LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cggsvp3_work()

lapack_int LAPACKE_cggsvp3_work ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  p,
lapack_int  n,
lapack_complex_float *  a,
lapack_int  lda,
lapack_complex_float *  b,
lapack_int  ldb,
float  tola,
float  tolb,
lapack_int *  k,
lapack_int *  l,
lapack_complex_float *  u,
lapack_int  ldu,
lapack_complex_float *  v,
lapack_int  ldv,
lapack_complex_float *  q,
lapack_int  ldq,
lapack_int *  iwork,
float *  rwork,
lapack_complex_float *  tau,
lapack_complex_float *  work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_cggsvp3_work.c.

47{
48 lapack_int info = 0;
49 if( matrix_layout == LAPACK_COL_MAJOR ) {
50 /* Call LAPACK function and adjust info */
51 LAPACK_cggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a, &lda, b, &ldb, &tola,
52 &tolb, k, l, u, &ldu, v, &ldv, q, &ldq, iwork, rwork,
53 tau, work, &lwork, &info );
54 if( info < 0 ) {
55 info = info - 1;
56 }
57 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
58 lapack_int lda_t = MAX(1,m);
59 lapack_int ldb_t = MAX(1,p);
60 lapack_int ldq_t = MAX(1,n);
61 lapack_int ldu_t = MAX(1,m);
62 lapack_int ldv_t = MAX(1,p);
63 lapack_complex_float* a_t = NULL;
64 lapack_complex_float* b_t = NULL;
65 lapack_complex_float* u_t = NULL;
66 lapack_complex_float* v_t = NULL;
67 lapack_complex_float* q_t = NULL;
68 /* Check leading dimension(s) */
69 if( lda < n ) {
70 info = -9;
71 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
72 return info;
73 }
74 if( ldb < n ) {
75 info = -11;
76 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
77 return info;
78 }
79 if( ldq < n ) {
80 info = -21;
81 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
82 return info;
83 }
84 if( ldu < m ) {
85 info = -17;
86 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
87 return info;
88 }
89 if( ldv < p ) {
90 info = -19;
91 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
92 return info;
93 }
94 /* Query optimal working array(s) size if requested */
95 if( lwork == -1 ) {
96 LAPACK_cggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a, &lda_t, b,
97 &ldb_t, &tola, &tolb, k, l, u, &ldu_t, v, &ldv_t,
98 q, &ldq_t, iwork, rwork, tau, work, &lwork, &info );
99 return (info < 0) ? (info - 1) : info;
100 }
101 /* Allocate memory for temporary array(s) */
102 a_t = (lapack_complex_float*)
103 LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
104 if( a_t == NULL ) {
105 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
106 goto exit_level_0;
107 }
108 b_t = (lapack_complex_float*)
109 LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
110 if( b_t == NULL ) {
111 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
112 goto exit_level_1;
113 }
114 if( LAPACKE_lsame( jobu, 'u' ) ) {
115 u_t = (lapack_complex_float*)
116 LAPACKE_malloc( sizeof(lapack_complex_float) *
117 ldu_t * MAX(1,m) );
118 if( u_t == NULL ) {
119 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
120 goto exit_level_2;
121 }
122 }
123 if( LAPACKE_lsame( jobv, 'v' ) ) {
124 v_t = (lapack_complex_float*)
125 LAPACKE_malloc( sizeof(lapack_complex_float) *
126 ldv_t * MAX(1,p) );
127 if( v_t == NULL ) {
128 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
129 goto exit_level_3;
130 }
131 }
132 if( LAPACKE_lsame( jobq, 'q' ) ) {
133 q_t = (lapack_complex_float*)
134 LAPACKE_malloc( sizeof(lapack_complex_float) *
135 ldq_t * MAX(1,n) );
136 if( q_t == NULL ) {
137 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
138 goto exit_level_4;
139 }
140 }
141 /* Transpose input matrices */
142 LAPACKE_cge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
143 LAPACKE_cge_trans( matrix_layout, p, n, b, ldb, b_t, ldb_t );
144 /* Call LAPACK function and adjust info */
145 LAPACK_cggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a_t, &lda_t, b_t,
146 &ldb_t, &tola, &tolb, k, l, u_t, &ldu_t, v_t, &ldv_t,
147 q_t, &ldq_t, iwork, rwork, tau, work, &lwork, &info );
148 if( info < 0 ) {
149 info = info - 1;
150 }
151 /* Transpose output matrices */
152 LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
153 LAPACKE_cge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
154 if( LAPACKE_lsame( jobu, 'u' ) ) {
155 LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
156 }
157 if( LAPACKE_lsame( jobv, 'v' ) ) {
158 LAPACKE_cge_trans( LAPACK_COL_MAJOR, p, p, v_t, ldv_t, v, ldv );
159 }
160 if( LAPACKE_lsame( jobq, 'q' ) ) {
161 LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
162 }
163 /* Release memory and exit */
164 if( LAPACKE_lsame( jobq, 'q' ) ) {
165 LAPACKE_free( q_t );
166 }
167exit_level_4:
168 if( LAPACKE_lsame( jobv, 'v' ) ) {
169 LAPACKE_free( v_t );
170 }
171exit_level_3:
172 if( LAPACKE_lsame( jobu, 'u' ) ) {
173 LAPACKE_free( u_t );
174 }
175exit_level_2:
176 LAPACKE_free( b_t );
177exit_level_1:
178 LAPACKE_free( a_t );
179exit_level_0:
180 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
181 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
182 }
183 } else {
184 info = -1;
185 LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
186 }
187 return info;
188}
LAPACK_cggsvp3
#define LAPACK_cggsvp3(...)
Definition: lapack.h:5585
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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