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/*
* System.cpp
*
* Created on: 23 Oct 2015
* Author: hieu
*/
#include <string>
#include <iostream>
#include <boost/foreach.hpp>
#include <boost/thread.hpp>
#include <boost/thread/mutex.hpp>
#include "System.h"
#include "FF/FeatureFunction.h"
#include "TranslationModel/UnknownWordPenalty.h"
#include "legacy/Util2.h"
#include "util/exception.hh"
using namespace std;
namespace Moses2
{
System::System(const Parameter ¶msArg) :
params(paramsArg), featureFunctions(*this)
{
options.init(paramsArg);
IsPb();
bestCollector.reset(new OutputCollector());
params.SetParameter(cpuAffinityOffset, "cpu-affinity-offset", -1);
params.SetParameter(cpuAffinityOffsetIncr, "cpu-affinity-increment", 1);
const PARAM_VEC *section;
// output collectors
if (options.nbest.nbest_size) {
nbestCollector.reset(new OutputCollector(options.nbest.output_file_path));
}
if (!options.output.detailed_transrep_filepath.empty()) {
detailedTranslationCollector.reset(new OutputCollector(options.output.detailed_transrep_filepath));
}
featureFunctions.Create();
LoadWeights();
if (params.GetParam("show-weights")) {
cerr << "Showing weights then exit" << endl;
featureFunctions.ShowWeights(weights);
//return;
}
cerr << "START featureFunctions.Load()" << endl;
featureFunctions.Load();
cerr << "START LoadMappings()" << endl;
LoadMappings();
cerr << "END LoadMappings()" << endl;
LoadDecodeGraphBackoff();
cerr << "END LoadDecodeGraphBackoff()" << endl;
UTIL_THROW_IF2(options.input.xml_policy == XmlConstraint, "XmlConstraint not supported");
// max spans for scfg decoding
if (!isPb) {
section = params.GetParam("max-chart-span");
if (section && section->size()) {
maxChartSpans = Scan<size_t>(*section);
maxChartSpans.resize(mappings.size(), DEFAULT_MAX_CHART_SPAN);
/*
cerr << "maxChartSpans=" << maxChartSpans.size();
for (size_t i = 0; i < maxChartSpans.size(); ++i) {
cerr << " " << mappings[i]->GetName() << "=" << maxChartSpans[i];
}
cerr << endl;
*/
}
}
}
System::~System()
{
}
void System::LoadWeights()
{
weights.Init(featureFunctions);
//cerr << "Weights:" << endl;
typedef std::map<std::string, std::vector<float> > WeightMap;
const WeightMap &allWeights = params.GetAllWeights();
BOOST_FOREACH(const WeightMap::value_type &valPair, allWeights) {
const string &ffName = valPair.first;
const std::vector<float> &ffWeights = valPair.second;
/*
cerr << ffName << "=";
for (size_t i = 0; i < ffWeights.size(); ++i) {
cerr << ffWeights[i] << " ";
}
cerr << endl;
*/
weights.SetWeights(featureFunctions, ffName, ffWeights);
}
}
void System::LoadMappings()
{
const PARAM_VEC *vec = params.GetParam("mapping");
UTIL_THROW_IF2(vec == NULL, "Must have [mapping] section");
BOOST_FOREACH(const std::string &line, *vec){
vector<string> toks = Tokenize(line);
assert( (toks.size() == 2 && toks[0] == "T") || (toks.size() == 3 && toks[1] == "T") );
size_t ptInd;
if (toks.size() == 2) {
ptInd = Scan<size_t>(toks[1]);
}
else {
ptInd = Scan<size_t>(toks[2]);
}
const PhraseTable *pt = featureFunctions.GetPhraseTableExcludeUnknownWordPenalty(ptInd);
mappings.push_back(pt);
}
// unk pt
const UnknownWordPenalty *unkWP = featureFunctions.GetUnknownWordPenalty();
if (unkWP) {
mappings.push_back(unkWP);
}
}
void System::LoadDecodeGraphBackoff()
{
const PARAM_VEC *vec = params.GetParam("decoding-graph-backoff");
for (size_t i = 0; i < mappings.size(); ++i) {
PhraseTable *pt = const_cast<PhraseTable*>(mappings[i]);
if (vec && vec->size() < i) {
pt->decodeGraphBackoff = Scan<int>((*vec)[i]);
}
else if (pt == featureFunctions.GetUnknownWordPenalty()) {
pt->decodeGraphBackoff = 1;
}
else {
pt->decodeGraphBackoff = 0;
}
}
}
MemPool &System::GetSystemPool() const
{
return GetThreadSpecificObj(m_systemPool);
}
MemPool &System::GetManagerPool() const
{
return GetThreadSpecificObj(m_managerPool);
}
FactorCollection &System::GetVocab() const
{
return m_vocab;
}
Recycler<HypothesisBase*> &System::GetHypoRecycler() const
{
return GetThreadSpecificObj(m_hypoRecycler);
}
Batch &System::GetBatch(MemPool &pool) const
{
Batch *obj;
obj = m_batch.get();
if (obj == NULL) {
obj = new Batch(pool);
m_batch.reset(obj);
}
assert(obj);
return *obj;
}
void System::IsPb()
{
switch (options.search.algo) {
case Normal:
case NormalBatch:
case CubePruning:
case CubePruningPerMiniStack:
case CubePruningPerBitmap:
case CubePruningCardinalStack:
case CubePruningBitmapStack:
case CubePruningMiniStack:
isPb = true;
break;
case CYKPlus:
isPb = false;
break;
default:
abort();
break;
}
}
}
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