LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztprfb_work()

lapack_int LAPACKE_ztprfb_work ( int  matrix_layout,
char  side,
char  trans,
char  direct,
char  storev,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
const lapack_complex_double v,
lapack_int  ldv,
const lapack_complex_double t,
lapack_int  ldt,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double work,
lapack_int  ldwork 
)

Definition at line 35 of file lapacke_ztprfb_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_ztprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v, &ldv,
48  t, &ldt, a, &lda, b, &ldb, work, &ldwork );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int lda_t = MAX(1,k);
54  lapack_int ldb_t = MAX(1,m);
55  lapack_int ldt_t = MAX(1,ldt);
56  lapack_int ldv_t = MAX(1,ldv);
57  lapack_complex_double* v_t = NULL;
58  lapack_complex_double* t_t = NULL;
59  lapack_complex_double* a_t = NULL;
60  lapack_complex_double* b_t = NULL;
61  /* Check leading dimension(s) */
62  if( lda < m ) {
63  info = -15;
64  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
65  return info;
66  }
67  if( ldb < n ) {
68  info = -17;
69  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
70  return info;
71  }
72  if( ldt < k ) {
73  info = -13;
74  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
75  return info;
76  }
77  if( ldv < k ) {
78  info = -11;
79  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
80  return info;
81  }
82  /* Allocate memory for temporary array(s) */
83  v_t = (lapack_complex_double*)
84  LAPACKE_malloc( sizeof(lapack_complex_double) * ldv_t * MAX(1,k) );
85  if( v_t == NULL ) {
87  goto exit_level_0;
88  }
89  t_t = (lapack_complex_double*)
90  LAPACKE_malloc( sizeof(lapack_complex_double) * ldt_t * MAX(1,k) );
91  if( t_t == NULL ) {
93  goto exit_level_1;
94  }
95  a_t = (lapack_complex_double*)
96  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,m) );
97  if( a_t == NULL ) {
99  goto exit_level_2;
100  }
101  b_t = (lapack_complex_double*)
102  LAPACKE_malloc( sizeof(lapack_complex_double) * ldb_t * MAX(1,n) );
103  if( b_t == NULL ) {
105  goto exit_level_3;
106  }
107  /* Transpose input matrices */
108  LAPACKE_zge_trans( matrix_layout, ldv, k, v, ldv, v_t, ldv_t );
109  LAPACKE_zge_trans( matrix_layout, ldt, k, t, ldt, t_t, ldt_t );
110  LAPACKE_zge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
111  LAPACKE_zge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
112  /* Call LAPACK function and adjust info */
113  LAPACK_ztprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v_t,
114  &ldv_t, t_t, &ldt_t, a_t, &lda_t, b_t, &ldb_t, work,
115  &ldwork );
116  info = 0; /* LAPACK call is ok! */
117  /* Transpose output matrices */
118  LAPACKE_zge_trans( LAPACK_COL_MAJOR, k, m, a_t, lda_t, a, lda );
119  LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
120  /* Release memory and exit */
121  LAPACKE_free( b_t );
122 exit_level_3:
123  LAPACKE_free( a_t );
124 exit_level_2:
125  LAPACKE_free( t_t );
126 exit_level_1:
127  LAPACKE_free( v_t );
128 exit_level_0:
129  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
130  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
131  }
132  } else {
133  info = -1;
134  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
135  }
136  return info;
137 }
#define LAPACK_ztprfb(...)
Definition: lapack.h:20970
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#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_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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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