LAPACK  3.10.1
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 35 of file lapacke_stgsja_work.c.

44 {
45  lapack_int info = 0;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_stgsja( &jobu, &jobv, &jobq, &m, &p, &n, &k, &l, a, &lda, b,
49  &ldb, &tola, &tolb, alpha, beta, u, &ldu, v, &ldv, q,
50  &ldq, work, ncycle, &info );
51  if( info < 0 ) {
52  info = info - 1;
53  }
54  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55  lapack_int lda_t = MAX(1,m);
56  lapack_int ldb_t = MAX(1,p);
57  lapack_int ldq_t = MAX(1,n);
58  lapack_int ldu_t = MAX(1,m);
59  lapack_int ldv_t = MAX(1,p);
60  float* a_t = NULL;
61  float* b_t = NULL;
62  float* u_t = NULL;
63  float* v_t = NULL;
64  float* q_t = NULL;
65  /* Check leading dimension(s) */
66  if( lda < n ) {
67  info = -11;
68  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
69  return info;
70  }
71  if( ldb < n ) {
72  info = -13;
73  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
74  return info;
75  }
76  if( ldq < n ) {
77  info = -23;
78  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
79  return info;
80  }
81  if( ldu < m ) {
82  info = -19;
83  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
84  return info;
85  }
86  if( ldv < p ) {
87  info = -21;
88  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
89  return info;
90  }
91  /* Allocate memory for temporary array(s) */
92  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
93  if( a_t == NULL ) {
95  goto exit_level_0;
96  }
97  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
98  if( b_t == NULL ) {
100  goto exit_level_1;
101  }
102  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
103  u_t = (float*)LAPACKE_malloc( sizeof(float) * ldu_t * MAX(1,m) );
104  if( u_t == NULL ) {
106  goto exit_level_2;
107  }
108  }
109  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
110  v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,p) );
111  if( v_t == NULL ) {
113  goto exit_level_3;
114  }
115  }
116  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
117  q_t = (float*)LAPACKE_malloc( sizeof(float) * ldq_t * MAX(1,n) );
118  if( q_t == NULL ) {
120  goto exit_level_4;
121  }
122  }
123  /* Transpose input matrices */
124  LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
125  LAPACKE_sge_trans( matrix_layout, p, n, b, ldb, b_t, ldb_t );
126  if( LAPACKE_lsame( jobu, 'u' ) ) {
127  LAPACKE_sge_trans( matrix_layout, m, m, u, ldu, u_t, ldu_t );
128  }
129  if( LAPACKE_lsame( jobv, 'v' ) ) {
130  LAPACKE_sge_trans( matrix_layout, p, p, v, ldv, v_t, ldv_t );
131  }
132  if( LAPACKE_lsame( jobq, 'q' ) ) {
133  LAPACKE_sge_trans( matrix_layout, n, n, q, ldq, q_t, ldq_t );
134  }
135  /* Call LAPACK function and adjust info */
136  LAPACK_stgsja( &jobu, &jobv, &jobq, &m, &p, &n, &k, &l, a_t, &lda_t,
137  b_t, &ldb_t, &tola, &tolb, alpha, beta, u_t, &ldu_t, v_t,
138  &ldv_t, q_t, &ldq_t, work, ncycle, &info );
139  if( info < 0 ) {
140  info = info - 1;
141  }
142  /* Transpose output matrices */
143  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
144  LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
145  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
146  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
147  }
148  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
149  LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, p, v_t, ldv_t, v, ldv );
150  }
151  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
152  LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
153  }
154  /* Release memory and exit */
155  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
156  LAPACKE_free( q_t );
157  }
158 exit_level_4:
159  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
160  LAPACKE_free( v_t );
161  }
162 exit_level_3:
163  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
164  LAPACKE_free( u_t );
165  }
166 exit_level_2:
167  LAPACKE_free( b_t );
168 exit_level_1:
169  LAPACKE_free( a_t );
170 exit_level_0:
171  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
172  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
173  }
174  } else {
175  info = -1;
176  LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
177  }
178  return info;
179 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_stgsja(...)
Definition: lapack.h:20301
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
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:46
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