LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_sgees_work.c
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1/*****************************************************************************
2 Copyright (c) 2014, Intel Corp.
3 All rights reserved.
4
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6 modification, are permitted provided that the following conditions are met:
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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
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13 * Neither the name of Intel Corporation nor the names of its contributors
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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 sgees
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_sgees_work( int matrix_layout, char jobvs, char sort,
36 LAPACK_S_SELECT2 select, lapack_int n, float* a,
37 lapack_int lda, lapack_int* sdim, float* wr,
38 float* wi, float* vs, lapack_int ldvs,
39 float* work, lapack_int lwork,
40 lapack_logical* bwork )
41{
42 lapack_int info = 0;
43 if( matrix_layout == LAPACK_COL_MAJOR ) {
44 /* Call LAPACK function and adjust info */
45 LAPACK_sgees( &jobvs, &sort, select, &n, a, &lda, sdim, wr, wi, vs,
46 &ldvs, work, &lwork, bwork, &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,n);
52 lapack_int ldvs_t = MAX(1,n);
53 float* a_t = NULL;
54 float* vs_t = NULL;
55 /* Check leading dimension(s) */
56 if( lda < n ) {
57 info = -7;
58 LAPACKE_xerbla( "LAPACKE_sgees_work", info );
59 return info;
60 }
61 if( ldvs < n ) {
62 info = -12;
63 LAPACKE_xerbla( "LAPACKE_sgees_work", info );
64 return info;
65 }
66 /* Query optimal working array(s) size if requested */
67 if( lwork == -1 ) {
68 LAPACK_sgees( &jobvs, &sort, select, &n, a, &lda_t, sdim, wr, wi,
69 vs, &ldvs_t, work, &lwork, bwork, &info );
70 return (info < 0) ? (info - 1) : info;
71 }
72 /* Allocate memory for temporary array(s) */
73 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
74 if( a_t == NULL ) {
76 goto exit_level_0;
77 }
78 if( LAPACKE_lsame( jobvs, 'v' ) ) {
79 vs_t = (float*)LAPACKE_malloc( sizeof(float) * ldvs_t * MAX(1,n) );
80 if( vs_t == NULL ) {
82 goto exit_level_1;
83 }
84 }
85 /* Transpose input matrices */
86 LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
87 /* Call LAPACK function and adjust info */
88 LAPACK_sgees( &jobvs, &sort, select, &n, a_t, &lda_t, sdim, wr, wi,
89 vs_t, &ldvs_t, work, &lwork, bwork, &info );
90 if( info < 0 ) {
91 info = info - 1;
92 }
93 /* Transpose output matrices */
94 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
95 if( LAPACKE_lsame( jobvs, 'v' ) ) {
96 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, vs_t, ldvs_t, vs, ldvs );
97 }
98 /* Release memory and exit */
99 if( LAPACKE_lsame( jobvs, 'v' ) ) {
100 LAPACKE_free( vs_t );
101 }
102exit_level_1:
103 LAPACKE_free( a_t );
104exit_level_0:
105 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
106 LAPACKE_xerbla( "LAPACKE_sgees_work", info );
107 }
108 } else {
109 info = -1;
110 LAPACKE_xerbla( "LAPACKE_sgees_work", info );
111 }
112 return info;
113}
#define lapack_int
Definition: lapack.h:87
lapack_logical(* LAPACK_S_SELECT2)(const float *, const float *)
Definition: lapack.h:119
#define LAPACK_sgees(...)
Definition: lapack.h:1691
#define lapack_logical
Definition: lapack.h:103
#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_sgees_work(int matrix_layout, char jobvs, char sort, LAPACK_S_SELECT2 select, lapack_int n, float *a, lapack_int lda, lapack_int *sdim, float *wr, float *wi, float *vs, lapack_int ldvs, float *work, lapack_int lwork, lapack_logical *bwork)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46