LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chetrs_aa_2stage_work()

lapack_int LAPACKE_chetrs_aa_2stage_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float tb,
lapack_int  ltb,
lapack_int ipiv,
lapack_int ipiv2,
lapack_complex_float b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_chetrs_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_chetrs_aa_2stage( &uplo, &n, &nrhs, a, &lda, tb,
45  &ltb, ipiv, ipiv2, b, &ldb,
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_int ldb_t = MAX(1,n);
53  lapack_complex_float* a_t = NULL;
54  lapack_complex_float* tb_t = NULL;
55  lapack_complex_float* b_t = NULL;
56  /* Check leading dimension(s) */
57  if( lda < n ) {
58  info = -6;
59  LAPACKE_xerbla( "LAPACKE_chetrs_aa_2stage_work", info );
60  return info;
61  }
62  if( ltb < 4*n ) {
63  info = -8;
64  LAPACKE_xerbla( "LAPACKE_chetrs_aa_2stage_work", info );
65  return info;
66  }
67  if( ldb < nrhs ) {
68  info = -12;
69  LAPACKE_xerbla( "LAPACKE_chetrs_aa_2stage_work", info );
70  return info;
71  }
72  /* Allocate memory for temporary array(s) */
73  a_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * 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  b_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,nrhs) );
84  if( b_t == NULL ) {
86  goto exit_level_2;
87  }
88  /* Transpose input matrices */
89  LAPACKE_che_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
90  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
91  /* Call LAPACK function and adjust info */
92  LAPACK_chetrs_aa_2stage( &uplo, &n, &nrhs, a_t, &lda_t,
93  tb_t, &ltb, ipiv, ipiv2, b_t, &ldb_t, &info );
94  if( info < 0 ) {
95  info = info - 1;
96  }
97  /* Transpose output matrices */
98  LAPACKE_che_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
99  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
100  /* Release memory and exit */
101  LAPACKE_free( b_t );
102 exit_level_2:
103  LAPACKE_free( tb_t );
104 exit_level_1:
105  LAPACKE_free( a_t );
106 exit_level_0:
107  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
108  LAPACKE_xerbla( "LAPACKE_chetrs_aa_2stage_work", info );
109  }
110  } else {
111  info = -1;
112  LAPACKE_xerbla( "LAPACKE_chetrs_aa_2stage_work", info );
113  }
114  return info;
115 }
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
#define lapack_int
Definition: lapacke.h:47
void LAPACK_chetrs_aa_2stage(char *uplo, lapack_int *n, lapack_int *nrhs, lapack_complex_float *a, lapack_int *lda, lapack_complex_float *tb, lapack_int *ltb, lapack_int *ipiv, lapack_int *ipiv2, lapack_complex_float *b, lapack_int *ldb, lapack_int *info)
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
void LAPACKE_che_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#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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