LAPACK  3.9.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sgesvxx_work()

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 35 of file lapacke_sgesvxx_work.c.

45 {
46  lapack_int info = 0;
47  if( matrix_layout == LAPACK_COL_MAJOR ) {
48  /* Call LAPACK function and adjust info */
49  LAPACK_sgesvxx( &fact, &trans, &n, &nrhs, a, &lda, af, &ldaf, ipiv,
50  equed, r, c, b, &ldb, x, &ldx, rcond, rpvgrw, berr,
51  &n_err_bnds, err_bnds_norm, err_bnds_comp, &nparams,
52  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  float* a_t = NULL;
62  float* af_t = NULL;
63  float* b_t = NULL;
64  float* x_t = NULL;
65  float* err_bnds_norm_t = NULL;
66  float* err_bnds_comp_t = NULL;
67  /* Check leading dimension(s) */
68  if( lda < n ) {
69  info = -7;
70  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
71  return info;
72  }
73  if( ldaf < n ) {
74  info = -9;
75  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
76  return info;
77  }
78  if( ldb < nrhs ) {
79  info = -15;
80  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
81  return info;
82  }
83  if( ldx < nrhs ) {
84  info = -17;
85  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
86  return info;
87  }
88  /* Allocate memory for temporary array(s) */
89  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
90  if( a_t == NULL ) {
91  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
92  goto exit_level_0;
93  }
94  af_t = (float*)LAPACKE_malloc( sizeof(float) * ldaf_t * MAX(1,n) );
95  if( af_t == NULL ) {
96  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
97  goto exit_level_1;
98  }
99  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
100  if( b_t == NULL ) {
101  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
102  goto exit_level_2;
103  }
104  x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
105  if( x_t == NULL ) {
106  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
107  goto exit_level_3;
108  }
109  err_bnds_norm_t = (float*)
110  LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
111  if( err_bnds_norm_t == NULL ) {
112  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
113  goto exit_level_4;
114  }
115  err_bnds_comp_t = (float*)
116  LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
117  if( err_bnds_comp_t == NULL ) {
118  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
119  goto exit_level_5;
120  }
121  /* Transpose input matrices */
122  LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
123  if( LAPACKE_lsame( fact, 'f' ) ) {
124  LAPACKE_sge_trans( matrix_layout, n, n, af, ldaf, af_t, ldaf_t );
125  }
126  LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
127  /* Call LAPACK function and adjust info */
128  LAPACK_sgesvxx( &fact, &trans, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
129  ipiv, equed, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond,
130  rpvgrw, berr, &n_err_bnds, err_bnds_norm_t,
131  err_bnds_comp_t, &nparams, params, work, iwork, &info );
132  if( info < 0 ) {
133  info = info - 1;
134  }
135  /* Transpose output matrices */
136  if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
137  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
138  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
139  }
140  if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
141  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, af_t, ldaf_t, af, ldaf );
142  }
143  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
144  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
145  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
146  }
147  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
148  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
149  nrhs, err_bnds_norm, n_err_bnds );
150  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
151  nrhs, err_bnds_comp, n_err_bnds );
152  /* Release memory and exit */
153  LAPACKE_free( err_bnds_comp_t );
154 exit_level_5:
155  LAPACKE_free( err_bnds_norm_t );
156 exit_level_4:
157  LAPACKE_free( x_t );
158 exit_level_3:
159  LAPACKE_free( b_t );
160 exit_level_2:
161  LAPACKE_free( af_t );
162 exit_level_1:
163  LAPACKE_free( a_t );
164 exit_level_0:
165  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
166  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
167  }
168  } else {
169  info = -1;
170  LAPACKE_xerbla( "LAPACKE_sgesvxx_work", info );
171  }
172  return info;
173 }
LAPACK_sgesvxx
void LAPACK_sgesvxx(char const *fact, char const *trans, lapack_int const *n, lapack_int const *nrhs, float *A, lapack_int const *lda, float *AF, lapack_int const *ldaf, lapack_int *ipiv, char *equed, float *R, float *C, float *B, lapack_int const *ldb, float *X, lapack_int const *ldx, float *rcond, float *rpvgrw, float *berr, lapack_int const *n_err_bnds, float *err_bnds_norm, float *err_bnds_comp, lapack_int const *nparams, float *params, float *work, lapack_int *iwork, lapack_int *info)
lapack_int
#define lapack_int
Definition: lapack.h:83
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
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:39
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
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