LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapack_int LAPACKE_sgesvxx_work ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  nrhs,
float *  a,
lapack_int  lda,
float *  af,
lapack_int  ldaf,
lapack_int *  ipiv,
char *  equed,
float *  r,
float *  c,
float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  rcond,
float *  rpvgrw,
float *  berr,
lapack_int  n_err_bnds,
float *  err_bnds_norm,
float *  err_bnds_comp,
lapack_int  nparams,
float *  params,
float *  work,
lapack_int *  iwork 
)

Definition at line 36 of file lapacke_sgesvxx_work.c.

46 {
47  lapack_int info = 0;
48  if( matrix_layout == LAPACK_COL_MAJOR ) {
49  /* Call LAPACK function and adjust info */
50  LAPACK_sgesvxx( &fact, &trans, &n, &nrhs, a, &lda, af, &ldaf, ipiv,
51  equed, r, c, b, &ldb, x, &ldx, rcond, rpvgrw, berr,
52  &n_err_bnds, err_bnds_norm, err_bnds_comp, &nparams,
53  params, work, iwork, &info );
54  if( info < 0 ) {
55  info = info - 1;
56  }
57  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
58  lapack_int lda_t = MAX(1,n);
59  lapack_int ldaf_t = MAX(1,n);
60  lapack_int ldb_t = MAX(1,n);
61  lapack_int ldx_t = MAX(1,n);
62  float* a_t = NULL;
63  float* af_t = NULL;
64  float* b_t = NULL;
65  float* x_t = NULL;
66  float* err_bnds_norm_t = NULL;
67  float* err_bnds_comp_t = NULL;
68  /* Check leading dimension(s) */
69  if( lda < n ) {
70  info = -7;
71  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
72  return info;
73  }
74  if( ldaf < n ) {
75  info = -9;
76  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
77  return info;
78  }
79  if( ldb < nrhs ) {
80  info = -15;
81  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
82  return info;
83  }
84  if( ldx < nrhs ) {
85  info = -17;
86  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
87  return info;
88  }
89  /* Allocate memory for temporary array(s) */
90  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
91  if( a_t == NULL ) {
92  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
93  goto exit_level_0;
94  }
95  af_t = (float*)LAPACKE_malloc( sizeof(float) * ldaf_t * MAX(1,n) );
96  if( af_t == NULL ) {
97  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
98  goto exit_level_1;
99  }
100  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
101  if( b_t == NULL ) {
102  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
103  goto exit_level_2;
104  }
105  x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
106  if( x_t == NULL ) {
107  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
108  goto exit_level_3;
109  }
110  err_bnds_norm_t = (float*)
111  LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
112  if( err_bnds_norm_t == NULL ) {
113  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
114  goto exit_level_4;
115  }
116  err_bnds_comp_t = (float*)
117  LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
118  if( err_bnds_comp_t == NULL ) {
119  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
120  goto exit_level_5;
121  }
122  /* Transpose input matrices */
123  LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
124  if( LAPACKE_lsame( fact, 'f' ) ) {
125  LAPACKE_sge_trans( matrix_layout, n, n, af, ldaf, af_t, ldaf_t );
126  }
127  LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
128  /* Call LAPACK function and adjust info */
129  LAPACK_sgesvxx( &fact, &trans, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
130  ipiv, equed, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond,
131  rpvgrw, berr, &n_err_bnds, err_bnds_norm_t,
132  err_bnds_comp_t, &nparams, params, work, iwork, &info );
133  if( info < 0 ) {
134  info = info - 1;
135  }
136  /* Transpose output matrices */
137  if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
138  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
139  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
140  }
141  if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
142  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, af_t, ldaf_t, af, ldaf );
143  }
144  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
145  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
146  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
147  }
148  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
149  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
150  nrhs, err_bnds_norm, n_err_bnds );
151  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
152  nrhs, err_bnds_comp, n_err_bnds );
153  /* Release memory and exit */
154  LAPACKE_free( err_bnds_comp_t );
155 exit_level_5:
156  LAPACKE_free( err_bnds_norm_t );
157 exit_level_4:
158  LAPACKE_free( x_t );
159 exit_level_3:
160  LAPACKE_free( b_t );
161 exit_level_2:
162  LAPACKE_free( af_t );
163 exit_level_1:
164  LAPACKE_free( a_t );
165 exit_level_0:
166  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
167  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
168  }
169  } else {
170  info = -1;
171  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
172  }
173  return info;
174 }
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
LAPACKE_sge_trans
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
Definition: lapacke_sge_trans.c:40
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:47
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:113
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
LAPACK_sgesvxx
void LAPACK_sgesvxx(char *fact, char *trans, lapack_int *n, lapack_int *nrhs, float *a, lapack_int *lda, float *af, lapack_int *ldaf, lapack_int *ipiv, char *equed, float *r, float *c, float *b, lapack_int *ldb, float *x, lapack_int *ldx, float *rcond, float *rpvgrw, float *berr, lapack_int *n_err_bnds, float *err_bnds_norm, float *err_bnds_comp, lapack_int *nparams, float *params, float *work, lapack_int *iwork, lapack_int *info)
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:37
lapack_int
#define lapack_int
Definition: lapacke.h:47
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123

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