LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cpprfs_work()

lapack_int LAPACKE_cpprfs_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float ap,
const lapack_complex_float afp,
const lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  ferr,
float *  berr,
lapack_complex_float work,
float *  rwork 
)

Definition at line 36 of file lapacke_cpprfs_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_cpprfs( &uplo, &n, &nrhs, ap, afp, b, &ldb, x, &ldx, ferr, berr,
48  work, rwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int ldb_t = MAX(1,n);
54  lapack_int ldx_t = MAX(1,n);
55  lapack_complex_float* b_t = NULL;
56  lapack_complex_float* x_t = NULL;
57  lapack_complex_float* ap_t = NULL;
58  lapack_complex_float* afp_t = NULL;
59  /* Check leading dimension(s) */
60  if( ldb < nrhs ) {
61  info = -8;
62  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
63  return info;
64  }
65  if( ldx < nrhs ) {
66  info = -10;
67  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
68  return info;
69  }
70  /* Allocate memory for temporary array(s) */
71  b_t = (lapack_complex_float*)
73  ldb_t * MAX(1,nrhs) );
74  if( b_t == NULL ) {
76  goto exit_level_0;
77  }
78  x_t = (lapack_complex_float*)
80  ldx_t * MAX(1,nrhs) );
81  if( x_t == NULL ) {
83  goto exit_level_1;
84  }
85  ap_t = (lapack_complex_float*)
87  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
88  if( ap_t == NULL ) {
90  goto exit_level_2;
91  }
92  afp_t = (lapack_complex_float*)
94  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
95  if( afp_t == NULL ) {
97  goto exit_level_3;
98  }
99  /* Transpose input matrices */
100  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
101  LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
102  LAPACKE_cpp_trans( matrix_layout, uplo, n, ap, ap_t );
103  LAPACKE_cpp_trans( matrix_layout, uplo, n, afp, afp_t );
104  /* Call LAPACK function and adjust info */
105  LAPACK_cpprfs( &uplo, &n, &nrhs, ap_t, afp_t, b_t, &ldb_t, x_t, &ldx_t,
106  ferr, berr, work, rwork, &info );
107  if( info < 0 ) {
108  info = info - 1;
109  }
110  /* Transpose output matrices */
111  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
112  /* Release memory and exit */
113  LAPACKE_free( afp_t );
114 exit_level_3:
115  LAPACKE_free( ap_t );
116 exit_level_2:
117  LAPACKE_free( x_t );
118 exit_level_1:
119  LAPACKE_free( b_t );
120 exit_level_0:
121  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
122  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
123  }
124  } else {
125  info = -1;
126  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
127  }
128  return info;
129 }
void LAPACKE_cpp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
void LAPACK_cpprfs(char *uplo, lapack_int *n, lapack_int *nrhs, const lapack_complex_float *ap, const lapack_complex_float *afp, const lapack_complex_float *b, lapack_int *ldb, lapack_complex_float *x, lapack_int *ldx, float *ferr, float *berr, lapack_complex_float *work, float *rwork, 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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