LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_chpgvx_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
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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
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28*****************************************************************************
29* Contents: Native middle-level C interface to LAPACK function chpgvx
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_chpgvx_work( int matrix_layout, lapack_int itype, char jobz,
36 char range, char uplo, lapack_int n,
38 lapack_complex_float* bp, float vl, float vu,
39 lapack_int il, lapack_int iu, float abstol,
40 lapack_int* m, float* w,
42 lapack_complex_float* work, float* rwork,
43 lapack_int* iwork, lapack_int* ifail )
44{
45 lapack_int info = 0;
46 if( matrix_layout == LAPACK_COL_MAJOR ) {
47 /* Call LAPACK function and adjust info */
48 LAPACK_chpgvx( &itype, &jobz, &range, &uplo, &n, ap, bp, &vl, &vu, &il,
49 &iu, &abstol, m, w, z, &ldz, work, rwork, iwork, ifail,
50 &info );
51 if( info < 0 ) {
52 info = info - 1;
53 }
54 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55 lapack_int ncols_z = ( LAPACKE_lsame( range, 'a' ) ||
56 LAPACKE_lsame( range, 'v' ) ) ? n :
57 ( LAPACKE_lsame( range, 'i' ) ? (iu-il+1) : 1);
58 lapack_int ldz_t = MAX(1,n);
59 lapack_complex_float* z_t = NULL;
60 lapack_complex_float* ap_t = NULL;
61 lapack_complex_float* bp_t = NULL;
62 /* Check leading dimension(s) */
63 if( ldz < ncols_z ) {
64 info = -17;
65 LAPACKE_xerbla( "LAPACKE_chpgvx_work", info );
66 return info;
67 }
68 /* Allocate memory for temporary array(s) */
69 if( LAPACKE_lsame( jobz, 'v' ) ) {
72 ldz_t * MAX(1,ncols_z) );
73 if( z_t == NULL ) {
75 goto exit_level_0;
76 }
77 }
78 ap_t = (lapack_complex_float*)
80 ( MAX(1,n) * MAX(2,n+1) ) / 2 );
81 if( ap_t == NULL ) {
83 goto exit_level_1;
84 }
85 bp_t = (lapack_complex_float*)
87 ( MAX(1,n) * MAX(2,n+1) ) / 2 );
88 if( bp_t == NULL ) {
90 goto exit_level_2;
91 }
92 /* Transpose input matrices */
93 LAPACKE_chp_trans( matrix_layout, uplo, n, ap, ap_t );
94 LAPACKE_chp_trans( matrix_layout, uplo, n, bp, bp_t );
95 /* Call LAPACK function and adjust info */
96 LAPACK_chpgvx( &itype, &jobz, &range, &uplo, &n, ap_t, bp_t, &vl, &vu,
97 &il, &iu, &abstol, m, w, z_t, &ldz_t, work, rwork, iwork,
98 ifail, &info );
99 if( info < 0 ) {
100 info = info - 1;
101 }
102 /* Transpose output matrices */
103 if( LAPACKE_lsame( jobz, 'v' ) ) {
104 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, ncols_z, z_t, ldz_t, z,
105 ldz );
106 }
107 LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
108 LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, bp_t, bp );
109 /* Release memory and exit */
110 LAPACKE_free( bp_t );
111exit_level_2:
112 LAPACKE_free( ap_t );
113exit_level_1:
114 if( LAPACKE_lsame( jobz, 'v' ) ) {
115 LAPACKE_free( z_t );
116 }
117exit_level_0:
118 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
119 LAPACKE_xerbla( "LAPACKE_chpgvx_work", info );
120 }
121 } else {
122 info = -1;
123 LAPACKE_xerbla( "LAPACKE_chpgvx_work", info );
124 }
125 return info;
126}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_chpgvx(...)
Definition: lapack.h:8752
#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_chpgvx_work(int matrix_layout, lapack_int itype, char jobz, char range, char uplo, lapack_int n, lapack_complex_float *ap, lapack_complex_float *bp, float vl, float vu, lapack_int il, lapack_int iu, float abstol, lapack_int *m, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork, lapack_int *iwork, lapack_int *ifail)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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)
void LAPACKE_chp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)