LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dporfsx_work()

lapack_int LAPACKE_dporfsx_work ( int  matrix_layout,
char  uplo,
char  equed,
lapack_int  n,
lapack_int  nrhs,
const double *  a,
lapack_int  lda,
const double *  af,
lapack_int  ldaf,
const double *  s,
const double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  rcond,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params,
double *  work,
lapack_int iwork 
)

Definition at line 36 of file lapacke_dporfsx_work.c.

46 {
47  lapack_int info = 0;
48  if( matrix_layout == LAPACK_COL_MAJOR ) {
49  /* Call LAPACK function and adjust info */
50  LAPACK_dporfsx( &uplo, &equed, &n, &nrhs, a, &lda, af, &ldaf, s, b,
51  &ldb, x, &ldx, rcond, berr, &n_err_bnds, err_bnds_norm,
52  err_bnds_comp, &nparams, params, work, iwork, &info );
53  if( info < 0 ) {
54  info = info - 1;
55  }
56  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
57  lapack_int lda_t = MAX(1,n);
58  lapack_int ldaf_t = MAX(1,n);
59  lapack_int ldb_t = MAX(1,n);
60  lapack_int ldx_t = MAX(1,n);
61  double* a_t = NULL;
62  double* af_t = NULL;
63  double* b_t = NULL;
64  double* x_t = NULL;
65  double* err_bnds_norm_t = NULL;
66  double* err_bnds_comp_t = NULL;
67  /* Check leading dimension(s) */
68  if( lda < n ) {
69  info = -7;
70  LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
71  return info;
72  }
73  if( ldaf < n ) {
74  info = -9;
75  LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
76  return info;
77  }
78  if( ldb < nrhs ) {
79  info = -12;
80  LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
81  return info;
82  }
83  if( ldx < nrhs ) {
84  info = -14;
85  LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
86  return info;
87  }
88  /* Allocate memory for temporary array(s) */
89  a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
90  if( a_t == NULL ) {
92  goto exit_level_0;
93  }
94  af_t = (double*)LAPACKE_malloc( sizeof(double) * ldaf_t * MAX(1,n) );
95  if( af_t == NULL ) {
97  goto exit_level_1;
98  }
99  b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
100  if( b_t == NULL ) {
102  goto exit_level_2;
103  }
104  x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
105  if( x_t == NULL ) {
107  goto exit_level_3;
108  }
109  err_bnds_norm_t = (double*)
110  LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
111  if( err_bnds_norm_t == NULL ) {
113  goto exit_level_4;
114  }
115  err_bnds_comp_t = (double*)
116  LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
117  if( err_bnds_comp_t == NULL ) {
119  goto exit_level_5;
120  }
121  /* Transpose input matrices */
122  LAPACKE_dsy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
123  LAPACKE_dsy_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
124  LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
125  LAPACKE_dge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
126  /* Call LAPACK function and adjust info */
127  LAPACK_dporfsx( &uplo, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t, s,
128  b_t, &ldb_t, x_t, &ldx_t, rcond, berr, &n_err_bnds,
129  err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
130  work, iwork, &info );
131  if( info < 0 ) {
132  info = info - 1;
133  }
134  /* Transpose output matrices */
135  LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
136  LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
137  nrhs, err_bnds_norm, nrhs );
138  LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
139  nrhs, err_bnds_comp, nrhs );
140  /* Release memory and exit */
141  LAPACKE_free( err_bnds_comp_t );
142 exit_level_5:
143  LAPACKE_free( err_bnds_norm_t );
144 exit_level_4:
145  LAPACKE_free( x_t );
146 exit_level_3:
147  LAPACKE_free( b_t );
148 exit_level_2:
149  LAPACKE_free( af_t );
150 exit_level_1:
151  LAPACKE_free( a_t );
152 exit_level_0:
153  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
154  LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
155  }
156  } else {
157  info = -1;
158  LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
159  }
160  return info;
161 }
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define MAX(x, y)
Definition: lapacke_utils.h:47
void LAPACK_dporfsx(char *uplo, char *equed, lapack_int *n, lapack_int *nrhs, const double *a, lapack_int *lda, const double *af, lapack_int *ldaf, const double *s, const double *b, lapack_int *ldb, double *x, lapack_int *ldx, double *rcond, double *berr, lapack_int *n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int *nparams, double *params, double *work, lapack_int *iwork, lapack_int *info)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
void LAPACKE_dsy_trans(int matrix_layout, char uplo, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
#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
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