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Fri, May 17, 20:53

loop.hh
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/**
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2017 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Tamaas is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __LOOP_HH__
#define __LOOP_HH__
/* -------------------------------------------------------------------------- */
#include "tamaas.hh"
#include "loops/loop_omp.hh"
#include <type_traits>
__BEGIN_TAMAAS__
class Loop {
public:
/// Backends enumeration
enum backend { omp, cuda };
private:
/// Constructor
Loop() = default;
public:
/// Initialize singleton instance
static void init(backend back);
/// Get singleton instance
static Loop & get();
public:
/// Make a loop object with one grid
template <typename Functor, typename... Grids>
void loop(Functor&& func, Grids&&... grids) {
switch(_backend) {
case omp:
detail::exec_loop_omp(func, grids...);
break;
default:
TAMAAS_EXCEPTION("Backend not implemented");
}
}
/// Reduce over any number of grids
template <operation op, typename Functor, typename... Grids>
auto reduce(Functor&& func, Grids&&... grids)
-> decltype(func(grids(0)...)) {
switch(_backend) {
case omp:
return detail::reduce_loop_omp<op>(func, grids...);
break;
default:
TAMAAS_EXCEPTION("Backend not implemented");
}
}
private:
/// Singleton instance
static Loop * singleton;
/// Backend type
backend _backend;
};
__END_TAMAAS__
#endif // __LOOP_HH__

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