LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_cherfs_work.c
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function cherfs
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_cherfs_work( int matrix_layout, char uplo, lapack_int n,
37  lapack_int nrhs, const lapack_complex_float* a,
38  lapack_int lda, const lapack_complex_float* af,
39  lapack_int ldaf, const lapack_int* ipiv,
40  const lapack_complex_float* b, lapack_int ldb,
42  float* ferr, float* berr,
43  lapack_complex_float* work, float* rwork )
44 {
45  lapack_int info = 0;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_cherfs( &uplo, &n, &nrhs, a, &lda, af, &ldaf, ipiv, b, &ldb, x,
49  &ldx, ferr, berr, work, rwork, &info );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54  lapack_int lda_t = MAX(1,n);
55  lapack_int ldaf_t = MAX(1,n);
56  lapack_int ldb_t = MAX(1,n);
57  lapack_int ldx_t = MAX(1,n);
58  lapack_complex_float* a_t = NULL;
59  lapack_complex_float* af_t = NULL;
60  lapack_complex_float* b_t = NULL;
61  lapack_complex_float* x_t = NULL;
62  /* Check leading dimension(s) */
63  if( lda < n ) {
64  info = -6;
65  LAPACKE_xerbla( "LAPACKE_cherfs_work", info );
66  return info;
67  }
68  if( ldaf < n ) {
69  info = -8;
70  LAPACKE_xerbla( "LAPACKE_cherfs_work", info );
71  return info;
72  }
73  if( ldb < nrhs ) {
74  info = -11;
75  LAPACKE_xerbla( "LAPACKE_cherfs_work", info );
76  return info;
77  }
78  if( ldx < nrhs ) {
79  info = -13;
80  LAPACKE_xerbla( "LAPACKE_cherfs_work", info );
81  return info;
82  }
83  /* Allocate memory for temporary array(s) */
84  a_t = (lapack_complex_float*)
85  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
86  if( a_t == NULL ) {
88  goto exit_level_0;
89  }
90  af_t = (lapack_complex_float*)
91  LAPACKE_malloc( sizeof(lapack_complex_float) * ldaf_t * MAX(1,n) );
92  if( af_t == NULL ) {
94  goto exit_level_1;
95  }
96  b_t = (lapack_complex_float*)
98  ldb_t * MAX(1,nrhs) );
99  if( b_t == NULL ) {
101  goto exit_level_2;
102  }
103  x_t = (lapack_complex_float*)
105  ldx_t * MAX(1,nrhs) );
106  if( x_t == NULL ) {
108  goto exit_level_3;
109  }
110  /* Transpose input matrices */
111  LAPACKE_che_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
112  LAPACKE_che_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
113  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
114  LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
115  /* Call LAPACK function and adjust info */
116  LAPACK_cherfs( &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t, ipiv, b_t,
117  &ldb_t, x_t, &ldx_t, ferr, berr, work, rwork, &info );
118  if( info < 0 ) {
119  info = info - 1;
120  }
121  /* Transpose output matrices */
122  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
123  /* Release memory and exit */
124  LAPACKE_free( x_t );
125 exit_level_3:
126  LAPACKE_free( b_t );
127 exit_level_2:
128  LAPACKE_free( af_t );
129 exit_level_1:
130  LAPACKE_free( a_t );
131 exit_level_0:
132  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
133  LAPACKE_xerbla( "LAPACKE_cherfs_work", info );
134  }
135  } else {
136  info = -1;
137  LAPACKE_xerbla( "LAPACKE_cherfs_work", info );
138  }
139  return info;
140 }
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)
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)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
void LAPACK_cherfs(char *uplo, lapack_int *n, lapack_int *nrhs, const lapack_complex_float *a, lapack_int *lda, const lapack_complex_float *af, lapack_int *ldaf, const lapack_int *ipiv, const lapack_complex_float *b, lapack_int *ldb, lapack_complex_float *x, lapack_int *ldx, float *ferr, float *berr, lapack_complex_float *work, float *rwork, lapack_int *info)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_cherfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const lapack_complex_float *a, lapack_int lda, const lapack_complex_float *af, lapack_int ldaf, const lapack_int *ipiv, const lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *ferr, float *berr, lapack_complex_float *work, float *rwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123