void ImagerAction::Perform(ArtifactSet &artifacts, ProgressListener &progress)
{
boost::mutex::scoped_lock lock(_imagerMutex);
UVImager *imager = artifacts.Imager();
if(imager == 0)
throw BadUsageException("No imager available to create image.");
TimeFrequencyData &data = artifacts.ContaminatedData();
TimeFrequencyMetaDataCPtr metaData = artifacts.MetaData();
if(data.PolarisationCount() > 1)
{
TimeFrequencyData *tmp = data.CreateTFData(StokesIPolarisation);
data = *tmp;
delete tmp;
}
bool btPlaneImager = true;
if(btPlaneImager)
{
typedef double ImagerNumeric;
BaselineTimePlaneImager<ImagerNumeric> btImager;
BandInfo band = metaData->Band();
Image2DCPtr
inputReal = data.GetRealPart(),
inputImag = data.GetImaginaryPart();
Mask2DCPtr mask = data.GetSingleMask();
size_t width = inputReal->Width();
for(size_t t=0;t!=width;++t)
{
UVW uvw = metaData->UVW()[t];
size_t channelCount = inputReal->Height();
std::vector<std::complex<ImagerNumeric> > data(channelCount);
for(size_t ch=0;ch!=channelCount;++ch) {
if(mask->Value(t, ch))
data[ch] = std::complex<ImagerNumeric>(0.0, 0.0);
else
data[ch] = std::complex<ImagerNumeric>(inputReal->Value(t, ch), inputImag->Value(t, ch));
}
btImager.Image(uvw.u, uvw.v, uvw.w, band.channels[0].frequencyHz, band.channels[1].frequencyHz-band.channels[0].frequencyHz, channelCount, &(data[0]), imager->FTReal());
}
} else {
progress.OnStartTask(*this, 0, 1, "Imaging baseline");
for(size_t y=0;y<data.ImageHeight();++y)
{
imager->Image(data, metaData, y);
progress.OnProgress(*this, y, data.ImageHeight());
}
progress.OnEndTask(*this);
}
}
void ActionBlock::Perform(ArtifactSet &artifacts, ProgressListener &listener)
{
size_t nr = 0;
unsigned totalWeight = Weight();
for(const_iterator i=begin();i!=end();++i)
{
Action *action = *i;
unsigned weight = action->Weight();
listener.OnStartTask(*this, nr, totalWeight, action->Description(), weight);
action->Perform(artifacts, listener);
listener.OnEndTask(*this);
nr += weight;
}
}
void ForEachBaselineAction::SetProgress(ProgressListener &progress, int no, int count, std::string taskName, int threadId)
{
boost::mutex::scoped_lock lock(_mutex);
_progressTaskNo[threadId] = no;
_progressTaskCount[threadId] = count;
size_t totalCount = 0, totalNo = 0;
for(size_t i=0;i<_threadCount;++i)
{
totalCount += _progressTaskCount[threadId];
totalNo += _progressTaskNo[threadId];
}
progress.OnEndTask(*this);
std::stringstream str;
str << "T" << threadId << ": " << taskName;
progress.OnStartTask(*this, totalNo, totalCount, str.str());
}
void ForEachBaselineAction::Perform(ArtifactSet &artifacts, ProgressListener &progress)
{
if(!artifacts.HasImageSet())
{
progress.OnStartTask(*this, 0, 1, "For each baseline (no image set)");
progress.OnEndTask(*this);
AOLogger::Warn <<
"I executed a ForEachBaselineAction without an active imageset: something is\n"
"likely wrong. Check your strategy and the input files.\n";
} else if(_selection == Current)
{
ActionBlock::Perform(artifacts, progress);
} else
{
ImageSet *imageSet = artifacts.ImageSet();
MSImageSet *msImageSet = dynamic_cast<MSImageSet*>(imageSet);
if(msImageSet != 0)
{
// Check memory usage
ImageSetIndex *tempIndex = msImageSet->StartIndex();
size_t timeStepCount = msImageSet->ObservationTimesVector(*tempIndex).size();
delete tempIndex;
size_t channelCount = msImageSet->GetBandInfo(0).channels.size();
size_t estMemorySizePerThread = 8/*bp complex*/ * 4 /*polarizations*/ * timeStepCount * channelCount * 3 /* approx copies of the data that will be made in memory*/;
AOLogger::Debug << "Estimate of memory each thread will use: " << estMemorySizePerThread/(1024*1024) << " MB.\n";
size_t compThreadCount = _threadCount;
if(compThreadCount > 0) --compThreadCount;
if(estMemorySizePerThread * compThreadCount > 12ul*1024ul*1024ul*1024ul)
{
size_t maxThreads = (12ul * 1024ul * 1024ul * 1024ul) / estMemorySizePerThread;
if(maxThreads < 1) maxThreads = 1;
AOLogger::Warn <<
"WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n"
"This measurement set is TOO LARGE to be processed with " << _threadCount << " threads!\n" <<
_threadCount << " threads would require " << ((estMemorySizePerThread*compThreadCount)/(1024*1024)) << " MB of memory approximately.\n"
"Number of threads that will actually be used: " << maxThreads << "\n"
"This might hurt performance a lot!\n\n";
_threadCount = maxThreads;
}
}
if(!_antennaeToSkip.empty())
{
AOLogger::Debug << "The following antenna's will be skipped: ";
for(std::set<size_t>::const_iterator i=_antennaeToSkip.begin();i!=_antennaeToSkip.end(); ++i)
AOLogger::Debug << (*i) << ' ';
AOLogger::Debug <<'\n';
}
if(!_antennaeToInclude.empty())
{
AOLogger::Debug << "Only the following antenna's will be included: ";
for(std::set<size_t>::const_iterator i=_antennaeToInclude.begin();i!=_antennaeToInclude.end(); ++i)
AOLogger::Debug << (*i) << ' ';
AOLogger::Debug <<'\n';
}
if(artifacts.MetaData() != 0)
{
_hasInitAntennae = true;
if(artifacts.MetaData()->HasAntenna1())
_initAntenna1 = artifacts.MetaData()->Antenna1();
else
_hasInitAntennae = false;
if(artifacts.MetaData()->HasAntenna2())
_initAntenna2 = artifacts.MetaData()->Antenna2();
else
_hasInitAntennae = false;
}
_artifacts = &artifacts;
_initPartIndex = 0;
_finishedBaselines = false;
_baselineCount = 0;
_baselineProgress = 0;
_nextIndex = 0;
// Count the baselines that are to be processed
ImageSetIndex *iteratorIndex = imageSet->StartIndex();
while(iteratorIndex->IsValid())
{
if(IsBaselineSelected(*iteratorIndex))
++_baselineCount;
iteratorIndex->Next();
}
delete iteratorIndex;
AOLogger::Debug << "Will process " << _baselineCount << " baselines.\n";
// Initialize thread data and threads
_loopIndex = imageSet->StartIndex();
_progressTaskNo = new int[_threadCount];
_progressTaskCount = new int[_threadCount];
progress.OnStartTask(*this, 0, 1, "Initializing");
boost::thread_group threadGroup;
ReaderFunction reader(*this);
threadGroup.create_thread(reader);
size_t mathThreads = mathThreadCount();
for(unsigned i=0;i<mathThreads;++i)
{
PerformFunction function(*this, progress, i);
threadGroup.create_thread(function);
}
threadGroup.join_all();
progress.OnEndTask(*this);
if(_resultSet != 0)
{
artifacts = *_resultSet;
delete _resultSet;
}
delete[] _progressTaskCount;
delete[] _progressTaskNo;
delete _loopIndex;
if(_exceptionOccured)
throw std::runtime_error("An exception occured in one of the sub tasks of the (multi-threaded) \"For-each baseline\"-action: the RFI strategy will not continue.");
}
}
void ForEachMSAction::Perform(ArtifactSet &artifacts, ProgressListener &progress)
{
unsigned taskIndex = 0;
FinishAll();
for(std::vector<std::string>::const_iterator i=_filenames.begin();i!=_filenames.end();++i)
{
std::string filename = *i;
progress.OnStartTask(*this, taskIndex, _filenames.size(), std::string("Processing measurement set ") + filename);
bool skip = false;
if(_skipIfAlreadyProcessed)
{
MeasurementSet set(filename);
if(set.HasRFIConsoleHistory())
{
skip = true;
AOLogger::Info << "Skipping " << filename << ",\n"
"because the set contains AOFlagger history and -skip-flagged was given.\n";
}
}
if(!skip)
{
std::auto_ptr<ImageSet> imageSet(ImageSet::Create(filename, _baselineIOMode, _readUVW));
bool isMS = dynamic_cast<MSImageSet*>(&*imageSet) != 0;
if(isMS)
{
MSImageSet *msImageSet = static_cast<MSImageSet*>(&*imageSet);
msImageSet->SetDataColumnName(_dataColumnName);
msImageSet->SetSubtractModel(_subtractModel);
}
imageSet->Initialize();
if(_loadOptimizedStrategy)
{
rfiStrategy::DefaultStrategy::TelescopeId telescopeId;
unsigned flags;
double frequency, timeResolution, frequencyResolution;
rfiStrategy::DefaultStrategy::DetermineSettings(*imageSet, telescopeId, flags, frequency, timeResolution, frequencyResolution);
RemoveAll();
rfiStrategy::DefaultStrategy::LoadFullStrategy(
*this,
telescopeId,
flags,
frequency,
timeResolution,
frequencyResolution
);
if(_threadCount != 0)
rfiStrategy::Strategy::SetThreadCount(*this, _threadCount);
}
std::auto_ptr<ImageSetIndex> index(imageSet->StartIndex());
artifacts.SetImageSet(&*imageSet);
artifacts.SetImageSetIndex(&*index);
InitializeAll();
ActionBlock::Perform(artifacts, progress);
FinishAll();
artifacts.SetNoImageSet();
index.reset();
imageSet.reset();
if(isMS)
writeHistory(*i);
}
progress.OnEndTask(*this);
++taskIndex;
}
InitializeAll();
}
void ForEachBaselineAction::Perform(ArtifactSet &artifacts, ProgressListener &progress)
{
if(!artifacts.HasImageSet())
{
progress.OnStartTask(*this, 0, 1, "For each baseline (no image set)");
progress.OnEndTask(*this);
Logger::Warn <<
"I executed a ForEachBaselineAction without an active imageset: something is\n"
"likely wrong. Check your strategy and the input files.\n";
} else if(_selection == Current)
{
ActionBlock::Perform(artifacts, progress);
} else
{
ImageSet& imageSet = artifacts.ImageSet();
MSImageSet* msImageSet = dynamic_cast<MSImageSet*>(&imageSet);
if(msImageSet != 0)
{
// Check memory usage
std::unique_ptr<ImageSetIndex> tempIndex = msImageSet->StartIndex();
size_t timeStepCount = msImageSet->ObservationTimesVector(*tempIndex).size();
tempIndex.reset();
size_t channelCount = msImageSet->GetBandInfo(0).channels.size();
double estMemorySizePerThread =
8.0/*bp complex*/ * 4.0 /*polarizations*/ *
double(timeStepCount) * double(channelCount) *
3.0 /* approx copies of the data that will be made in memory*/;
Logger::Debug << "Estimate of memory each thread will use: " << memToStr(estMemorySizePerThread) << ".\n";
size_t compThreadCount = _threadCount;
if(compThreadCount > 0) --compThreadCount;
int64_t memSize = System::TotalMemory();
Logger::Debug << "Detected " << memToStr(memSize) << " of system memory.\n";
if(estMemorySizePerThread * double(compThreadCount) > memSize)
{
size_t maxThreads = size_t(memSize / estMemorySizePerThread);
if(maxThreads < 1) maxThreads = 1;
Logger::Warn <<
"This measurement set is TOO LARGE to be processed with " << _threadCount << " threads!\n" <<
_threadCount << " threads would require " << memToStr(estMemorySizePerThread*compThreadCount) << " of memory approximately.\n"
"Number of threads that will actually be used: " << maxThreads << "\n"
"This might hurt performance a lot!\n\n";
_threadCount = maxThreads;
}
}
if(dynamic_cast<FilterBankSet*>(&imageSet) != nullptr && _threadCount != 1)
{
Logger::Info << "This is a Filterbank set -- disabling multi-threading\n";
_threadCount = 1;
}
if(!_antennaeToSkip.empty())
{
Logger::Debug << "The following antennas will be skipped: ";
for(std::set<size_t>::const_iterator i=_antennaeToSkip.begin();i!=_antennaeToSkip.end(); ++i)
Logger::Debug << (*i) << ' ';
Logger::Debug <<'\n';
}
if(!_antennaeToInclude.empty())
{
Logger::Debug << "Only the following antennas will be included: ";
for(std::set<size_t>::const_iterator i=_antennaeToInclude.begin();i!=_antennaeToInclude.end(); ++i)
Logger::Debug << (*i) << ' ';
Logger::Debug <<'\n';
}
if(artifacts.MetaData() != 0)
{
_hasInitAntennae = true;
if(artifacts.MetaData()->HasAntenna1())
_initAntenna1 = artifacts.MetaData()->Antenna1();
else
_hasInitAntennae = false;
if(artifacts.MetaData()->HasAntenna2())
_initAntenna2 = artifacts.MetaData()->Antenna2();
else
_hasInitAntennae = false;
}
_artifacts = &artifacts;
_initPartIndex = 0;
_finishedBaselines = false;
_baselineCount = 0;
_baselineProgress = 0;
_nextIndex = 0;
// Count the baselines that are to be processed
std::unique_ptr<ImageSetIndex> iteratorIndex = imageSet.StartIndex();
while(iteratorIndex->IsValid())
{
if(IsBaselineSelected(*iteratorIndex))
++_baselineCount;
iteratorIndex->Next();
}
iteratorIndex.reset();
Logger::Debug << "Will process " << _baselineCount << " baselines.\n";
// Initialize thread data and threads
_loopIndex = imageSet.StartIndex();
_progressTaskNo = new int[_threadCount];
_progressTaskCount = new int[_threadCount];
progress.OnStartTask(*this, 0, 1, "Initializing");
std::vector<std::thread> threadGroup;
ReaderFunction reader(*this);
threadGroup.emplace_back(reader);
size_t mathThreads = mathThreadCount();
for(unsigned i=0;i<mathThreads;++i)
{
PerformFunction function(*this, progress, i);
threadGroup.emplace_back(function);
}
for(std::thread& t : threadGroup)
t.join();
progress.OnEndTask(*this);
if(_resultSet != 0)
{
artifacts = *_resultSet;
delete _resultSet;
}
delete[] _progressTaskCount;
delete[] _progressTaskNo;
_loopIndex.reset();
if(_exceptionOccured)
throw std::runtime_error("An exception occured in one of the sub tasks of the (multi-threaded) \"For-each baseline\"-action: the RFI strategy will not continue.");
}
}
void SpatialCompositionAction::Perform(ArtifactSet &artifacts, ProgressListener &progress)
{
size_t imageCount = artifacts.ContaminatedData().ImageCount();
std::vector<Image2DPtr> images(imageCount);
for(size_t p=0;p<imageCount;++p)
images[p] = Image2D::CreateZeroImagePtr(artifacts.ContaminatedData().ImageWidth(), artifacts.ContaminatedData().ImageHeight());
std::string filename = artifacts.ImageSet()->File();
SpatialMSImageSet set(filename);
ImageSetIndex *index = set.StartIndex();
size_t progressStep = 0, totalProgress = artifacts.ContaminatedData().ImageWidth() * artifacts.ContaminatedData().ImageHeight()/256;
while(index->IsValid())
{
TimeFrequencyData *data = set.LoadData(*index);
SpatialMatrixMetaData metaData(set.SpatialMetaData(*index));
for(size_t p=0;p!=imageCount;++p)
{
switch(_operation)
{
case SumCrossCorrelationsOperation:
images[p]->SetValue(metaData.TimeIndex(), metaData.ChannelIndex(), sumCrossCorrelations(data->GetImage(p)));
break;
case SumAutoCorrelationsOperation:
images[p]->SetValue(metaData.TimeIndex(), metaData.ChannelIndex(), sumAutoCorrelations(data->GetImage(p)));
break;
case EigenvalueDecompositionOperation: {
num_t value = eigenvalue(data->GetImage(p), data->GetImage(p+1));
images[p]->SetValue(metaData.TimeIndex(), metaData.ChannelIndex(), value);
images[p+1]->SetValue(metaData.TimeIndex(), metaData.ChannelIndex(), 0.0);
++p;
} break;
case EigenvalueRemovalOperation: {
std::pair<num_t, num_t> value = removeEigenvalue(data->GetImage(p), data->GetImage(p+1));
images[p]->SetValue(metaData.TimeIndex(), metaData.ChannelIndex(), value.first);
images[p+1]->SetValue(metaData.TimeIndex(), metaData.ChannelIndex(), value.second);
++p;
} break;
}
}
delete data;
index->Next();
++progressStep;
progress.OnProgress(*this, progressStep/256, totalProgress);
}
delete index;
TimeFrequencyData newRevisedData = artifacts.RevisedData();
for(size_t p=0;p<imageCount;++p)
newRevisedData.SetImage(p, images[p]);
newRevisedData.SetMask(artifacts.RevisedData());
TimeFrequencyData *contaminatedData =
TimeFrequencyData::CreateTFDataFromDiff(artifacts.ContaminatedData(), newRevisedData);
contaminatedData->SetMask(artifacts.ContaminatedData());
artifacts.SetRevisedData(newRevisedData);
artifacts.SetContaminatedData(*contaminatedData);
delete contaminatedData;
}
