LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cggglm_work()

lapack_int LAPACKE_cggglm_work ( int  matrix_layout,
lapack_int  n,
lapack_int  m,
lapack_int  p,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float d,
lapack_complex_float x,
lapack_complex_float y,
lapack_complex_float work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_cggglm_work.c.

42 {
43  lapack_int info = 0;
44  if( matrix_layout == LAPACK_COL_MAJOR ) {
45  /* Call LAPACK function and adjust info */
46  LAPACK_cggglm( &n, &m, &p, a, &lda, b, &ldb, d, x, y, work, &lwork,
47  &info );
48  if( info < 0 ) {
49  info = info - 1;
50  }
51  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52  lapack_int lda_t = MAX(1,n);
53  lapack_int ldb_t = MAX(1,n);
54  lapack_complex_float* a_t = NULL;
55  lapack_complex_float* b_t = NULL;
56  /* Check leading dimension(s) */
57  if( lda < m ) {
58  info = -6;
59  LAPACKE_xerbla( "LAPACKE_cggglm_work", info );
60  return info;
61  }
62  if( ldb < p ) {
63  info = -8;
64  LAPACKE_xerbla( "LAPACKE_cggglm_work", info );
65  return info;
66  }
67  /* Query optimal working array(s) size if requested */
68  if( lwork == -1 ) {
69  LAPACK_cggglm( &n, &m, &p, a, &lda_t, b, &ldb_t, d, x, y, work,
70  &lwork, &info );
71  return (info < 0) ? (info - 1) : info;
72  }
73  /* Allocate memory for temporary array(s) */
74  a_t = (lapack_complex_float*)
75  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,m) );
76  if( a_t == NULL ) {
78  goto exit_level_0;
79  }
80  b_t = (lapack_complex_float*)
81  LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,p) );
82  if( b_t == NULL ) {
84  goto exit_level_1;
85  }
86  /* Transpose input matrices */
87  LAPACKE_cge_trans( matrix_layout, n, m, a, lda, a_t, lda_t );
88  LAPACKE_cge_trans( matrix_layout, n, p, b, ldb, b_t, ldb_t );
89  /* Call LAPACK function and adjust info */
90  LAPACK_cggglm( &n, &m, &p, a_t, &lda_t, b_t, &ldb_t, d, x, y, work,
91  &lwork, &info );
92  if( info < 0 ) {
93  info = info - 1;
94  }
95  /* Transpose output matrices */
96  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, m, a_t, lda_t, a, lda );
97  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, p, b_t, ldb_t, b, ldb );
98  /* Release memory and exit */
99  LAPACKE_free( b_t );
100 exit_level_1:
101  LAPACKE_free( a_t );
102 exit_level_0:
103  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
104  LAPACKE_xerbla( "LAPACKE_cggglm_work", info );
105  }
106  } else {
107  info = -1;
108  LAPACKE_xerbla( "LAPACKE_cggglm_work", info );
109  }
110  return info;
111 }
void LAPACK_cggglm(lapack_int const *n, lapack_int const *m, lapack_int const *p, lapack_complex_float *A, lapack_int const *lda, lapack_complex_float *B, lapack_int const *ldb, lapack_complex_float *D, lapack_complex_float *X, lapack_complex_float *Y, lapack_complex_float *work, lapack_int const *lwork, lapack_int *info)
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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)
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