LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_stgsja_work()

lapack_int LAPACKE_stgsja_work ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  p,
lapack_int  n,
lapack_int  k,
lapack_int  l,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
float  tola,
float  tolb,
float *  alpha,
float *  beta,
float *  u,
lapack_int  ldu,
float *  v,
lapack_int  ldv,
float *  q,
lapack_int  ldq,
float *  work,
lapack_int ncycle 
)

Definition at line 36 of file lapacke_stgsja_work.c.

45 {
46  lapack_int info = 0;
47  if( matrix_layout == LAPACK_COL_MAJOR ) {
48  /* Call LAPACK function and adjust info */
49  LAPACK_stgsja( &jobu, &jobv, &jobq, &m, &p, &n, &k, &l, a, &lda, b,
50  &ldb, &tola, &tolb, alpha, beta, u, &ldu, v, &ldv, q,
51  &ldq, work, ncycle, &info );
52  if( info < 0 ) {
53  info = info - 1;
54  }
55  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
56  lapack_int lda_t = MAX(1,m);
57  lapack_int ldb_t = MAX(1,p);
58  lapack_int ldq_t = MAX(1,n);
59  lapack_int ldu_t = MAX(1,m);
60  lapack_int ldv_t = MAX(1,p);
61  float* a_t = NULL;
62  float* b_t = NULL;
63  float* u_t = NULL;
64  float* v_t = NULL;
65  float* q_t = NULL;
66  /* Check leading dimension(s) */
67  if( lda < n ) {
68  info = -11;
69  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
70  return info;
71  }
72  if( ldb < n ) {
73  info = -13;
74  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
75  return info;
76  }
77  if( ldq < n ) {
78  info = -23;
79  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
80  return info;
81  }
82  if( ldu < m ) {
83  info = -19;
84  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
85  return info;
86  }
87  if( ldv < p ) {
88  info = -21;
89  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
90  return info;
91  }
92  /* Allocate memory for temporary array(s) */
93  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
94  if( a_t == NULL ) {
96  goto exit_level_0;
97  }
98  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
99  if( b_t == NULL ) {
101  goto exit_level_1;
102  }
103  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
104  u_t = (float*)LAPACKE_malloc( sizeof(float) * ldu_t * MAX(1,m) );
105  if( u_t == NULL ) {
107  goto exit_level_2;
108  }
109  }
110  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
111  v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,p) );
112  if( v_t == NULL ) {
114  goto exit_level_3;
115  }
116  }
117  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
118  q_t = (float*)LAPACKE_malloc( sizeof(float) * ldq_t * MAX(1,n) );
119  if( q_t == NULL ) {
121  goto exit_level_4;
122  }
123  }
124  /* Transpose input matrices */
125  LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
126  LAPACKE_sge_trans( matrix_layout, p, n, b, ldb, b_t, ldb_t );
127  if( LAPACKE_lsame( jobu, 'u' ) ) {
128  LAPACKE_sge_trans( matrix_layout, m, m, u, ldu, u_t, ldu_t );
129  }
130  if( LAPACKE_lsame( jobv, 'v' ) ) {
131  LAPACKE_sge_trans( matrix_layout, p, p, v, ldv, v_t, ldv_t );
132  }
133  if( LAPACKE_lsame( jobq, 'q' ) ) {
134  LAPACKE_sge_trans( matrix_layout, n, n, q, ldq, q_t, ldq_t );
135  }
136  /* Call LAPACK function and adjust info */
137  LAPACK_stgsja( &jobu, &jobv, &jobq, &m, &p, &n, &k, &l, a_t, &lda_t,
138  b_t, &ldb_t, &tola, &tolb, alpha, beta, u_t, &ldu_t, v_t,
139  &ldv_t, q_t, &ldq_t, work, ncycle, &info );
140  if( info < 0 ) {
141  info = info - 1;
142  }
143  /* Transpose output matrices */
144  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
145  LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
146  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
147  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
148  }
149  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
150  LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, p, v_t, ldv_t, v, ldv );
151  }
152  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
153  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
154  }
155  /* Release memory and exit */
156  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
157  LAPACKE_free( q_t );
158  }
159 exit_level_4:
160  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
161  LAPACKE_free( v_t );
162  }
163 exit_level_3:
164  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
165  LAPACKE_free( u_t );
166  }
167 exit_level_2:
168  LAPACKE_free( b_t );
169 exit_level_1:
170  LAPACKE_free( a_t );
171 exit_level_0:
172  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
173  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
174  }
175  } else {
176  info = -1;
177  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
178  }
179  return info;
180 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
void LAPACK_stgsja(char *jobu, char *jobv, char *jobq, lapack_int *m, lapack_int *p, lapack_int *n, lapack_int *k, lapack_int *l, float *a, lapack_int *lda, float *b, lapack_int *ldb, float *tola, float *tolb, float *alpha, float *beta, float *u, lapack_int *ldu, float *v, lapack_int *ldv, float *q, lapack_int *ldq, float *work, lapack_int *ncycle, lapack_int *info)
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