LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhetrf_aa_2stage_work()

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 
)

Definition at line 35 of file lapacke_zhetrf_aa_2stage_work.c.

40 {
41  lapack_int info = 0;
42  if( matrix_layout == LAPACK_COL_MAJOR ) {
43  /* Call LAPACK function and adjust info */
44  LAPACK_zhetrf_aa_2stage( &uplo, &n, a, &lda, tb,
45  &ltb, ipiv, ipiv2, work, &lwork,
46  &info );
47  if( info < 0 ) {
48  info = info - 1;
49  }
50  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
51  lapack_int lda_t = MAX(1,n);
52  lapack_complex_double* a_t = NULL;
53  lapack_complex_double* tb_t = NULL;
54  /* Check leading dimension(s) */
55  if( lda < n ) {
56  info = -6;
57  LAPACKE_xerbla( "LAPACKE_zhetrf_aa_2stage_work", info );
58  return info;
59  }
60  if( ltb < 4*n ) {
61  info = -8;
62  LAPACKE_xerbla( "LAPACKE_zhetrf_aa_2stage_work", info );
63  return info;
64  }
65  /* Query optimal working array(s) size if requested */
66  if( lwork == -1 ) {
67  LAPACK_zhetrf_aa_2stage( &uplo, &n, a, &lda_t,
68  tb, &ltb, ipiv, ipiv2, work,
69  &lwork, &info );
70  return (info < 0) ? (info - 1) : info;
71  }
72  /* Allocate memory for temporary array(s) */
73  a_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
74  if( a_t == NULL ) {
76  goto exit_level_0;
77  }
79  if( tb_t == NULL ) {
81  goto exit_level_1;
82  }
83  /* Transpose input matrices */
84  LAPACKE_zhe_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
85  /* Call LAPACK function and adjust info */
86  LAPACK_zhetrf_aa_2stage( &uplo, &n, a_t, &lda_t,
87  tb_t, &ltb, ipiv, ipiv2, work,
88  &lwork, &info );
89  if( info < 0 ) {
90  info = info - 1;
91  }
92  /* Transpose output matrices */
93  LAPACKE_zhe_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
94  /* Release memory and exit */
95  LAPACKE_free( tb_t );
96 exit_level_1:
97  LAPACKE_free( a_t );
98 exit_level_0:
99  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
100  LAPACKE_xerbla( "LAPACKE_zhetrf_aa_2stage_work", info );
101  }
102  } else {
103  info = -1;
104  LAPACKE_xerbla( "LAPACKE_zhetrf_aa_2stage_work", info );
105  }
106  return info;
107 }
#define LAPACK_zhetrf_aa_2stage(...)
Definition: lapack.h:7875
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_zhe_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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