LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sormqr_work()

lapack_int LAPACKE_sormqr_work ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
const float *  a,
lapack_int  lda,
const float *  tau,
float *  c,
lapack_int  ldc,
float *  work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_sormqr_work.c.

40{
41 lapack_int info = 0;
42 lapack_int r;
43 lapack_int lda_t, ldc_t;
44 float *a_t = NULL, *c_t = NULL;
45 if( matrix_layout == LAPACK_COL_MAJOR ) {
46 /* Call LAPACK function and adjust info */
47 LAPACK_sormqr( &side, &trans, &m, &n, &k, a, &lda, tau, c, &ldc, work,
48 &lwork, &info );
49 if( info < 0 ) {
50 info = info - 1;
51 }
52 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53 r = LAPACKE_lsame( side, 'l' ) ? m : n;
54 lda_t = MAX(1,r);
55 ldc_t = MAX(1,m);
56 /* Check leading dimension(s) */
57 if( lda < k ) {
58 info = -8;
59 LAPACKE_xerbla( "LAPACKE_sormqr_work", info );
60 return info;
61 }
62 if( ldc < n ) {
63 info = -11;
64 LAPACKE_xerbla( "LAPACKE_sormqr_work", info );
65 return info;
66 }
67 /* Query optimal working array(s) size if requested */
68 if( lwork == -1 ) {
69 LAPACK_sormqr( &side, &trans, &m, &n, &k, a, &lda_t, tau, c, &ldc_t,
70 work, &lwork, &info );
71 return (info < 0) ? (info - 1) : info;
72 }
73 /* Allocate memory for temporary array(s) */
74 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,k) );
75 if( a_t == NULL ) {
77 goto exit_level_0;
78 }
79 c_t = (float*)LAPACKE_malloc( sizeof(float) * ldc_t * MAX(1,n) );
80 if( c_t == NULL ) {
82 goto exit_level_1;
83 }
84 /* Transpose input matrices */
85 LAPACKE_sge_trans( matrix_layout, r, k, a, lda, a_t, lda_t );
86 LAPACKE_sge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
87 /* Call LAPACK function and adjust info */
88 LAPACK_sormqr( &side, &trans, &m, &n, &k, a_t, &lda_t, tau, c_t, &ldc_t,
89 work, &lwork, &info );
90 if( info < 0 ) {
91 info = info - 1;
92 }
93 /* Transpose output matrices */
94 LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
95 /* Release memory and exit */
96 LAPACKE_free( c_t );
97exit_level_1:
98 LAPACKE_free( a_t );
99exit_level_0:
100 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
101 LAPACKE_xerbla( "LAPACKE_sormqr_work", info );
102 }
103 } else {
104 info = -1;
105 LAPACKE_xerbla( "LAPACKE_sormqr_work", info );
106 }
107 return info;
108}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_sormqr(...)
Definition: lapack.h:11701
#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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