LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zporfs_work()

lapack_int LAPACKE_zporfs_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_double a,
lapack_int  lda,
const lapack_complex_double af,
lapack_int  ldaf,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  ferr,
double *  berr,
lapack_complex_double work,
double *  rwork 
)

Definition at line 36 of file lapacke_zporfs_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_zporfs( &uplo, &n, &nrhs, a, &lda, af, &ldaf, b, &ldb, x, &ldx,
48  ferr, berr, work, rwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int lda_t = MAX(1,n);
54  lapack_int ldaf_t = MAX(1,n);
55  lapack_int ldb_t = MAX(1,n);
56  lapack_int ldx_t = MAX(1,n);
57  lapack_complex_double* a_t = NULL;
58  lapack_complex_double* af_t = NULL;
59  lapack_complex_double* b_t = NULL;
60  lapack_complex_double* x_t = NULL;
61  /* Check leading dimension(s) */
62  if( lda < n ) {
63  info = -6;
64  LAPACKE_xerbla( "LAPACKE_zporfs_work", info );
65  return info;
66  }
67  if( ldaf < n ) {
68  info = -8;
69  LAPACKE_xerbla( "LAPACKE_zporfs_work", info );
70  return info;
71  }
72  if( ldb < nrhs ) {
73  info = -10;
74  LAPACKE_xerbla( "LAPACKE_zporfs_work", info );
75  return info;
76  }
77  if( ldx < nrhs ) {
78  info = -12;
79  LAPACKE_xerbla( "LAPACKE_zporfs_work", info );
80  return info;
81  }
82  /* Allocate memory for temporary array(s) */
83  a_t = (lapack_complex_double*)
84  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
85  if( a_t == NULL ) {
87  goto exit_level_0;
88  }
89  af_t = (lapack_complex_double*)
90  LAPACKE_malloc( sizeof(lapack_complex_double) * ldaf_t * MAX(1,n) );
91  if( af_t == NULL ) {
93  goto exit_level_1;
94  }
95  b_t = (lapack_complex_double*)
97  ldb_t * MAX(1,nrhs) );
98  if( b_t == NULL ) {
100  goto exit_level_2;
101  }
102  x_t = (lapack_complex_double*)
104  ldx_t * MAX(1,nrhs) );
105  if( x_t == NULL ) {
107  goto exit_level_3;
108  }
109  /* Transpose input matrices */
110  LAPACKE_zpo_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
111  LAPACKE_zpo_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
112  LAPACKE_zge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
113  LAPACKE_zge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
114  /* Call LAPACK function and adjust info */
115  LAPACK_zporfs( &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t, b_t,
116  &ldb_t, x_t, &ldx_t, ferr, berr, work, rwork, &info );
117  if( info < 0 ) {
118  info = info - 1;
119  }
120  /* Transpose output matrices */
121  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
122  /* Release memory and exit */
123  LAPACKE_free( x_t );
124 exit_level_3:
125  LAPACKE_free( b_t );
126 exit_level_2:
127  LAPACKE_free( af_t );
128 exit_level_1:
129  LAPACKE_free( a_t );
130 exit_level_0:
131  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
132  LAPACKE_xerbla( "LAPACKE_zporfs_work", info );
133  }
134  } else {
135  info = -1;
136  LAPACKE_xerbla( "LAPACKE_zporfs_work", info );
137  }
138  return info;
139 }
void LAPACKE_zpo_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_double
Definition: lapacke.h:90
void LAPACK_zporfs(char *uplo, lapack_int *n, lapack_int *nrhs, const lapack_complex_double *a, lapack_int *lda, const lapack_complex_double *af, lapack_int *ldaf, const lapack_complex_double *b, lapack_int *ldb, lapack_complex_double *x, lapack_int *ldx, double *ferr, double *berr, lapack_complex_double *work, double *rwork, lapack_int *info)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#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
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
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