LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sorcsd2by1_work()

lapack_int LAPACKE_sorcsd2by1_work ( int  matrix_layout,
char  jobu1,
char  jobu2,
char  jobv1t,
lapack_int  m,
lapack_int  p,
lapack_int  q,
float *  x11,
lapack_int  ldx11,
float *  x21,
lapack_int  ldx21,
float *  theta,
float *  u1,
lapack_int  ldu1,
float *  u2,
lapack_int  ldu2,
float *  v1t,
lapack_int  ldv1t,
float *  work,
lapack_int  lwork,
lapack_int *  iwork 
)

Definition at line 35 of file lapacke_sorcsd2by1_work.c.

43{
44 lapack_int info = 0;
45 if( matrix_layout == LAPACK_COL_MAJOR ) {
46 /* Call LAPACK function and adjust info */
47 LAPACK_sorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p,
48 &q, x11, &ldx11, x21, &ldx21,
49 theta, u1, &ldu1, u2, &ldu2, v1t, &ldv1t,
50 work, &lwork, iwork, &info );
51 if( info < 0 ) {
52 info = info - 1;
53 }
54 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55 lapack_int nrows_x11 = p;
56 lapack_int nrows_x21 = m-p;
57 lapack_int nrows_u1 = ( LAPACKE_lsame( jobu1, 'y' ) ? p : 1);
58 lapack_int nrows_u2 = ( LAPACKE_lsame( jobu2, 'y' ) ? m-p : 1);
59 lapack_int nrows_v1t = ( LAPACKE_lsame( jobv1t, 'y' ) ? q : 1);
60 lapack_int ldu1_t = MAX(1,nrows_u1);
61 lapack_int ldu2_t = MAX(1,nrows_u2);
62 lapack_int ldv1t_t = MAX(1,nrows_v1t);
63 lapack_int ldx11_t = MAX(1,nrows_x11);
64 lapack_int ldx21_t = MAX(1,nrows_x21);
65 float* x11_t = NULL;
66 float* x21_t = NULL;
67 float* u1_t = NULL;
68 float* u2_t = NULL;
69 float* v1t_t = NULL;
70 /* Check leading dimension(s) */
71 if( ldu1 < p ) {
72 info = -21;
73 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
74 return info;
75 }
76 if( ldu2 < m-p ) {
77 info = -23;
78 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
79 return info;
80 }
81 if( ldv1t < q ) {
82 info = -25;
83 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
84 return info;
85 }
86 if( ldx11 < q ) {
87 info = -12;
88 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
89 return info;
90 }
91 if( ldx21 < q ) {
92 info = -16;
93 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
94 return info;
95 }
96 /* Query optimal working array(s) size if requested */
97 if( lwork == -1 ) {
98 LAPACK_sorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p,
99 &q, x11, &ldx11_t, x21, &ldx21_t,
100 theta, u1, &ldu1_t, u2, &ldu2_t, v1t, &ldv1t_t,
101 work, &lwork, iwork, &info );
102 return (info < 0) ? (info - 1) : info;
103 }
104 /* Allocate memory for temporary array(s) */
105 x11_t = (float*)LAPACKE_malloc( sizeof(float) * ldx11_t * MAX(1,q) );
106 if( x11_t == NULL ) {
107 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
108 goto exit_level_0;
109 }
110 x21_t = (float*)LAPACKE_malloc( sizeof(float) * ldx21_t * MAX(1,q) );
111 if( x21_t == NULL ) {
112 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
113 goto exit_level_1;
114 }
115 if( LAPACKE_lsame( jobu1, 'y' ) ) {
116 u1_t = (float*)
117 LAPACKE_malloc( sizeof(float) * ldu1_t * MAX(1,p) );
118 if( u1_t == NULL ) {
119 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
120 goto exit_level_2;
121 }
122 }
123 if( LAPACKE_lsame( jobu2, 'y' ) ) {
124 u2_t = (float*)
125 LAPACKE_malloc( sizeof(float) * ldu2_t * MAX(1,m-p) );
126 if( u2_t == NULL ) {
127 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
128 goto exit_level_3;
129 }
130 }
131 if( LAPACKE_lsame( jobv1t, 'y' ) ) {
132 v1t_t = (float*)
133 LAPACKE_malloc( sizeof(float) * ldv1t_t * MAX(1,q) );
134 if( v1t_t == NULL ) {
135 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
136 goto exit_level_4;
137 }
138 }
139 /* Transpose input matrices */
140 LAPACKE_sge_trans( matrix_layout, nrows_x11, q, x11, ldx11, x11_t,
141 ldx11_t );
142 LAPACKE_sge_trans( matrix_layout, nrows_x21, q, x21, ldx21, x21_t,
143 ldx21_t );
144 /* Call LAPACK function and adjust info */
145 LAPACK_sorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p,
146 &q, x11_t, &ldx11_t, x21_t, &ldx21_t,
147 theta, u1_t, &ldu1_t, u2_t, &ldu2_t, v1t_t, &ldv1t_t,
148 work, &lwork, iwork, &info );
149 if( info < 0 ) {
150 info = info - 1;
151 }
152 /* Transpose output matrices */
153 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_x11, q, x11_t, ldx11_t, x11,
154 ldx11 );
155 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_x21, q, x21_t, ldx21_t, x21,
156 ldx21 );
157 if( LAPACKE_lsame( jobu1, 'y' ) ) {
158 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_u1, p, u1_t, ldu1_t, u1,
159 ldu1 );
160 }
161 if( LAPACKE_lsame( jobu2, 'y' ) ) {
162 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_u2, m-p, u2_t, ldu2_t,
163 u2, ldu2 );
164 }
165 if( LAPACKE_lsame( jobv1t, 'y' ) ) {
166 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_v1t, q, v1t_t, ldv1t_t,
167 v1t, ldv1t );
168 }
169 /* Release memory and exit */
170 if( LAPACKE_lsame( jobv1t, 'y' ) ) {
171 LAPACKE_free( v1t_t );
172 }
173exit_level_4:
174 if( LAPACKE_lsame( jobu2, 'y' ) ) {
175 LAPACKE_free( u2_t );
176 }
177exit_level_3:
178 if( LAPACKE_lsame( jobu1, 'y' ) ) {
179 LAPACKE_free( u1_t );
180 }
181exit_level_2:
182 LAPACKE_free( x21_t );
183exit_level_1:
184 LAPACKE_free( x11_t );
185exit_level_0:
186 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
187 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
188 }
189 } else {
190 info = -1;
191 LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info );
192 }
193 return info;
194}
LAPACK_sorcsd2by1
#define LAPACK_sorcsd2by1(...)
Definition: lapack.h:11341
lapack_int
#define lapack_int
Definition: lapack.h:87
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
LAPACKE_sge_trans
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
Definition: lapacke_sge_trans.c:39
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
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