tutorial/NetSearchExhaustive.cc

This example shows how to instantiate an ExhaustiveSearch task to search for the best merit among all possible nets.

This example shows how to instantiate an ExhaustiveSearch task to search for the best merit among all possible nets.

// This file is part of LatNet Builder.
//
// Copyright (C) 2012-2021  The LatNet Builder author's, supervised by Pierre L'Ecuyer, Universite de Montreal.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#include <iostream>
#include <memory>
 
#include "netbuilder/Types.h"
#include "netbuilder/DigitalNet.h"
#include "netbuilder/FigureOfMerit/CoordUniformFigureOfMerit.h"
#include "netbuilder/Task/ExhaustiveSearch.h"
#include "latticetester/ProductWeights.h"
 
#include "Path.h"
 
#include "latbuilder/Kernel/PAlphaTilde.h"
 
using namespace NetBuilder;
using namespace NetBuilder::FigureOfMerit;
using namespace NetBuilder::Task;
 
int main(int argc, char** argv)
{
        SET_PATH_TO_LATNETBUILDER_FOR_EXAMPLES();
        unsigned int alpha = 2;
        auto kernel = LatBuilder::Kernel::PAlphaTilde(alpha);
        auto weights = std::make_unique<LatticeTester::ProductWeights>(.7);
        auto figure = std::make_unique<CoordUniformFigureOfMerit<LatBuilder::Kernel::PAlphaTilde, EmbeddingType::UNILEVEL>>(std::move(weights), kernel);
 
        typedef typename NetConstructionTraits<NetConstruction::SOBOL>::SizeParameter SizeParameter;
        SizeParameter size(10);
        Dimension s = 5;

        auto task = std::make_unique<ExhaustiveSearch<NetConstruction::SOBOL, EmbeddingType::UNILEVEL>>(s, size, std::move(figure));
        std::cout << task->format();

        task->execute();
        std::cout << "Best net:" << std::endl;
        std::cout << task->bestNet().format() << std::endl;
        std::cout << "Merit value: " << task->bestMeritValue() << std::endl;
}