LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dtpmqrt()

lapack_int LAPACKE_dtpmqrt ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
lapack_int  nb,
const double *  v,
lapack_int  ldv,
const double *  t,
lapack_int  ldt,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_dtpmqrt.c.

42 {
43  lapack_int ncols_a, nrows_a;
44  lapack_int nrows_v;
45  lapack_int lwork;
46  lapack_int info = 0;
47  double* work = NULL;
48  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49  LAPACKE_xerbla( "LAPACKE_dtpmqrt", -1 );
50  return -1;
51  }
52 #ifndef LAPACK_DISABLE_NAN_CHECK
53  if( LAPACKE_get_nancheck() ) {
54  /* Optionally check input matrices for NaNs */
55  ncols_a = LAPACKE_lsame( side, 'L' ) ? n :
56  ( LAPACKE_lsame( side, 'R' ) ? k : 0 );
57  nrows_a = LAPACKE_lsame( side, 'L' ) ? k :
58  ( LAPACKE_lsame( side, 'R' ) ? m : 0 );
59  nrows_v = LAPACKE_lsame( side, 'L' ) ? m :
60  ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
61  if( LAPACKE_dge_nancheck( matrix_layout, nrows_a, ncols_a, a, lda ) ) {
62  return -13;
63  }
64  if( LAPACKE_dge_nancheck( matrix_layout, m, n, b, ldb ) ) {
65  return -15;
66  }
67  if( LAPACKE_dge_nancheck( matrix_layout, nb, k, t, ldt ) ) {
68  return -11;
69  }
70  if( LAPACKE_dge_nancheck( matrix_layout, nrows_v, k, v, ldv ) ) {
71  return -9;
72  }
73  }
74 #endif
75  /* Allocate memory for working array(s) */
76  lwork = LAPACKE_lsame( side, 'L' ) ? MAX(1,nb) * MAX(1,n) :
77  ( LAPACKE_lsame( side, 'R' ) ? MAX(1,m) * MAX(1,nb) : 0 );
78  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
79  if( work == NULL ) {
81  goto exit_level_0;
82  }
83  /* Call middle-level interface */
84  info = LAPACKE_dtpmqrt_work( matrix_layout, side, trans, m, n, k, l, nb, v,
85  ldv, t, ldt, a, lda, b, ldb, work );
86  /* Release memory and exit */
87  LAPACKE_free( work );
88 exit_level_0:
89  if( info == LAPACK_WORK_MEMORY_ERROR ) {
90  LAPACKE_xerbla( "LAPACKE_dtpmqrt", info );
91  }
92  return info;
93 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
lapack_int LAPACKE_dtpmqrt_work(int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int k, lapack_int l, lapack_int nb, const double *v, lapack_int ldv, const double *t, lapack_int ldt, double *a, lapack_int lda, double *b, lapack_int ldb, double *work)
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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