPACKE_dge_nancheck( matrix_layout, 4*n, 1, tb, ltb ) ) {
55  return -7;
56  }
57  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
58  return -11;
59  }
60  }
61 #endif
62  /* Query optimal working array(s) size */
63  info = LAPACKE_dsysv_aa_2stage_work( matrix_layout, uplo, n, nrhs,
64  a, lda, tb, ltb, ipiv, ipiv2, b,
65  ldb, &work_query, lwork );
66  if( info != 0 ) {
67  goto exit_level_0;
68  }
69  lwork = (lapack_int)work_query;
70  /* Allocate memory for work arrays */
71  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
72  if( work == NULL ) {
74  goto exit_level_0;
75  }
76  /* Call middle-level interface */
77  info = LAPACKE_dsysv_aa_2stage_work( matrix_layout, uplo, n, nrhs,
78  a, lda, tb, ltb, ipiv, ipiv2, b,
79  ldb, work, lwork );
80  /* Release memory and exit */
81  LAPACKE_free( work );
82 exit_level_0:
83  if( info == LAPACK_WORK_MEMORY_ERROR ) {
84  LAPACKE_xerbla( "LAPACKE_dsysv_aa_2stage", info );
85  }
86  return info;
87 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
lapack_int LAPACKE_dsysv_aa_2stage_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *tb, lapack_int ltb, lapack_int *ipiv, lapack_int *ipiv2, double *b, lapack_int ldb, double *work, lapack_int lwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_dsy_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
Here is the call graph for this function: