LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_zsysv_rook_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:
7
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
20 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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27 THE POSSIBILITY OF SUCH DAMAGE.
28******************************************************************************
29* Contents: Native middle-level C interface to LAPACK function zsysv_rook
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_zsysv_rook_work( int matrix_layout, char uplo, lapack_int n,
37 lapack_int lda, lapack_int* ipiv,
40 lapack_int lwork )
41{
42 lapack_int info = 0;
43 if( matrix_layout == LAPACK_COL_MAJOR ) {
44 /* Call LAPACK function and adjust info */
45 LAPACK_zsysv_rook( &uplo, &n, &nrhs, a, &lda, ipiv, b, &ldb, work,
46 &lwork, &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 ldb_t = MAX(1,n);
53 lapack_complex_double* a_t = NULL;
54 lapack_complex_double* b_t = NULL;
55 /* Check leading dimension(s) */
56 if( lda < n ) {
57 info = -6;
58 LAPACKE_xerbla( "LAPACKE_zsysv_rook_work", info );
59 return info;
60 }
61 if( ldb < nrhs ) {
62 info = -9;
63 LAPACKE_xerbla( "LAPACKE_zsysv_rook_work", info );
64 return info;
65 }
66 /* Query optimal working array(s) size if requested */
67 if( lwork == -1 ) {
68 LAPACK_zsysv_rook( &uplo, &n, &nrhs, a, &lda_t, ipiv, b, &ldb_t,
69 work, &lwork, &info );
70 return (info < 0) ? (info - 1) : info;
71 }
72 /* Allocate memory for temporary array(s) */
74 LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
75 if( a_t == NULL ) {
77 goto exit_level_0;
78 }
81 ldb_t * MAX(1,nrhs) );
82 if( b_t == NULL ) {
84 goto exit_level_1;
85 }
86 /* Transpose input matrices */
87 LAPACKE_zsy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
88 LAPACKE_zge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
89 /* Call LAPACK function and adjust info */
90 LAPACK_zsysv_rook( &uplo, &n, &nrhs, a_t, &lda_t, ipiv, b_t, &ldb_t,
91 work, &lwork, &info );
92 if( info < 0 ) {
93 info = info - 1;
94 }
95 /* Transpose output matrices */
96 LAPACKE_zsy_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
97 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
98 /* Release memory and exit */
99 LAPACKE_free( b_t );
100exit_level_1:
101 LAPACKE_free( a_t );
102exit_level_0:
103 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
104 LAPACKE_xerbla( "LAPACKE_zsysv_rook_work", info );
105 }
106 } else {
107 info = -1;
108 LAPACKE_xerbla( "LAPACKE_zsysv_rook_work", info );
109 }
110 return info;
111}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_zsysv_rook(...)
Definition: lapack.h:18150
#define lapack_complex_double
Definition: lapack.h:64
#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)
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_zsy_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
lapack_int LAPACKE_zsysv_rook_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, lapack_complex_double *a, lapack_int lda, lapack_int *ipiv, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *work, lapack_int lwork)