LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sporfs_work()

lapack_int LAPACKE_sporfs_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const float *  a,
lapack_int  lda,
const float *  af,
lapack_int  ldaf,
const float *  b,
lapack_int  ldb,
float *  x,
lapack_int  ldx,
float *  ferr,
float *  berr,
float *  work,
lapack_int iwork 
)

Definition at line 35 of file lapacke_sporfs_work.c.

41 {
42  lapack_int info = 0;
43  if( matrix_layout == LAPACK_COL_MAJOR ) {
44  /* Call LAPACK function and adjust info */
45  LAPACK_sporfs( &uplo, &n, &nrhs, a, &lda, af, &ldaf, b, &ldb, x, &ldx,
46  ferr, berr, work, iwork, &info );
47  if( info < 0 ) {
48  info = info - 1;
49  }
50  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
51  lapack_int lda_t = MAX(1,n);
52  lapack_int ldaf_t = MAX(1,n);
53  lapack_int ldb_t = MAX(1,n);
54  lapack_int ldx_t = MAX(1,n);
55  float* a_t = NULL;
56  float* af_t = NULL;
57  float* b_t = NULL;
58  float* x_t = NULL;
59  /* Check leading dimension(s) */
60  if( lda < n ) {
61  info = -6;
62  LAPACKE_xerbla( "LAPACKE_sporfs_work", info );
63  return info;
64  }
65  if( ldaf < n ) {
66  info = -8;
67  LAPACKE_xerbla( "LAPACKE_sporfs_work", info );
68  return info;
69  }
70  if( ldb < nrhs ) {
71  info = -10;
72  LAPACKE_xerbla( "LAPACKE_sporfs_work", info );
73  return info;
74  }
75  if( ldx < nrhs ) {
76  info = -12;
77  LAPACKE_xerbla( "LAPACKE_sporfs_work", info );
78  return info;
79  }
80  /* Allocate memory for temporary array(s) */
81  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
82  if( a_t == NULL ) {
84  goto exit_level_0;
85  }
86  af_t = (float*)LAPACKE_malloc( sizeof(float) * ldaf_t * MAX(1,n) );
87  if( af_t == NULL ) {
89  goto exit_level_1;
90  }
91  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
92  if( b_t == NULL ) {
94  goto exit_level_2;
95  }
96  x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
97  if( x_t == NULL ) {
99  goto exit_level_3;
100  }
101  /* Transpose input matrices */
102  LAPACKE_spo_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
103  LAPACKE_spo_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
104  LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
105  LAPACKE_sge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
106  /* Call LAPACK function and adjust info */
107  LAPACK_sporfs( &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t, b_t,
108  &ldb_t, x_t, &ldx_t, ferr, berr, work, iwork, &info );
109  if( info < 0 ) {
110  info = info - 1;
111  }
112  /* Transpose output matrices */
113  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
114  /* Release memory and exit */
115  LAPACKE_free( x_t );
116 exit_level_3:
117  LAPACKE_free( b_t );
118 exit_level_2:
119  LAPACKE_free( af_t );
120 exit_level_1:
121  LAPACKE_free( a_t );
122 exit_level_0:
123  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
124  LAPACKE_xerbla( "LAPACKE_sporfs_work", info );
125  }
126  } else {
127  info = -1;
128  LAPACKE_xerbla( "LAPACKE_sporfs_work", info );
129  }
130  return info;
131 }
#define LAPACK_sporfs(...)
Definition: lapack.h:12832
#define lapack_int
Definition: lapack.h:83
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_spo_trans(int matrix_layout, char uplo, lapack_int n, const float *in, lapack_int ldin, 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:46
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