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#include "mshelper.h"
#include <mutex>
#include <aocommon/counting_semaphore.h>
#include <aocommon/dynamicfor.h>
#include <aocommon/logger.h>
using aocommon::Logger;
using schaapcommon::reordering::ChannelRange;
using schaapcommon::reordering::MSSelection;
namespace wsclean {
const std::vector<ChannelRange> MsHelper::GenerateChannelInfo(
const ImagingTable& imaging_table, size_t ms_index) const {
const aocommon::MultiBandData& band_data = ms_bands_[ms_index];
std::vector<ChannelRange> channels;
// The partIndex needs to increase per data desc ids and channel ranges
std::map<aocommon::PolarizationEnum, size_t> next_index;
for (size_t sq_index = 0; sq_index != imaging_table.SquaredGroupCount();
++sq_index) {
const ImagingTable::Groups facet_groups =
imaging_table.FacetGroups([sq_index](const ImagingTableEntry& e) {
return e.squaredDeconvolutionIndex == sq_index;
});
for (const ImagingTable::Group& facet_group : facet_groups) {
// The band information is determined from the first facet in the group.
// After this, all facet entries inside the group are updated.
const ImagingTableEntry& entry = *facet_group.front();
for (size_t d = 0; d != band_data.DataDescCount(); ++d) {
MSSelection selection{global_selection_};
const size_t band_index = band_data.GetBandIndex(d);
if (settings_.IsBandSelected(band_index) &&
SelectMsChannels(selection, band_data, d, entry)) {
if (entry.polarization == *settings_.polarizations.begin()) {
ChannelRange r;
r.data_desc_id = d;
r.start = selection.ChannelRangeStart();
r.end = selection.ChannelRangeEnd();
channels.push_back(r);
}
for (const std::shared_ptr<ImagingTableEntry>& facet_entry :
facet_group) {
facet_entry->msData[ms_index].bands[d].partIndex =
next_index[entry.polarization];
}
++next_index[entry.polarization];
}
}
}
}
return channels;
}
void MsHelper::ReuseReorderedFiles(const ImagingTable& imaging_table) {
assert(reordered_ms_handles_.empty());
reordered_ms_handles_.resize(settings_.filenames.size());
bool initial_model_required =
settings_.subtractModel || settings_.continuedRun;
Logger::Info << "Reading pre-generated reordered data...\n";
std::set<aocommon::PolarizationEnum> polarization_types;
for (aocommon::PolarizationEnum p : settings_.polarizations)
polarization_types.insert(settings_.GetProviderPolarization(p));
for (size_t ms_index = 0; ms_index < settings_.filenames.size(); ++ms_index) {
const std::vector<ChannelRange> channels =
GenerateChannelInfo(imaging_table, ms_index);
casacore::MeasurementSet ms_data_obj(settings_.filenames[ms_index]);
const size_t n_antennas = ms_data_obj.antenna().nrow();
const aocommon::MultiBandData bands(ms_data_obj);
ReorderedMsProvider::ReorderedHandle part_ms =
ReorderedMsProvider::ReorderedHandle(
settings_.filenames[ms_index], settings_.dataColumnName,
settings_.modelColumnName, settings_.modelStorageManager,
settings_.temporaryDirectory, channels, initial_model_required,
settings_.modelUpdateRequired, polarization_types,
global_selection_, bands, n_antennas, settings_.saveReorder,
ReorderedMsProvider::StoreReorderedInMS);
reordered_ms_handles_[ms_index] = std::move(part_ms);
}
}
void MsHelper::PerformReordering(const ImagingTable& imaging_table,
bool is_predict_mode) {
std::mutex mutex;
assert(reordered_ms_handles_.empty());
reordered_ms_handles_.resize(settings_.filenames.size());
bool use_model = settings_.deconvolutionMGain != 1.0 || is_predict_mode ||
settings_.subtractModel || settings_.continuedRun;
bool initial_model_required =
settings_.subtractModel || settings_.continuedRun;
if (settings_.parallelReordering != 1) Logger::Info << "Reordering...\n";
aocommon::CountingSemaphore semaphore(settings_.parallelReordering);
aocommon::DynamicFor<size_t> loop;
loop.Run(0, settings_.filenames.size(), [&](size_t ms_index) {
aocommon::ScopedCountingSemaphoreLock semaphore_lock(semaphore);
std::vector<ChannelRange> channels =
GenerateChannelInfo(imaging_table, ms_index);
ReorderedMsProvider::ReorderedHandle part_ms =
ReorderMS(settings_.filenames[ms_index], channels, global_selection_,
settings_.dataColumnName, settings_.modelColumnName,
settings_.modelStorageManager, use_model,
initial_model_required, settings_);
std::lock_guard<std::mutex> lock(mutex);
reordered_ms_handles_[ms_index] = std::move(part_ms);
if (settings_.parallelReordering != 1)
Logger::Info << "Finished reordering " << settings_.filenames[ms_index]
<< " [" << ms_index << "]\n";
});
}
std::vector<MsListItem> MsHelper::InitializeMsList(
const ImagingTableEntry& entry) const {
const aocommon::PolarizationEnum polarization =
settings_.GetProviderPolarization(entry.polarization);
std::vector<MsListItem> ms_list;
for (size_t ms_index = 0; ms_index != settings_.filenames.size();
++ms_index) {
const aocommon::MultiBandData& band_data = ms_bands_[ms_index];
for (size_t data_description_id = 0;
data_description_id != band_data.DataDescCount();
++data_description_id) {
MSSelection selection{global_selection_};
const size_t band_index = band_data.GetBandIndex(data_description_id);
if (settings_.IsBandSelected(band_index) &&
SelectMsChannels(selection, band_data, data_description_id, entry)) {
MsListItem item;
if (settings_.doReorder)
item.ms_description = MSDataDescription::ForReordered(
reordered_ms_handles_[ms_index], selection,
entry.msData[ms_index].bands[data_description_id].partIndex,
polarization, data_description_id, settings_.UseMpi());
else
item.ms_description = MSDataDescription::ForContiguous(
settings_.filenames[ms_index], settings_.dataColumnName,
settings_.modelColumnName, settings_.modelStorageManager,
selection, polarization, data_description_id, settings_.UseMpi());
item.ms_index = ms_index;
ms_list.emplace_back(std::move(item));
}
}
}
return ms_list;
}
} // namespace wsclean
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