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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 csysvx
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
34 #include "lapacke_utils.h"
36 lapack_int LAPACKE_csysvx_work( int matrix_layout, char fact, char uplo,
37 lapack_int n, lapack_int nrhs,
38 const lapack_complex_float* a, lapack_int lda,
39 lapack_complex_float* af, lapack_int ldaf,
40 lapack_int* ipiv, const lapack_complex_float* b,
41 lapack_int ldb, lapack_complex_float* x,
42 lapack_int ldx, float* rcond, float* ferr,
43 float* berr, lapack_complex_float* work,
44 lapack_int lwork, float* rwork )
47 if( matrix_layout == LAPACK_COL_MAJOR ) {
48 /* Call LAPACK function and adjust info */
49 LAPACK_csysvx( &fact, &uplo, &n, &nrhs, a, &lda, af, &ldaf, ipiv, b,
50 &ldb, x, &ldx, rcond, ferr, berr, work, &lwork, rwork,
55 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
56 lapack_int lda_t = MAX(1,n);
57 lapack_int ldaf_t = MAX(1,n);
58 lapack_int ldb_t = MAX(1,n);
59 lapack_int ldx_t = MAX(1,n);
60 lapack_complex_float* a_t = NULL;
61 lapack_complex_float* af_t = NULL;
62 lapack_complex_float* b_t = NULL;
63 lapack_complex_float* x_t = NULL;
64 /* Check leading dimension(s) */
67 LAPACKE_xerbla( "LAPACKE_csysvx_work", info );
72 LAPACKE_xerbla( "LAPACKE_csysvx_work", info );
77 LAPACKE_xerbla( "LAPACKE_csysvx_work", info );
82 LAPACKE_xerbla( "LAPACKE_csysvx_work", info );
85 /* Query optimal working array(s) size if requested */
87 LAPACK_csysvx( &fact, &uplo, &n, &nrhs, a, &lda_t, af, &ldaf_t,
88 ipiv, b, &ldb_t, x, &ldx_t, rcond, ferr, berr, work,
89 &lwork, rwork, &info );
90 return (info < 0) ? (info - 1) : info;
92 /* Allocate memory for temporary array(s) */
93 a_t = (lapack_complex_float*)
94 LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
96 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
99 af_t = (lapack_complex_float*)
100 LAPACKE_malloc( sizeof(lapack_complex_float) * ldaf_t * MAX(1,n) );
102 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
105 b_t = (lapack_complex_float*)
106 LAPACKE_malloc( sizeof(lapack_complex_float) *
107 ldb_t * MAX(1,nrhs) );
109 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
112 x_t = (lapack_complex_float*)
113 LAPACKE_malloc( sizeof(lapack_complex_float) *
114 ldx_t * MAX(1,nrhs) );
116 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
119 /* Transpose input matrices */
120 LAPACKE_csy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
121 if( LAPACKE_lsame( fact, 'f' ) ) {
122 LAPACKE_csy_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
124 LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
125 /* Call LAPACK function and adjust info */
126 LAPACK_csysvx( &fact, &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
127 ipiv, b_t, &ldb_t, x_t, &ldx_t, rcond, ferr, berr, work,
128 &lwork, rwork, &info );
132 /* Transpose output matrices */
133 if( LAPACKE_lsame( fact, 'n' ) ) {
134 LAPACKE_csy_trans( LAPACK_COL_MAJOR, uplo, n, af_t, ldaf_t, af,
137 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
138 /* Release memory and exit */
143 LAPACKE_free( af_t );
147 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
148 LAPACKE_xerbla( "LAPACKE_csysvx_work", info );
152 LAPACKE_xerbla( "LAPACKE_csysvx_work", info );