LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_cbdsqr_work.c
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1/*****************************************************************************
2 Copyright (c) 2014, Intel Corp.
3 All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
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8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
13 * Neither the name of Intel Corporation nor the names of its contributors
14 may be used to endorse or promote products derived from this software
15 without specific prior written permission.
16
17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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28*****************************************************************************
29* Contents: Native middle-level C interface to LAPACK function cbdsqr
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_cbdsqr_work( int matrix_layout, char uplo, lapack_int n,
36 lapack_int ncvt, lapack_int nru, lapack_int ncc,
37 float* d, float* e, lapack_complex_float* vt,
40 lapack_int ldc, float* work )
41{
42 lapack_int info = 0;
43 if( matrix_layout == LAPACK_COL_MAJOR ) {
44 /* Call LAPACK function and adjust info */
45 LAPACK_cbdsqr( &uplo, &n, &ncvt, &nru, &ncc, d, e, vt, &ldvt, u, &ldu,
46 c, &ldc, work, &info );
47 if( info < 0 ) {
48 info = info - 1;
49 }
50 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
51 lapack_int ldc_t = MAX(1,n);
52 lapack_int ldu_t = MAX(1,nru);
53 lapack_int ldvt_t = MAX(1,n);
54 lapack_complex_float* vt_t = NULL;
55 lapack_complex_float* u_t = NULL;
56 lapack_complex_float* c_t = NULL;
57 /* Check leading dimension(s) */
58 if( ldc < ncc ) {
59 info = -14;
60 LAPACKE_xerbla( "LAPACKE_cbdsqr_work", info );
61 return info;
62 }
63 if( ldu < n ) {
64 info = -12;
65 LAPACKE_xerbla( "LAPACKE_cbdsqr_work", info );
66 return info;
67 }
68 if( ldvt < ncvt ) {
69 info = -10;
70 LAPACKE_xerbla( "LAPACKE_cbdsqr_work", info );
71 return info;
72 }
73 /* Allocate memory for temporary array(s) */
74 if( ncvt != 0 ) {
75 vt_t = (lapack_complex_float*)
77 ldvt_t * MAX(1,ncvt) );
78 if( vt_t == NULL ) {
80 goto exit_level_0;
81 }
82 }
83 if( nru != 0 ) {
86 ldu_t * MAX(1,n) );
87 if( u_t == NULL ) {
89 goto exit_level_1;
90 }
91 }
92 if( ncc != 0 ) {
95 ldc_t * MAX(1,ncc) );
96 if( c_t == NULL ) {
98 goto exit_level_2;
99 }
100 }
101 /* Transpose input matrices */
102 if( ncvt != 0 ) {
103 LAPACKE_cge_trans( matrix_layout, n, ncvt, vt, ldvt, vt_t, ldvt_t );
104 }
105 if( nru != 0 ) {
106 LAPACKE_cge_trans( matrix_layout, nru, n, u, ldu, u_t, ldu_t );
107 }
108 if( ncc != 0 ) {
109 LAPACKE_cge_trans( matrix_layout, n, ncc, c, ldc, c_t, ldc_t );
110 }
111 /* Call LAPACK function and adjust info */
112 LAPACK_cbdsqr( &uplo, &n, &ncvt, &nru, &ncc, d, e, vt_t, &ldvt_t, u_t,
113 &ldu_t, c_t, &ldc_t, work, &info );
114 if( info < 0 ) {
115 info = info - 1;
116 }
117 /* Transpose output matrices */
118 if( ncvt != 0 ) {
119 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, ncvt, vt_t, ldvt_t, vt,
120 ldvt );
121 }
122 if( nru != 0 ) {
123 LAPACKE_cge_trans( LAPACK_COL_MAJOR, nru, n, u_t, ldu_t, u, ldu );
124 }
125 if( ncc != 0 ) {
126 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, ncc, c_t, ldc_t, c, ldc );
127 }
128 /* Release memory and exit */
129 if( ncc != 0 ) {
130 LAPACKE_free( c_t );
131 }
132exit_level_2:
133 if( nru != 0 ) {
134 LAPACKE_free( u_t );
135 }
136exit_level_1:
137 if( ncvt != 0 ) {
138 LAPACKE_free( vt_t );
139 }
140exit_level_0:
141 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
142 LAPACKE_xerbla( "LAPACKE_cbdsqr_work", info );
143 }
144 } else {
145 info = -1;
146 LAPACKE_xerbla( "LAPACKE_cbdsqr_work", info );
147 }
148 return info;
149}
#define LAPACK_cbdsqr(...)
Definition: lapack.h:330
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_float
Definition: lapack.h:46
#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
lapack_int LAPACKE_cbdsqr_work(int matrix_layout, char uplo, lapack_int n, lapack_int ncvt, lapack_int nru, lapack_int ncc, float *d, float *e, lapack_complex_float *vt, lapack_int ldvt, lapack_complex_float *u, lapack_int ldu, lapack_complex_float *c, lapack_int ldc, float *work)
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)