LAPACK 3.11.0 LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dgetsqrhrt_work()

 lapack_int LAPACKE_dgetsqrhrt_work ( int matrix_layout, lapack_int m, lapack_int n, lapack_int mb1, lapack_int nb1, lapack_int nb2, double * a, lapack_int lda, double * t, lapack_int ldt, double * work, lapack_int lwork )

Definition at line 35 of file lapacke_dgetsqrhrt_work.c.

40{
41 lapack_int info = 0;
42 if( matrix_layout == LAPACK_COL_MAJOR ) {
43 /* Call LAPACK function and adjust info */
44 LAPACK_dgetsqrhrt( &m, &n, &mb1, &nb1, &nb2, a, &lda, t, &ldt,
45 work, &lwork, &info );
46 if( info < 0 ) {
47 info = info - 1;
48 }
49 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
50 lapack_int lda_t = MAX(1,m);
51 double* a_t = NULL;
52 lapack_int ldt_t = MAX(1,nb2);
53 double* t_t = NULL;
54 /* Check leading dimension(s) */
55 if( lda < n ) {
56 info = -8;
57 LAPACKE_xerbla( "LAPACKE_dgetsqrhrt_work", info );
58 return info;
59 }
60 if( ldt < n ) {
61 info = -10;
62 LAPACKE_xerbla( "LAPACKE_dgetsqrhrt_work", info );
63 return info;
64 }
65 /* Query optimal working array(s) size if requested */
66 if( lwork == -1 ) {
67 LAPACK_dgetsqrhrt( &m, &n, &mb1, &nb1, &nb2, a, &lda_t, t, &ldt_t,
68 work, &lwork, &info );
69 return (info < 0) ? (info - 1) : info;
70 }
71 /* Allocate memory for temporary array(s) */
72 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
73 if( a_t == NULL ) {
75 goto exit_level_0;
76 }
77 t_t = (double*)LAPACKE_malloc( sizeof(double) * ldt_t * MAX(1,n) );
78 if( t_t == NULL ) {
80 goto exit_level_1;
81 }
82 /* Transpose input matrices */
83 LAPACKE_dge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
84 /* Call LAPACK function and adjust info */
85 LAPACK_dgetsqrhrt( &m, &n, &mb1, &nb1, &nb2, a_t, &lda_t, t_t, &ldt_t,
86 work, &lwork, &info );
87 if( info < 0 ) {
88 info = info - 1;
89 }
90 /* Transpose output matrices */
91 LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
92 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nb2, n, t_t, ldt_t, t, ldt );
93 /* Release memory and exit */
94 LAPACKE_free( t_t );
95exit_level_1:
96 LAPACKE_free( a_t );
97exit_level_0:
98 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
99 LAPACKE_xerbla( "LAPACKE_dgetsqrhrt_work", info );
100 }
101 } else {
102 info = -1;
103 LAPACKE_xerbla( "LAPACKE_dgetsqrhrt_work", info );
104 }
105 return info;
106}
#define LAPACK_dgetsqrhrt
Definition: lapack.h:4191
#define lapack_int
Definition: lapack.h:87
#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_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
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