LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgbsvxx_work()

lapack_int LAPACKE_cgbsvxx_work ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
lapack_complex_float ab,
lapack_int  ldab,
lapack_complex_float afb,
lapack_int  ldafb,
lapack_int ipiv,
char *  equed,
float *  r,
float *  c,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_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,
lapack_complex_float work,
float *  rwork 
)

Definition at line 36 of file lapacke_cgbsvxx_work.c.

49 {
50  lapack_int info = 0;
51  if( matrix_layout == LAPACK_COL_MAJOR ) {
52  /* Call LAPACK function and adjust info */
53  LAPACK_cgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
54  &ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
55  rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
56  &nparams, params, work, rwork, &info );
57  if( info < 0 ) {
58  info = info - 1;
59  }
60  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
61  lapack_int ldab_t = MAX(1,kl+ku+1);
62  lapack_int ldafb_t = MAX(1,2*kl+ku+1);
63  lapack_int ldb_t = MAX(1,n);
64  lapack_int ldx_t = MAX(1,n);
65  lapack_complex_float* ab_t = NULL;
66  lapack_complex_float* afb_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( ldab < n ) {
73  info = -9;
74  LAPACKE_xerbla( "LAPACKE_cgbsvxx_work", info );
75  return info;
76  }
77  if( ldafb < n ) {
78  info = -11;
79  LAPACKE_xerbla( "LAPACKE_cgbsvxx_work", info );
80  return info;
81  }
82  if( ldb < nrhs ) {
83  info = -17;
84  LAPACKE_xerbla( "LAPACKE_cgbsvxx_work", info );
85  return info;
86  }
87  if( ldx < nrhs ) {
88  info = -19;
89  LAPACKE_xerbla( "LAPACKE_cgbsvxx_work", info );
90  return info;
91  }
92  /* Allocate memory for temporary array(s) */
93  ab_t = (lapack_complex_float*)
94  LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
95  if( ab_t == NULL ) {
97  goto exit_level_0;
98  }
99  afb_t = (lapack_complex_float*)
100  LAPACKE_malloc( sizeof(lapack_complex_float) * ldafb_t * MAX(1,n) );
101  if( afb_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_cgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
133  if( LAPACKE_lsame( fact, 'f' ) ) {
134  LAPACKE_cgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
135  ldafb_t );
136  }
137  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
138  /* Call LAPACK function and adjust info */
139  LAPACK_cgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
140  afb_t, &ldafb_t, ipiv, equed, r, c, b_t, &ldb_t, x_t,
141  &ldx_t, rcond, rpvgrw, berr, &n_err_bnds,
142  err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
143  work, rwork, &info );
144  if( info < 0 ) {
145  info = info - 1;
146  }
147  /* Transpose output matrices */
148  if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
149  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
150  LAPACKE_cgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
151  ldab );
152  }
153  if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
154  LAPACKE_cgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
155  ldafb_t, afb, ldafb );
156  }
157  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
158  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
159  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
160  }
161  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
162  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
163  nrhs, err_bnds_norm, n_err_bnds );
164  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
165  nrhs, err_bnds_comp, n_err_bnds );
166  /* Release memory and exit */
167  LAPACKE_free( err_bnds_comp_t );
168 exit_level_5:
169  LAPACKE_free( err_bnds_norm_t );
170 exit_level_4:
171  LAPACKE_free( x_t );
172 exit_level_3:
173  LAPACKE_free( b_t );
174 exit_level_2:
175  LAPACKE_free( afb_t );
176 exit_level_1:
177  LAPACKE_free( ab_t );
178 exit_level_0:
179  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
180  LAPACKE_xerbla( "LAPACKE_cgbsvxx_work", info );
181  }
182  } else {
183  info = -1;
184  LAPACKE_xerbla( "LAPACKE_cgbsvxx_work", info );
185  }
186  return info;
187 }
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_cgb_trans(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
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
void LAPACK_cgbsvxx(char *fact, char *trans, lapack_int *n, lapack_int *kl, lapack_int *ku, lapack_int *nrhs, lapack_complex_float *ab, lapack_int *ldab, lapack_complex_float *afb, lapack_int *ldafb, lapack_int *ipiv, char *equed, float *r, float *c, lapack_complex_float *b, lapack_int *ldb, lapack_complex_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, lapack_complex_float *work, float *rwork, lapack_int *info)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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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