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2 Copyright (c) 2014, Intel Corp.
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28 ******************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function dtpmqrt
30 * Author: Intel Corporation
31 *****************************************************************************/
32
33 #include "lapacke_utils.h"
34
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)35 lapack_int LAPACKE_dtpmqrt_work( int matrix_layout, char side, char trans,
36 lapack_int m, lapack_int n, lapack_int k,
37 lapack_int l, lapack_int nb, const double* v,
38 lapack_int ldv, const double* t,
39 lapack_int ldt, double* a, lapack_int lda,
40 double* b, lapack_int ldb, double* work )
41 {
42 lapack_int info = 0;
43 if( matrix_layout == LAPACK_COL_MAJOR ) {
44 /* Call LAPACK function and adjust info */
45 LAPACK_dtpmqrt( &side, &trans, &m, &n, &k, &l, &nb, v, &ldv, t, &ldt, a,
46 &lda, b, &ldb, work, &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 ldb_t = MAX(1,m);
53 lapack_int ldt_t = MAX(1,ldt);
54 lapack_int ldv_t = MAX(1,ldv);
55 double* v_t = NULL;
56 double* t_t = NULL;
57 double* a_t = NULL;
58 double* b_t = NULL;
59 /* Check leading dimension(s) */
60 if( lda < m ) {
61 info = -14;
62 LAPACKE_xerbla( "LAPACKE_dtpmqrt_work", info );
63 return info;
64 }
65 if( ldb < n ) {
66 info = -16;
67 LAPACKE_xerbla( "LAPACKE_dtpmqrt_work", info );
68 return info;
69 }
70 if( ldt < nb ) {
71 info = -12;
72 LAPACKE_xerbla( "LAPACKE_dtpmqrt_work", info );
73 return info;
74 }
75 if( ldv < k ) {
76 info = -10;
77 LAPACKE_xerbla( "LAPACKE_dtpmqrt_work", info );
78 return info;
79 }
80 /* Allocate memory for temporary array(s) */
81 v_t = (double*)LAPACKE_malloc( sizeof(double) * ldv_t * MAX(1,k) );
82 if( v_t == NULL ) {
83 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
84 goto exit_level_0;
85 }
86 t_t = (double*)LAPACKE_malloc( sizeof(double) * ldt_t * MAX(1,nb) );
87 if( t_t == NULL ) {
88 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
89 goto exit_level_1;
90 }
91 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,m) );
92 if( a_t == NULL ) {
93 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
94 goto exit_level_2;
95 }
96 b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
97 if( b_t == NULL ) {
98 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
99 goto exit_level_3;
100 }
101 /* Transpose input matrices */
102 LAPACKE_dge_trans( matrix_layout, ldv, k, v, ldv, v_t, ldv_t );
103 LAPACKE_dge_trans( matrix_layout, ldt, nb, t, ldt, t_t, ldt_t );
104 LAPACKE_dge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
105 LAPACKE_dge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
106 /* Call LAPACK function and adjust info */
107 LAPACK_dtpmqrt( &side, &trans, &m, &n, &k, &l, &nb, v_t, &ldv_t, t_t,
108 &ldt_t, a_t, &lda_t, b_t, &ldb_t, work, &info );
109 if( info < 0 ) {
110 info = info - 1;
111 }
112 /* Transpose output matrices */
113 LAPACKE_dge_trans( LAPACK_COL_MAJOR, k, m, a_t, lda_t, a, lda );
114 LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
115 /* Release memory and exit */
116 LAPACKE_free( b_t );
117 exit_level_3:
118 LAPACKE_free( a_t );
119 exit_level_2:
120 LAPACKE_free( t_t );
121 exit_level_1:
122 LAPACKE_free( v_t );
123 exit_level_0:
124 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
125 LAPACKE_xerbla( "LAPACKE_dtpmqrt_work", info );
126 }
127 } else {
128 info = -1;
129 LAPACKE_xerbla( "LAPACKE_dtpmqrt_work", info );
130 }
131 return info;
132 }
133