BOOST_FORCEINLINE result_type operator()( A0& a0, A1& s, A2& u,A3 &vt, A4 const jobu
, A5 const jobvt) const
{
result_type that;
details::workspace<typename A0::value_type> w;
nt2_la_int m = nt2::height(a0);
nt2_la_int n = nt2::width(a0);
nt2_la_int ld = a0.leading_size();
nt2_la_int ldu = u.leading_size() > 1 ? u.leading_size() : 1 ;
nt2_la_int ldvt= vt.leading_size() > 1 ? vt.leading_size() : 1 ;
nt2_la_int lwork_query = -1;
char c = std::toupper(jobu);
magma_vec_t magma_jobu = c == 'A' ? MagmaAllVec : c == 'S' ? MagmaSomeVec : c == 'O' ? MagmaOverwriteVec : c == 'N' ? MagmaNoVec : (magma_vec_t)0;
c = std::toupper(jobvt);
magma_vec_t magma_jobvt = c == 'A' ? MagmaAllVec : c == 'S' ? MagmaSomeVec : c == 'O' ? MagmaOverwriteVec : c == 'N' ? MagmaNoVec : (magma_vec_t)0;
magma_sgesvd(magma_jobu,magma_jobvt,m, n, 0, ld, 0, 0, ldu
, 0, ldvt, w.main()
, lwork_query, &that
);
w.prepare_main();
nt2::gesvd(a0,s,u,vt,jobu,jobvt,w);
return that;
}
BOOST_FORCEINLINE result_type operator()(A0& a0, A1& s, A2& u,A3 &vt, A4 jobu, A5 jobvt) const
{
result_type that;
details::workspace<typename A0::value_type> w;
nt2_la_int m = nt2::height(a0);
nt2_la_int n = nt2::width(a0);
nt2_la_int ld = a0.leading_size();
nt2_la_int ldu = u.leading_size() > 1 ? u.leading_size() : 1 ;
nt2_la_int ldvt= vt.leading_size() > 1 ? vt.leading_size() : 1 ;
NT2_F77NAME(sgesvd) (&jobu,&jobvt,&m, &n, 0, &ld, 0, 0, &ldu
, 0, &ldvt, w.main()
, details::query(), &that
);
w.resize_main(5*nt2::max(m, n));
nt2::gesvd(a0,s,u,vt,jobu,jobvt,w);
return that;
}