LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhetrf_aa_2stage()

lapack_int LAPACKE_zhetrf_aa_2stage ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double tb,
lapack_int  ltb,
lapack_int ipiv,
lapack_int ipiv2 
)

Definition at line 35 of file lapacke_zhetrf_aa_2stage.c.

39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  lapack_complex_double* work = NULL;
43  lapack_complex_double work_query;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_zhetrf_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_zhe_nancheck( matrix_layout, uplo, n, a, lda ) ) {
52  return -5;
53  }
54  if( LAPACKE_zge_nancheck( matrix_layout, 4*n, 1, tb, ltb ) ) {
55  return -7;
56  }
57  }
58 #endif
59  /* Query optimal working array(s) size */
60  info = LAPACKE_zhetrf_aa_2stage_work( matrix_layout, uplo, n,
61  a, lda, tb, ltb, ipiv, ipiv2,
62  &work_query, lwork );
63  if( info != 0 ) {
64  goto exit_level_0;
65  }
66  lwork = LAPACK_Z2INT( work_query );
67  /* Allocate memory for work arrays */
68  work = (lapack_complex_double*)
69  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
70  if( work == NULL ) {
72  goto exit_level_0;
73  }
74  /* Call middle-level interface */
75  info = LAPACKE_zhetrf_aa_2stage_work( matrix_layout, uplo, n,
76  a, lda, tb, ltb, ipiv, ipiv2,
77  work, lwork );
78  /* Release memory and exit */
79  LAPACKE_free( work );
80 exit_level_0:
81  if( info == LAPACK_WORK_MEMORY_ERROR ) {
82  LAPACKE_xerbla( "LAPACKE_zhetrf_aa_2stage", info );
83  }
84  return info;
85 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#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
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACK_Z2INT(x)
Definition: lapacke.h:50
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_zhetrf_aa_2stage_work(int matrix_layout, char uplo, lapack_int n, lapack_complex_double *a, lapack_int lda, lapack_complex_double *tb, lapack_int ltb, lapack_int *ipiv, lapack_int *ipiv2, lapack_complex_double *work, lapack_int lwork)
void LAPACKE_xerbla(const char *name, lapack_int info)
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)
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