LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sptsvx_work()

lapack_int LAPACKE_sptsvx_work ( int  matrix_layout,
char  fact,
lapack_int  n,
lapack_int  nrhs,
const float *  d,
const float *  e,
float *  df,
float *  ef,
const float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  rcond,
float *  ferr,
float *  berr,
float *  work 
)

Definition at line 36 of file lapacke_sptsvx_work.c.

42 {
43  lapack_int info = 0;
44  if( matrix_layout == LAPACK_COL_MAJOR ) {
45  /* Call LAPACK function and adjust info */
46  LAPACK_sptsvx( &fact, &n, &nrhs, d, e, df, ef, b, &ldb, x, &ldx, rcond,
47  ferr, berr, work, &info );
48  if( info < 0 ) {
49  info = info - 1;
50  }
51  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52  lapack_int ldb_t = MAX(1,n);
53  lapack_int ldx_t = MAX(1,n);
54  float* b_t = NULL;
55  float* x_t = NULL;
56  /* Check leading dimension(s) */
57  if( ldb < nrhs ) {
58  info = -10;
59  LAPACKE_xerbla( "LAPACKE_sptsvx_work", info );
60  return info;
61  }
62  if( ldx < nrhs ) {
63  info = -12;
64  LAPACKE_xerbla( "LAPACKE_sptsvx_work", info );
65  return info;
66  }
67  /* Allocate memory for temporary array(s) */
68  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
69  if( b_t == NULL ) {
71  goto exit_level_0;
72  }
73  x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
74  if( x_t == NULL ) {
76  goto exit_level_1;
77  }
78  /* Transpose input matrices */
79  LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
80  /* Call LAPACK function and adjust info */
81  LAPACK_sptsvx( &fact, &n, &nrhs, d, e, df, ef, b_t, &ldb_t, x_t, &ldx_t,
82  rcond, ferr, berr, work, &info );
83  if( info < 0 ) {
84  info = info - 1;
85  }
86  /* Transpose output matrices */
87  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
88  /* Release memory and exit */
89  LAPACKE_free( x_t );
90 exit_level_1:
91  LAPACKE_free( b_t );
92 exit_level_0:
93  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
94  LAPACKE_xerbla( "LAPACKE_sptsvx_work", info );
95  }
96  } else {
97  info = -1;
98  LAPACKE_xerbla( "LAPACKE_sptsvx_work", info );
99  }
100  return info;
101 }
#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
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
void LAPACK_sptsvx(char *fact, lapack_int *n, lapack_int *nrhs, const float *d, const float *e, float *df, float *ef, const float *b, lapack_int *ldb, float *x, lapack_int *ldx, float *rcond, float *ferr, float *berr, float *work, lapack_int *info)
#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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