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304 lines
10 KiB
C++
304 lines
10 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: Hadrons/Utilities/Contractor.cc
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Copyright (C) 2015-2018
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Hadrons/Global.hpp>
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#include <Hadrons/A2AMatrix.hpp>
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#include <Hadrons/DiskVector.hpp>
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using namespace Grid;
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using namespace QCD;
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using namespace Hadrons;
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#define TIME_MOD(t) (((t) + par.global.nt) % par.global.nt)
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namespace Contractor
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{
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class GlobalPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(GlobalPar,
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unsigned int, nt,
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std::string, diskVectorDir,
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std::string, output);
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};
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class A2AMatrixPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(A2AMatrixPar,
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std::string, file,
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std::string, dataset,
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unsigned int, cacheSize,
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std::string, name);
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};
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class ProductPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(ProductPar,
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std::string, terms,
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std::vector<std::string>, times,
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std::string, translations);
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};
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}
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struct ContractorPar
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{
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Contractor::GlobalPar global;
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std::vector<Contractor::A2AMatrixPar> a2aMatrix;
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std::vector<Contractor::ProductPar> product;
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};
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void makeTimeSeq(std::vector<std::vector<unsigned int>> &timeSeq,
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const std::vector<std::set<unsigned int>> ×,
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std::vector<unsigned int> ¤t,
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const unsigned int depth)
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{
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if (depth > 0)
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{
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for (auto t: times[times.size() - depth])
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{
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current[times.size() - depth] = t;
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makeTimeSeq(timeSeq, times, current, depth - 1);
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}
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}
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else
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{
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timeSeq.push_back(current);
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}
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}
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void makeTimeSeq(std::vector<std::vector<unsigned int>> &timeSeq,
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const std::vector<std::set<unsigned int>> ×)
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{
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std::vector<unsigned int> current(times.size());
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makeTimeSeq(timeSeq, times, current, times.size());
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}
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std::set<unsigned int> parseTimeRange(const std::string str, const unsigned int nt)
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{
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std::regex rex("([0-9]+)|(([0-9]+)\\.\\.([0-9]+))");
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std::smatch sm;
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std::vector<std::string> rstr = strToVec<std::string>(str);
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std::set<unsigned int> tSet;
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for (auto &s: rstr)
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{
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std::regex_match(s, sm, rex);
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if (sm[1].matched)
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{
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unsigned int t;
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t = std::stoi(sm[1].str());
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if (t >= nt)
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{
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HADRONS_ERROR(Range, "time out of range (from expression '" + str + "')");
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}
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tSet.insert(t);
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}
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else if (sm[2].matched)
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{
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unsigned int ta, tb;
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ta = std::stoi(sm[3].str());
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tb = std::stoi(sm[4].str());
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if ((ta >= nt) or (tb >= nt))
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{
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HADRONS_ERROR(Range, "time out of range (from expression '" + str + "')");
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}
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for (unsigned int ti = ta; ti <= tb; ++ti)
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{
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tSet.insert(ti);
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}
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}
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}
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return tSet;
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}
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void printPerf(const double flops, const double fusec, const double bytes, const double busec)
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{
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std::cout << std::setw(10) << flops/fusec/1.0e3 << " GFlop/s "
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<< std::setw(10) << bytes/busec*1.0e6/1024/1024/1024 << " GB/s"
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<< std::endl;
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}
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int main(int argc, char* argv[])
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{
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// parse command line
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std::string parFilename;
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if (argc != 2)
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{
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std::cerr << "usage: " << argv[0] << " <parameter file>";
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std::cerr << std::endl;
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return EXIT_FAILURE;
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}
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parFilename = argv[1];
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// parse parameter file
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ContractorPar par;
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unsigned int nMat, nCont;
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XmlReader reader(parFilename);
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read(reader, "global", par.global);
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read(reader, "a2aMatrix", par.a2aMatrix);
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read(reader, "product", par.product);
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nMat = par.a2aMatrix.size();
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nCont = par.product.size();
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// create diskvectors
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std::map<std::string, EigenDiskVector<ComplexD>> a2aMat;
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unsigned int cacheSize;
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for (auto &p: par.a2aMatrix)
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{
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std::string dirName = par.global.diskVectorDir + "/" + p.name;
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a2aMat.emplace(p.name, EigenDiskVector<ComplexD>(dirName, par.global.nt, p.cacheSize));
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}
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// load data
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for (unsigned int i = 0; i < a2aMat.size(); ++i)
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{
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auto &p = par.a2aMatrix[i];
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double t, size;
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std::cout << "======== Loading '" << p.file << "'" << std::endl;
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A2AMatrixIo<HADRONS_A2AM_IO_TYPE> a2aIo(p.file, p.dataset, par.global.nt);
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a2aIo.load(a2aMat.at(p.name), &t);
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std::cout << "Read " << a2aIo.getSize() << " bytes in " << t << " usec, " << a2aIo.getSize()/t*1.0e6/1024/1024 << " MB/s" << std::endl;
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}
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// contract
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EigenDiskVector<ComplexD>::Matrix buf;
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for (auto &p: par.product)
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{
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std::vector<std::string> term = strToVec<std::string>(p.terms);
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std::vector<std::set<unsigned int>> times;
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std::vector<std::vector<unsigned int>> timeSeq;
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std::set<unsigned int> translations;
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std::vector<ComplexD> corr(par.global.nt);
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std::vector<A2AMatrixTr<ComplexD>> lastTerm(par.global.nt);
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A2AMatrix<ComplexD> prod, buf, tmp;
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double fusec, busec, flops, bytes;
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std::cout << "======== Product tr(";
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for (unsigned int g = 0; g < term.size(); ++g)
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{
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std::cout << term[g] << ((g == term.size() - 1) ? ')' : '*');
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}
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std::cout << std::endl;
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if (term.size() != p.times.size() + 1)
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{
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HADRONS_ERROR(Size, "number of terms (" + std::to_string(term.size())
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+ ") different from number of times ("
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+ std::to_string(p.times.size() + 1) + ")");
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}
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for (auto &s: p.times)
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{
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times.push_back(parseTimeRange(s, par.global.nt));
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}
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translations = parseTimeRange(p.translations, par.global.nt);
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makeTimeSeq(timeSeq, times);
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std::cout << timeSeq.size()*translations.size()*(term.size() - 2) << " A*B, "
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<< timeSeq.size()*translations.size()*par.global.nt << " tr(A*B)"
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<< std::endl;
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std::cout << "-- caching transposed last term" << std::endl;
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for (unsigned int t = 0; t < par.global.nt; ++t)
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{
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buf = a2aMat.at(term.back())[t];
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lastTerm[t] = buf;
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}
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for (auto &t: timeSeq)
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{
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for (unsigned int tLast = 0; tLast < par.global.nt; ++tLast)
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{
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corr[tLast] = 0.;
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}
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for (auto &dt: translations)
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{
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std::cout << "-- position " << t << ", translation " << dt << std::endl;
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if (term.size() > 2)
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{
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std::cout << "* matrix products ";
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}
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flops = 0.;
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bytes = 0.;
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fusec = 0.;
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busec = 0.;
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prod = a2aMat.at(term[0])[TIME_MOD(t[0] + dt)];
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for (unsigned int i = 1; i < term.size() - 1; ++i)
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{
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const A2AMatrix<ComplexD> &ref = a2aMat.at(term[i])[TIME_MOD(t[i] + dt)];
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fusec -= usecond();
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busec -= usecond();
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A2AContraction::mul(tmp, prod, ref);
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fusec += usecond();
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flops += A2AContraction::mulFlops(tmp, prod, ref);
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prod = tmp;
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busec += usecond();
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bytes += 3.*tmp.rows()*tmp.cols()*sizeof(ComplexD);
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}
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if (term.size() > 2)
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{
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printPerf(flops, fusec, bytes, busec);
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}
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std::cout << "* traces ";
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flops = 0.;
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bytes = 0.;
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fusec = 0.;
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busec = 0.;
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for (unsigned int tLast = 0; tLast < par.global.nt; ++tLast)
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{
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fusec -= usecond();
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busec -= usecond();
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A2AContraction::accTrMul(corr[tLast], prod, lastTerm[tLast]);
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fusec += usecond();
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busec += usecond();
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flops += A2AContraction::accTrMulFlops(corr[tLast], prod, lastTerm[tLast]);
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bytes += 2.*prod.rows()*prod.cols()*sizeof(ComplexD);
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}
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printPerf(flops, fusec, bytes, busec);
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}
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for (unsigned int tLast = 0; tLast < par.global.nt; ++tLast)
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{
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std::cout << tLast << " " << corr[tLast] << std::endl;
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}
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}
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}
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return EXIT_SUCCESS;
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}
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