LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhesv_aa_2stage()

lapack_int LAPACKE_zhesv_aa_2stage ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double tb,
lapack_int  ltb,
lapack_int ipiv,
lapack_int ipiv2,
lapack_complex_double b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_zhesv_aa_2stage.c.

41 {
42  lapack_int info = 0;
43  lapack_int lwork = -1;
44  lapack_complex_double* work = NULL;
45  lapack_complex_double work_query;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_zhesv_aa_2stage", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_zhe_nancheck( matrix_layout, uplo, n, a, lda ) ) {
54  return -5;
55  }
56  if( LAPACKE_zge_nancheck( matrix_layout, 4*n, 1, tb, ltb ) ) {
57  return -7;
58  }
59  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
60  return -11;
61  }
62  }
63 #endif
64  /* Query optimal working array(s) size */
65  info = LAPACKE_zhesv_aa_2stage_work( matrix_layout, uplo, n, nrhs,
66  a, lda, tb, ltb, ipiv, ipiv2, b,
67  ldb, &work_query, lwork );
68  if( info != 0 ) {
69  goto exit_level_0;
70  }
71  lwork = LAPACK_Z2INT( work_query );
72  /* Allocate memory for work arrays */
73  work = (lapack_complex_double*)
74  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
75  if( work == NULL ) {
77  goto exit_level_0;
78  }
79  /* Call middle-level interface */
80  info = LAPACKE_zhesv_aa_2stage_work( matrix_layout, uplo, n, nrhs,
81  a, lda, tb, ltb, ipiv, ipiv2, b,
82  ldb, work, lwork );
83  /* Release memory and exit */
84  LAPACKE_free( work );
85 exit_level_0:
86  if( info == LAPACK_WORK_MEMORY_ERROR ) {
87  LAPACKE_xerbla( "LAPACKE_zhesv_aa_2stage", info );
88  }
89  return info;
90 }
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_logical LAPACKE_zhe_nancheck(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *a, lapack_int lda)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
int LAPACKE_get_nancheck()
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define lapack_complex_double
Definition: lapacke.h:90
#define LAPACK_Z2INT(x)
Definition: lapacke.h:117
lapack_int LAPACKE_zhesv_aa_2stage_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, lapack_complex_double *a, lapack_int lda, lapack_complex_double *tb, lapack_int ltb, lapack_int *ipiv, lapack_int *ipiv2, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *work, lapack_int lwork)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACKE_xerbla(const char *name, lapack_int info)
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