LBalWriter.cpp

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//
// Class LBalWriter
//   This class writes a SDDS file with MPI load balancing information.
//
// Copyright (c) 2019, Matthias Frey, Paul Scherrer Institut, Villigen PSI, Switzerland
//                     Christof Metzger-Kraus, Open Sourcerer
// All rights reserved
//
// This file is part of OPAL.
//
// OPAL is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// You should have received a copy of the GNU General Public License
// along with OPAL. If not, see <https://www.gnu.org/licenses/>.
//
#include "LBalWriter.h"
 
#include "AbstractObjects/OpalData.h"
#include "PartBunch/PartBunch.h"
#include "Physics/Units.h"
#include "Utilities/Timer.h"
#include "Utilities/Util.h"
 
LBalWriter::LBalWriter(const std::string& fname, bool restart) : SDDSWriter(fname, restart) {}
 
void LBalWriter::fillHeader() {
    if (this->hasColumns()) {
        return;
    }
 
    columns_m.addColumn("t", "double", "ns", "Time");
 
    for (int p = 0; p < ippl::Comm->size(); ++p) {
        std::stringstream tmp1;
        tmp1 << "\"processor-" << p << "\"";
 
        std::stringstream tmp2;
        tmp2 << "Number of particles of processor " << p;
 
        columns_m.addColumn(tmp1.str(), "long", "1", tmp2.str());
    }
 
    if (mode_m == std::ios::app) return;
 
    OPALTimer::Timer simtimer;
 
    std::string dateStr(simtimer.date());
    std::string timeStr(simtimer.time());
 
    std::stringstream ss;
    ss << "Processor statistics '" << OpalData::getInstance()->getInputFn() << "' " << dateStr << ""
       << timeStr;
 
    this->addDescription(ss.str(), "lbal parameters");
 
    this->addDefaultParameters();
 
    this->addInfo("ascii", 1);
}
 
void LBalWriter::write(const PartBunch_t& beam) {
    if (ippl::Comm->rank() != 0) return;
 
    this->fillHeader();
 
    this->open();
 
    this->writeHeader();
 
    columns_m.addColumnValue("t", beam.getT() * Units::s2ns);  // 1
 
    size_t nProcs = ippl::Comm->size();
 
    for (size_t p = 0; p < nProcs; ++p) {
        std::stringstream ss;
        ss << "\"processor-" << p << "\"";
        size_t a = 10;  // beam->getLoadBalance(p);
        columns_m.addColumnValue(ss.str(), a);
    }
 
    this->writeRow();
 
    this->close();
}