LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cunmrq_work()

lapack_int LAPACKE_cunmrq_work ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
const lapack_complex_float a,
lapack_int  lda,
const lapack_complex_float tau,
lapack_complex_float c,
lapack_int  ldc,
lapack_complex_float work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_cunmrq_work.c.

41 {
42  lapack_int info = 0;
43  if( matrix_layout == LAPACK_COL_MAJOR ) {
44  /* Call LAPACK function and adjust info */
45  LAPACK_cunmrq( &side, &trans, &m, &n, &k, a, &lda, tau, c, &ldc, work,
46  &lwork, &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,k);
52  lapack_int ldc_t = MAX(1,m);
53  lapack_complex_float* a_t = NULL;
54  lapack_complex_float* c_t = NULL;
55  /* Check leading dimension(s) */
56  if( lda < m ) {
57  info = -8;
58  LAPACKE_xerbla( "LAPACKE_cunmrq_work", info );
59  return info;
60  }
61  if( ldc < n ) {
62  info = -11;
63  LAPACKE_xerbla( "LAPACKE_cunmrq_work", info );
64  return info;
65  }
66  /* Query optimal working array(s) size if requested */
67  if( lwork == -1 ) {
68  LAPACK_cunmrq( &side, &trans, &m, &n, &k, a, &lda_t, tau, c, &ldc_t,
69  work, &lwork, &info );
70  return (info < 0) ? (info - 1) : info;
71  }
72  /* Allocate memory for temporary array(s) */
73  a_t = (lapack_complex_float*)
74  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,m) );
75  if( a_t == NULL ) {
77  goto exit_level_0;
78  }
79  c_t = (lapack_complex_float*)
80  LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
81  if( c_t == NULL ) {
83  goto exit_level_1;
84  }
85  /* Transpose input matrices */
86  LAPACKE_cge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
87  LAPACKE_cge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
88  /* Call LAPACK function and adjust info */
89  LAPACK_cunmrq( &side, &trans, &m, &n, &k, a_t, &lda_t, tau, c_t, &ldc_t,
90  work, &lwork, &info );
91  if( info < 0 ) {
92  info = info - 1;
93  }
94  /* Transpose output matrices */
95  LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
96  /* Release memory and exit */
97  LAPACKE_free( c_t );
98 exit_level_1:
99  LAPACKE_free( a_t );
100 exit_level_0:
101  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
102  LAPACKE_xerbla( "LAPACKE_cunmrq_work", info );
103  }
104  } else {
105  info = -1;
106  LAPACKE_xerbla( "LAPACKE_cunmrq_work", info );
107  }
108  return info;
109 }
#define LAPACK_cunmrq(...)
Definition: lapack.h:22817
#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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