LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sgbsvxx_work()

lapack_int LAPACKE_sgbsvxx_work ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
float *  ab,
lapack_int  ldab,
float *  afb,
lapack_int  ldafb,
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_sgbsvxx_work.c.

45 {
46  lapack_int info = 0;
47  if( matrix_layout == LAPACK_COL_MAJOR ) {
48  /* Call LAPACK function and adjust info */
49  LAPACK_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
50  &ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
51  rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
52  &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 ldab_t = MAX(1,kl+ku+1);
58  lapack_int ldafb_t = MAX(1,2*kl+ku+1);
59  lapack_int ldb_t = MAX(1,n);
60  lapack_int ldx_t = MAX(1,n);
61  float* ab_t = NULL;
62  float* afb_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( ldab < n ) {
69  info = -9;
70  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
71  return info;
72  }
73  if( ldafb < n ) {
74  info = -11;
75  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
76  return info;
77  }
78  if( ldb < nrhs ) {
79  info = -17;
80  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
81  return info;
82  }
83  if( ldx < nrhs ) {
84  info = -19;
85  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
86  return info;
87  }
88  /* Allocate memory for temporary array(s) */
89  ab_t = (float*)LAPACKE_malloc( sizeof(float) * ldab_t * MAX(1,n) );
90  if( ab_t == NULL ) {
91  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
92  goto exit_level_0;
93  }
94  afb_t = (float*)LAPACKE_malloc( sizeof(float) * ldafb_t * MAX(1,n) );
95  if( afb_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_sgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
123  if( LAPACKE_lsame( fact, 'f' ) ) {
124  LAPACKE_sgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
125  ldafb_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_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
130  afb_t, &ldafb_t, ipiv, equed, r, c, b_t, &ldb_t, x_t,
131  &ldx_t, rcond, rpvgrw, berr, &n_err_bnds,
132  err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
133  work, iwork, &info );
134  if( info < 0 ) {
135  info = info - 1;
136  }
137  /* Transpose output matrices */
138  if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
139  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
140  LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
141  ldab );
142  }
143  if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
144  LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
145  ldafb_t, afb, ldafb );
146  }
147  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
148  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
149  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
150  }
151  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
152  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
153  nrhs, err_bnds_norm, n_err_bnds );
154  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
155  nrhs, err_bnds_comp, n_err_bnds );
156  /* Release memory and exit */
157  LAPACKE_free( err_bnds_comp_t );
158 exit_level_5:
159  LAPACKE_free( err_bnds_norm_t );
160 exit_level_4:
161  LAPACKE_free( x_t );
162 exit_level_3:
163  LAPACKE_free( b_t );
164 exit_level_2:
165  LAPACKE_free( afb_t );
166 exit_level_1:
167  LAPACKE_free( ab_t );
168 exit_level_0:
169  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
170  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
171  }
172  } else {
173  info = -1;
174  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
175  }
176  return info;
177 }
lapack_int
#define lapack_int
Definition: lapack.h:83
LAPACK_sgbsvxx
#define LAPACK_sgbsvxx(...)
Definition: lapack.h:1145
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
LAPACKE_sgb_trans
void LAPACKE_sgb_trans(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const float *in, lapack_int ldin, float *out, lapack_int ldout)
Definition: lapacke_sgb_trans.c:39
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
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