LAPACK  3.8.0
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 36 of file lapacke_sgbsvxx_work.c.

46 {
47  lapack_int info = 0;
48  if( matrix_layout == LAPACK_COL_MAJOR ) {
49  /* Call LAPACK function and adjust info */
50  LAPACK_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
51  &ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
52  rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
53  &nparams, params, work, iwork, &info );
54  if( info < 0 ) {
55  info = info - 1;
56  }
57  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
58  lapack_int ldab_t = MAX(1,kl+ku+1);
59  lapack_int ldafb_t = MAX(1,2*kl+ku+1);
60  lapack_int ldb_t = MAX(1,n);
61  lapack_int ldx_t = MAX(1,n);
62  float* ab_t = NULL;
63  float* afb_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( ldab < n ) {
70  info = -9;
71  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
72  return info;
73  }
74  if( ldafb < n ) {
75  info = -11;
76  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
77  return info;
78  }
79  if( ldb < nrhs ) {
80  info = -17;
81  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
82  return info;
83  }
84  if( ldx < nrhs ) {
85  info = -19;
86  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
87  return info;
88  }
89  /* Allocate memory for temporary array(s) */
90  ab_t = (float*)LAPACKE_malloc( sizeof(float) * ldab_t * MAX(1,n) );
91  if( ab_t == NULL ) {
93  goto exit_level_0;
94  }
95  afb_t = (float*)LAPACKE_malloc( sizeof(float) * ldafb_t * MAX(1,n) );
96  if( afb_t == NULL ) {
98  goto exit_level_1;
99  }
100  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
101  if( b_t == NULL ) {
103  goto exit_level_2;
104  }
105  x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
106  if( x_t == NULL ) {
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 ) {
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 ) {
120  goto exit_level_5;
121  }
122  /* Transpose input matrices */
123  LAPACKE_sgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
124  if( LAPACKE_lsame( fact, 'f' ) ) {
125  LAPACKE_sgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
126  ldafb_t );
127  }
128  LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
129  /* Call LAPACK function and adjust info */
130  LAPACK_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
131  afb_t, &ldafb_t, ipiv, equed, r, c, b_t, &ldb_t, x_t,
132  &ldx_t, rcond, rpvgrw, berr, &n_err_bnds,
133  err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
134  work, iwork, &info );
135  if( info < 0 ) {
136  info = info - 1;
137  }
138  /* Transpose output matrices */
139  if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
140  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
141  LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
142  ldab );
143  }
144  if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
145  LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
146  ldafb_t, afb, ldafb );
147  }
148  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
149  LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
150  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
151  }
152  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
153  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
154  nrhs, err_bnds_norm, n_err_bnds );
155  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
156  nrhs, err_bnds_comp, n_err_bnds );
157  /* Release memory and exit */
158  LAPACKE_free( err_bnds_comp_t );
159 exit_level_5:
160  LAPACKE_free( err_bnds_norm_t );
161 exit_level_4:
162  LAPACKE_free( x_t );
163 exit_level_3:
164  LAPACKE_free( b_t );
165 exit_level_2:
166  LAPACKE_free( afb_t );
167 exit_level_1:
168  LAPACKE_free( ab_t );
169 exit_level_0:
170  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
171  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
172  }
173  } else {
174  info = -1;
175  LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
176  }
177  return info;
178 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
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
void LAPACK_sgbsvxx(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, lapack_int *info)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
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)
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)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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