LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgerfsx_work()

lapack_int LAPACKE_cgerfsx_work ( int  matrix_layout,
char  trans,
char  equed,
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 float *  r,
const float *  c,
const lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  rcond,
float *  berr,
lapack_int  n_err_bnds,
float *  err_bnds_norm,
float *  err_bnds_comp,
lapack_int  nparams,
float *  params,
lapack_complex_float work,
float *  rwork 
)

Definition at line 36 of file lapacke_cgerfsx_work.c.

49 {
50  lapack_int info = 0;
51  if( matrix_layout == LAPACK_COL_MAJOR ) {
52  /* Call LAPACK function and adjust info */
53  LAPACK_cgerfsx( &trans, &equed, &n, &nrhs, a, &lda, af, &ldaf, ipiv, r,
54  c, b, &ldb, x, &ldx, rcond, berr, &n_err_bnds,
55  err_bnds_norm, err_bnds_comp, &nparams, params, work,
56  rwork, &info );
57  if( info < 0 ) {
58  info = info - 1;
59  }
60  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
61  lapack_int lda_t = MAX(1,n);
62  lapack_int ldaf_t = MAX(1,n);
63  lapack_int ldb_t = MAX(1,n);
64  lapack_int ldx_t = MAX(1,n);
65  lapack_complex_float* a_t = NULL;
66  lapack_complex_float* af_t = NULL;
67  lapack_complex_float* b_t = NULL;
68  lapack_complex_float* x_t = NULL;
69  float* err_bnds_norm_t = NULL;
70  float* err_bnds_comp_t = NULL;
71  /* Check leading dimension(s) */
72  if( lda < n ) {
73  info = -7;
74  LAPACKE_xerbla( "LAPACKE_cgerfsx_work", info );
75  return info;
76  }
77  if( ldaf < n ) {
78  info = -9;
79  LAPACKE_xerbla( "LAPACKE_cgerfsx_work", info );
80  return info;
81  }
82  if( ldb < nrhs ) {
83  info = -14;
84  LAPACKE_xerbla( "LAPACKE_cgerfsx_work", info );
85  return info;
86  }
87  if( ldx < nrhs ) {
88  info = -16;
89  LAPACKE_xerbla( "LAPACKE_cgerfsx_work", info );
90  return info;
91  }
92  /* Allocate memory for temporary array(s) */
93  a_t = (lapack_complex_float*)
94  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
95  if( a_t == NULL ) {
97  goto exit_level_0;
98  }
99  af_t = (lapack_complex_float*)
100  LAPACKE_malloc( sizeof(lapack_complex_float) * ldaf_t * MAX(1,n) );
101  if( af_t == NULL ) {
103  goto exit_level_1;
104  }
105  b_t = (lapack_complex_float*)
107  ldb_t * MAX(1,nrhs) );
108  if( b_t == NULL ) {
110  goto exit_level_2;
111  }
112  x_t = (lapack_complex_float*)
114  ldx_t * MAX(1,nrhs) );
115  if( x_t == NULL ) {
117  goto exit_level_3;
118  }
119  err_bnds_norm_t = (float*)
120  LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
121  if( err_bnds_norm_t == NULL ) {
123  goto exit_level_4;
124  }
125  err_bnds_comp_t = (float*)
126  LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
127  if( err_bnds_comp_t == NULL ) {
129  goto exit_level_5;
130  }
131  /* Transpose input matrices */
132  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
133  LAPACKE_cge_trans( matrix_layout, n, n, af, ldaf, af_t, ldaf_t );
134  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
135  LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
136  /* Call LAPACK function and adjust info */
137  LAPACK_cgerfsx( &trans, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
138  ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond, berr,
139  &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
140  params, work, rwork, &info );
141  if( info < 0 ) {
142  info = info - 1;
143  }
144  /* Transpose output matrices */
145  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
146  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
147  nrhs, err_bnds_norm, nrhs );
148  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
149  nrhs, err_bnds_comp, nrhs );
150  /* Release memory and exit */
151  LAPACKE_free( err_bnds_comp_t );
152 exit_level_5:
153  LAPACKE_free( err_bnds_norm_t );
154 exit_level_4:
155  LAPACKE_free( x_t );
156 exit_level_3:
157  LAPACKE_free( b_t );
158 exit_level_2:
159  LAPACKE_free( af_t );
160 exit_level_1:
161  LAPACKE_free( a_t );
162 exit_level_0:
163  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
164  LAPACKE_xerbla( "LAPACKE_cgerfsx_work", info );
165  }
166  } else {
167  info = -1;
168  LAPACKE_xerbla( "LAPACKE_cgerfsx_work", info );
169  }
170  return info;
171 }
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 LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACK_cgerfsx(char *trans, char *equed, 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 float *r, const float *c, const lapack_complex_float *b, lapack_int *ldb, lapack_complex_float *x, lapack_int *ldx, float *rcond, float *berr, lapack_int *n_err_bnds, float *err_bnds_norm, float *err_bnds_comp, lapack_int *nparams, float *params, lapack_complex_float *work, float *rwork, lapack_int *info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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