LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_chbgvx_work()

lapack_int LAPACKE_chbgvx_work ( int  matrix_layout,
char  jobz,
char  range,
char  uplo,
lapack_int  n,
lapack_int  ka,
lapack_int  kb,
lapack_complex_float *  ab,
lapack_int  ldab,
lapack_complex_float *  bb,
lapack_int  ldbb,
lapack_complex_float *  q,
lapack_int  ldq,
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 
)

Definition at line 35 of file lapacke_chbgvx_work.c.

46{
47 lapack_int info = 0;
48 if( matrix_layout == LAPACK_COL_MAJOR ) {
49 /* Call LAPACK function and adjust info */
50 LAPACK_chbgvx( &jobz, &range, &uplo, &n, &ka, &kb, ab, &ldab, bb, &ldbb,
51 q, &ldq, &vl, &vu, &il, &iu, &abstol, m, w, z, &ldz,
52 work, rwork, iwork, ifail, &info );
53 if( info < 0 ) {
54 info = info - 1;
55 }
56 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
57 lapack_int ldab_t = MAX(1,ka+1);
58 lapack_int ldbb_t = MAX(1,kb+1);
59 lapack_int ldq_t = MAX(1,n);
60 lapack_int ldz_t = MAX(1,n);
61 lapack_complex_float* ab_t = NULL;
62 lapack_complex_float* bb_t = NULL;
63 lapack_complex_float* q_t = NULL;
64 lapack_complex_float* z_t = NULL;
65 /* Check leading dimension(s) */
66 if( ldab < n ) {
67 info = -9;
68 LAPACKE_xerbla( "LAPACKE_chbgvx_work", info );
69 return info;
70 }
71 if( ldbb < n ) {
72 info = -11;
73 LAPACKE_xerbla( "LAPACKE_chbgvx_work", info );
74 return info;
75 }
76 if( ldq < n ) {
77 info = -13;
78 LAPACKE_xerbla( "LAPACKE_chbgvx_work", info );
79 return info;
80 }
81 if( ldz < n ) {
82 info = -22;
83 LAPACKE_xerbla( "LAPACKE_chbgvx_work", info );
84 return info;
85 }
86 /* Allocate memory for temporary array(s) */
87 ab_t = (lapack_complex_float*)
88 LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
89 if( ab_t == NULL ) {
90 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
91 goto exit_level_0;
92 }
93 bb_t = (lapack_complex_float*)
94 LAPACKE_malloc( sizeof(lapack_complex_float) * ldbb_t * MAX(1,n) );
95 if( bb_t == NULL ) {
96 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
97 goto exit_level_1;
98 }
99 if( LAPACKE_lsame( jobz, 'v' ) ) {
100 q_t = (lapack_complex_float*)
101 LAPACKE_malloc( sizeof(lapack_complex_float) *
102 ldq_t * MAX(1,n) );
103 if( q_t == NULL ) {
104 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
105 goto exit_level_2;
106 }
107 }
108 if( LAPACKE_lsame( jobz, 'v' ) ) {
109 z_t = (lapack_complex_float*)
110 LAPACKE_malloc( sizeof(lapack_complex_float) *
111 ldz_t * MAX(1,n) );
112 if( z_t == NULL ) {
113 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
114 goto exit_level_3;
115 }
116 }
117 /* Transpose input matrices */
118 LAPACKE_chb_trans( matrix_layout, uplo, n, ka, ab, ldab, ab_t, ldab_t );
119 LAPACKE_chb_trans( matrix_layout, uplo, n, kb, bb, ldbb, bb_t, ldbb_t );
120 /* Call LAPACK function and adjust info */
121 LAPACK_chbgvx( &jobz, &range, &uplo, &n, &ka, &kb, ab_t, &ldab_t, bb_t,
122 &ldbb_t, q_t, &ldq_t, &vl, &vu, &il, &iu, &abstol, m, w,
123 z_t, &ldz_t, work, rwork, iwork, ifail, &info );
124 if( info < 0 ) {
125 info = info - 1;
126 }
127 /* Transpose output matrices */
128 LAPACKE_chb_trans( LAPACK_COL_MAJOR, uplo, n, ka, ab_t, ldab_t, ab,
129 ldab );
130 LAPACKE_chb_trans( LAPACK_COL_MAJOR, uplo, n, kb, bb_t, ldbb_t, bb,
131 ldbb );
132 if( LAPACKE_lsame( jobz, 'v' ) ) {
133 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
134 }
135 if( LAPACKE_lsame( jobz, 'v' ) ) {
136 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
137 }
138 /* Release memory and exit */
139 if( LAPACKE_lsame( jobz, 'v' ) ) {
140 LAPACKE_free( z_t );
141 }
142exit_level_3:
143 if( LAPACKE_lsame( jobz, 'v' ) ) {
144 LAPACKE_free( q_t );
145 }
146exit_level_2:
147 LAPACKE_free( bb_t );
148exit_level_1:
149 LAPACKE_free( ab_t );
150exit_level_0:
151 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
152 LAPACKE_xerbla( "LAPACKE_chbgvx_work", info );
153 }
154 } else {
155 info = -1;
156 LAPACKE_xerbla( "LAPACKE_chbgvx_work", info );
157 }
158 return info;
159}
LAPACK_chbgvx
#define LAPACK_chbgvx(...)
Definition: lapack.h:6547
lapack_int
#define lapack_int
Definition: lapack.h:87
lapack_complex_float
#define lapack_complex_float
Definition: lapack.h:46
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
LAPACKE_chb_trans
void LAPACKE_chb_trans(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
Definition: lapacke_chb_trans.c:39
LAPACKE_cge_trans
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)
Definition: lapacke_cge_trans.c:39
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