LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cggesx_work()

lapack_int LAPACKE_cggesx_work ( int  matrix_layout,
char  jobvsl,
char  jobvsr,
char  sort,
LAPACK_C_SELECT2  selctg,
char  sense,
lapack_int  n,
lapack_complex_float *  a,
lapack_int  lda,
lapack_complex_float *  b,
lapack_int  ldb,
lapack_int *  sdim,
lapack_complex_float *  alpha,
lapack_complex_float *  beta,
lapack_complex_float *  vsl,
lapack_int  ldvsl,
lapack_complex_float *  vsr,
lapack_int  ldvsr,
float *  rconde,
float *  rcondv,
lapack_complex_float *  work,
lapack_int  lwork,
float *  rwork,
lapack_int *  iwork,
lapack_int  liwork,
lapack_logical *  bwork 
)

Definition at line 35 of file lapacke_cggesx_work.c.

48{
49 lapack_int info = 0;
50 if( matrix_layout == LAPACK_COL_MAJOR ) {
51 /* Call LAPACK function and adjust info */
52 LAPACK_cggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a, &lda, b,
53 &ldb, sdim, alpha, beta, vsl, &ldvsl, vsr, &ldvsr,
54 rconde, rcondv, work, &lwork, rwork, iwork, &liwork,
55 bwork, &info );
56 if( info < 0 ) {
57 info = info - 1;
58 }
59 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
60 lapack_int lda_t = MAX(1,n);
61 lapack_int ldb_t = MAX(1,n);
62 lapack_int ldvsl_t = MAX(1,n);
63 lapack_int ldvsr_t = MAX(1,n);
64 lapack_complex_float* a_t = NULL;
65 lapack_complex_float* b_t = NULL;
66 lapack_complex_float* vsl_t = NULL;
67 lapack_complex_float* vsr_t = NULL;
68 /* Check leading dimension(s) */
69 if( lda < n ) {
70 info = -9;
71 LAPACKE_xerbla( "LAPACKE_cggesx_work", info );
72 return info;
73 }
74 if( ldb < n ) {
75 info = -11;
76 LAPACKE_xerbla( "LAPACKE_cggesx_work", info );
77 return info;
78 }
79 if( ldvsl < 1 || ( LAPACKE_lsame( jobvsl, 'v' ) && ldvsl < n ) ) {
80 info = -16;
81 LAPACKE_xerbla( "LAPACKE_cggesx_work", info );
82 return info;
83 }
84 if( ldvsr < 1 || ( LAPACKE_lsame( jobvsr, 'v' ) && ldvsr < n ) ) {
85 info = -18;
86 LAPACKE_xerbla( "LAPACKE_cggesx_work", info );
87 return info;
88 }
89 /* Query optimal working array(s) size if requested */
90 if( liwork == -1 || lwork == -1 ) {
91 LAPACK_cggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a,
92 &lda_t, b, &ldb_t, sdim, alpha, beta, vsl, &ldvsl_t,
93 vsr, &ldvsr_t, rconde, rcondv, work, &lwork, rwork,
94 iwork, &liwork, bwork, &info );
95 return (info < 0) ? (info - 1) : info;
96 }
97 /* Allocate memory for temporary array(s) */
98 a_t = (lapack_complex_float*)
99 LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
100 if( a_t == NULL ) {
101 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
102 goto exit_level_0;
103 }
104 b_t = (lapack_complex_float*)
105 LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
106 if( b_t == NULL ) {
107 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
108 goto exit_level_1;
109 }
110 if( LAPACKE_lsame( jobvsl, 'v' ) ) {
111 vsl_t = (lapack_complex_float*)
112 LAPACKE_malloc( sizeof(lapack_complex_float) *
113 ldvsl_t * MAX(1,n) );
114 if( vsl_t == NULL ) {
115 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
116 goto exit_level_2;
117 }
118 }
119 if( LAPACKE_lsame( jobvsr, 'v' ) ) {
120 vsr_t = (lapack_complex_float*)
121 LAPACKE_malloc( sizeof(lapack_complex_float) *
122 ldvsr_t * MAX(1,n) );
123 if( vsr_t == NULL ) {
124 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
125 goto exit_level_3;
126 }
127 }
128 /* Transpose input matrices */
129 LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
130 LAPACKE_cge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
131 /* Call LAPACK function and adjust info */
132 LAPACK_cggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a_t, &lda_t,
133 b_t, &ldb_t, sdim, alpha, beta, vsl_t, &ldvsl_t, vsr_t,
134 &ldvsr_t, rconde, rcondv, work, &lwork, rwork, iwork,
135 &liwork, bwork, &info );
136 if( info < 0 ) {
137 info = info - 1;
138 }
139 /* Transpose output matrices */
140 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
141 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
142 if( LAPACKE_lsame( jobvsl, 'v' ) ) {
143 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, vsl_t, ldvsl_t, vsl,
144 ldvsl );
145 }
146 if( LAPACKE_lsame( jobvsr, 'v' ) ) {
147 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, vsr_t, ldvsr_t, vsr,
148 ldvsr );
149 }
150 /* Release memory and exit */
151 if( LAPACKE_lsame( jobvsr, 'v' ) ) {
152 LAPACKE_free( vsr_t );
153 }
154exit_level_3:
155 if( LAPACKE_lsame( jobvsl, 'v' ) ) {
156 LAPACKE_free( vsl_t );
157 }
158exit_level_2:
159 LAPACKE_free( b_t );
160exit_level_1:
161 LAPACKE_free( a_t );
162exit_level_0:
163 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
164 LAPACKE_xerbla( "LAPACKE_cggesx_work", info );
165 }
166 } else {
167 info = -1;
168 LAPACKE_xerbla( "LAPACKE_cggesx_work", info );
169 }
170 return info;
171}
LAPACK_cggesx
#define LAPACK_cggesx(...)
Definition: lapack.h:4575
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_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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