LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ LAPACKE_dgetrf_work()

lapack_int LAPACKE_dgetrf_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
double *  a,
lapack_int  lda,
lapack_int ipiv 
)

Definition at line 35 of file lapacke_dgetrf_work.c.

37{
38 lapack_int info = 0;
39 if( matrix_layout == LAPACK_COL_MAJOR ) {
40 /* Call LAPACK function and adjust info */
41 LAPACK_dgetrf( &m, &n, a, &lda, ipiv, &info );
42 if( info < 0 ) {
43 info = info - 1;
44 }
45 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
46 lapack_int lda_t = MAX(1,m);
47 double* a_t = NULL;
48 /* Check leading dimension(s) */
49 if( lda < n ) {
50 info = -5;
51 LAPACKE_xerbla( "LAPACKE_dgetrf_work", info );
52 return info;
53 }
54 /* Allocate memory for temporary array(s) */
55 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
56 if( a_t == NULL ) {
58 goto exit_level_0;
59 }
60 /* Transpose input matrices */
61 LAPACKE_dge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
62 /* Call LAPACK function and adjust info */
63 LAPACK_dgetrf( &m, &n, a_t, &lda_t, ipiv, &info );
64 if( info < 0 ) {
65 info = info - 1;
66 }
67 /* Transpose output matrices */
68 LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
69 /* Release memory and exit */
70 LAPACKE_free( a_t );
71exit_level_0:
72 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
73 LAPACKE_xerbla( "LAPACKE_dgetrf_work", info );
74 }
75 } else {
76 info = -1;
77 LAPACKE_xerbla( "LAPACKE_dgetrf_work", info );
78 }
79 return info;
80}
#define LAPACK_dgetrf
Definition: lapack.h:3972
#define lapack_int
Definition: lapack.h:87
#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
void LAPACKE_xerbla(const char *name, lapack_int info)
#define MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
Here is the call graph for this function:
Here is the caller graph for this function: