LAPACK  3.5.0
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lapacke_cgemqrt_work.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_cgemqrt_work (int matrix_order, char side, char trans, lapack_int m, lapack_int n, lapack_int k, lapack_int nb, const lapack_complex_float *v, lapack_int ldv, const lapack_complex_float *t, lapack_int ldt, lapack_complex_float *c, lapack_int ldc, lapack_complex_float *work)

Function/Subroutine Documentation

lapack_int LAPACKE_cgemqrt_work ( int  matrix_order,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  nb,
const lapack_complex_float v,
lapack_int  ldv,
const lapack_complex_float t,
lapack_int  ldt,
lapack_complex_float c,
lapack_int  ldc,
lapack_complex_float work 
)

Definition at line 36 of file lapacke_cgemqrt_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_cgemqrt( &side, &trans, &m, &n, &k, &nb, v, &ldv, t, &ldt, c,
&ldc, work, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldc_t = MAX(1,m);
lapack_int ldt_t = MAX(1,ldt);
lapack_int ldv_t = MAX(1,ldv);
lapack_complex_float* v_t = NULL;
lapack_complex_float* t_t = NULL;
lapack_complex_float* c_t = NULL;
/* Check leading dimension(s) */
if( ldc < n ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_cgemqrt_work", info );
return info;
}
if( ldt < nb ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_cgemqrt_work", info );
return info;
}
if( ldv < k ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_cgemqrt_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
LAPACKE_malloc( sizeof(lapack_complex_float) * ldv_t * MAX(1,k) );
if( v_t == NULL ) {
goto exit_level_0;
}
LAPACKE_malloc( sizeof(lapack_complex_float) * ldt_t * MAX(1,nb) );
if( t_t == NULL ) {
goto exit_level_1;
}
LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
if( c_t == NULL ) {
goto exit_level_2;
}
/* Transpose input matrices */
LAPACKE_cge_trans( matrix_order, ldv, k, v, ldv, v_t, ldv_t );
LAPACKE_cge_trans( matrix_order, ldt, nb, t, ldt, t_t, ldt_t );
LAPACKE_cge_trans( matrix_order, m, n, c, ldc, c_t, ldc_t );
/* Call LAPACK function and adjust info */
LAPACK_cgemqrt( &side, &trans, &m, &n, &k, &nb, v_t, &ldv_t, t_t,
&ldt_t, c_t, &ldc_t, work, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
/* Release memory and exit */
LAPACKE_free( c_t );
exit_level_2:
LAPACKE_free( t_t );
exit_level_1:
LAPACKE_free( v_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_cgemqrt_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_cgemqrt_work", info );
}
return info;
}

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