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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 chpsvx
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33
34 #include "lapacke_utils.h"
35
LAPACKE_chpsvx_work(int matrix_layout,char fact,char uplo,lapack_int n,lapack_int nrhs,const lapack_complex_float * ap,lapack_complex_float * afp,lapack_int * ipiv,const lapack_complex_float * b,lapack_int ldb,lapack_complex_float * x,lapack_int ldx,float * rcond,float * ferr,float * berr,lapack_complex_float * work,float * rwork)36 lapack_int LAPACKE_chpsvx_work( int matrix_layout, char fact, char uplo,
37 lapack_int n, lapack_int nrhs,
38 const lapack_complex_float* ap,
39 lapack_complex_float* afp, lapack_int* ipiv,
40 const lapack_complex_float* b, lapack_int ldb,
41 lapack_complex_float* x, lapack_int ldx,
42 float* rcond, float* ferr, float* berr,
43 lapack_complex_float* work, float* rwork )
44 {
45 lapack_int info = 0;
46 if( matrix_layout == LAPACK_COL_MAJOR ) {
47 /* Call LAPACK function and adjust info */
48 LAPACK_chpsvx( &fact, &uplo, &n, &nrhs, ap, afp, ipiv, b, &ldb, x, &ldx,
49 rcond, ferr, berr, work, rwork, &info );
50 if( info < 0 ) {
51 info = info - 1;
52 }
53 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54 lapack_int ldb_t = MAX(1,n);
55 lapack_int ldx_t = MAX(1,n);
56 lapack_complex_float* b_t = NULL;
57 lapack_complex_float* x_t = NULL;
58 lapack_complex_float* ap_t = NULL;
59 lapack_complex_float* afp_t = NULL;
60 /* Check leading dimension(s) */
61 if( ldb < nrhs ) {
62 info = -10;
63 LAPACKE_xerbla( "LAPACKE_chpsvx_work", info );
64 return info;
65 }
66 if( ldx < nrhs ) {
67 info = -12;
68 LAPACKE_xerbla( "LAPACKE_chpsvx_work", info );
69 return info;
70 }
71 /* Allocate memory for temporary array(s) */
72 b_t = (lapack_complex_float*)
73 LAPACKE_malloc( sizeof(lapack_complex_float) *
74 ldb_t * MAX(1,nrhs) );
75 if( b_t == NULL ) {
76 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
77 goto exit_level_0;
78 }
79 x_t = (lapack_complex_float*)
80 LAPACKE_malloc( sizeof(lapack_complex_float) *
81 ldx_t * MAX(1,nrhs) );
82 if( x_t == NULL ) {
83 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
84 goto exit_level_1;
85 }
86 ap_t = (lapack_complex_float*)
87 LAPACKE_malloc( sizeof(lapack_complex_float) *
88 ( MAX(1,n) * MAX(2,n+1) ) / 2 );
89 if( ap_t == NULL ) {
90 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
91 goto exit_level_2;
92 }
93 afp_t = (lapack_complex_float*)
94 LAPACKE_malloc( sizeof(lapack_complex_float) *
95 ( MAX(1,n) * MAX(2,n+1) ) / 2 );
96 if( afp_t == NULL ) {
97 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
98 goto exit_level_3;
99 }
100 /* Transpose input matrices */
101 LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
102 LAPACKE_chp_trans( matrix_layout, uplo, n, ap, ap_t );
103 if( LAPACKE_lsame( fact, 'f' ) ) {
104 LAPACKE_chp_trans( matrix_layout, uplo, n, afp, afp_t );
105 }
106 /* Call LAPACK function and adjust info */
107 LAPACK_chpsvx( &fact, &uplo, &n, &nrhs, ap_t, afp_t, ipiv, b_t, &ldb_t,
108 x_t, &ldx_t, rcond, ferr, berr, work, rwork, &info );
109 if( info < 0 ) {
110 info = info - 1;
111 }
112 /* Transpose output matrices */
113 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
114 if( LAPACKE_lsame( fact, 'n' ) ) {
115 LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, afp_t, afp );
116 }
117 /* Release memory and exit */
118 LAPACKE_free( afp_t );
119 exit_level_3:
120 LAPACKE_free( ap_t );
121 exit_level_2:
122 LAPACKE_free( x_t );
123 exit_level_1:
124 LAPACKE_free( b_t );
125 exit_level_0:
126 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
127 LAPACKE_xerbla( "LAPACKE_chpsvx_work", info );
128 }
129 } else {
130 info = -1;
131 LAPACKE_xerbla( "LAPACKE_chpsvx_work", info );
132 }
133 return info;
134 }
135