LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgbsvxx_work()

lapack_int LAPACKE_zgbsvxx_work ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
lapack_complex_double *  ab,
lapack_int  ldab,
lapack_complex_double *  afb,
lapack_int  ldafb,
lapack_int *  ipiv,
char *  equed,
double *  r,
double *  c,
lapack_complex_double *  b,
lapack_int  ldb,
lapack_complex_double *  x,
lapack_int  ldx,
double *  rcond,
double *  rpvgrw,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params,
lapack_complex_double *  work,
double *  rwork 
)

Definition at line 35 of file lapacke_zgbsvxx_work.c.

48 {
49  lapack_int info = 0;
50  if( matrix_layout == LAPACK_COL_MAJOR ) {
51  /* Call LAPACK function and adjust info */
52  LAPACK_zgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
53  &ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
54  rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
55  &nparams, params, work, rwork, &info );
56  if( info < 0 ) {
57  info = info - 1;
58  }
59  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
60  lapack_int ldab_t = MAX(1,kl+ku+1);
61  lapack_int ldafb_t = MAX(1,2*kl+ku+1);
62  lapack_int ldb_t = MAX(1,n);
63  lapack_int ldx_t = MAX(1,n);
64  lapack_complex_double* ab_t = NULL;
65  lapack_complex_double* afb_t = NULL;
66  lapack_complex_double* b_t = NULL;
67  lapack_complex_double* x_t = NULL;
68  double* err_bnds_norm_t = NULL;
69  double* err_bnds_comp_t = NULL;
70  /* Check leading dimension(s) */
71  if( ldab < n ) {
72  info = -9;
73  LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
74  return info;
75  }
76  if( ldafb < n ) {
77  info = -11;
78  LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
79  return info;
80  }
81  if( ldb < nrhs ) {
82  info = -17;
83  LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
84  return info;
85  }
86  if( ldx < nrhs ) {
87  info = -19;
88  LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
89  return info;
90  }
91  /* Allocate memory for temporary array(s) */
92  ab_t = (lapack_complex_double*)
93  LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
94  if( ab_t == NULL ) {
95  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
96  goto exit_level_0;
97  }
98  afb_t = (lapack_complex_double*)
99  LAPACKE_malloc( sizeof(lapack_complex_double) *
100  ldafb_t * MAX(1,n) );
101  if( afb_t == NULL ) {
102  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
103  goto exit_level_1;
104  }
105  b_t = (lapack_complex_double*)
106  LAPACKE_malloc( sizeof(lapack_complex_double) *
107  ldb_t * MAX(1,nrhs) );
108  if( b_t == NULL ) {
109  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
110  goto exit_level_2;
111  }
112  x_t = (lapack_complex_double*)
113  LAPACKE_malloc( sizeof(lapack_complex_double) *
114  ldx_t * MAX(1,nrhs) );
115  if( x_t == NULL ) {
116  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
117  goto exit_level_3;
118  }
119  err_bnds_norm_t = (double*)
120  LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
121  if( err_bnds_norm_t == NULL ) {
122  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
123  goto exit_level_4;
124  }
125  err_bnds_comp_t = (double*)
126  LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
127  if( err_bnds_comp_t == NULL ) {
128  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
129  goto exit_level_5;
130  }
131  /* Transpose input matrices */
132  LAPACKE_zgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
133  if( LAPACKE_lsame( fact, 'f' ) ) {
134  LAPACKE_zgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
135  ldafb_t );
136  }
137  LAPACKE_zge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
138  /* Call LAPACK function and adjust info */
139  LAPACK_zgbsvxx( &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_zgb_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_zgb_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_zge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
160  }
161  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
162  LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
163  nrhs, err_bnds_norm, n_err_bnds );
164  LAPACKE_dge_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_zgbsvxx_work", info );
181  }
182  } else {
183  info = -1;
184  LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
185  }
186  return info;
187 }
lapack_int
#define lapack_int
Definition: lapack.h:83
lapack_complex_double
#define lapack_complex_double
Definition: lapack.h:63
LAPACK_zgbsvxx
#define LAPACK_zgbsvxx(...)
Definition: lapack.h:1175
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_zge_trans
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
Definition: lapacke_zge_trans.c:39
LAPACKE_zgb_trans
void LAPACKE_zgb_trans(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
Definition: lapacke_zgb_trans.c:39
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
LAPACKE_dge_trans
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
Definition: lapacke_dge_trans.c:39
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