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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 {
aocommon::VectorMap<ChannelRange> MsHelper::GenerateChannelPartInfo(
const ImagingTableEntry& entry, size_t ms_index) const {
const aocommon::MultiBandData& band_data = ms_bands_[ms_index];
aocommon::VectorMap<ChannelRange> result;
for (const size_t data_desc_id : band_data.DataDescIds()) {
const size_t band_index = band_data.GetBandIndex(data_desc_id);
MSSelection selection(global_selection_);
if (settings_.IsBandSelected(band_index)) {
const ChannelRange range =
SelectMsChannels(band_data, data_desc_id, entry.lowestFrequency,
entry.highestFrequency);
if (!range.Empty()) result.AlwaysEmplace(data_desc_id, range);
}
}
return result;
}
std::vector<aocommon::VectorMap<ChannelRange>> MsHelper::GenerateChannelInfo(
const ImagingTable& imaging_table, size_t ms_index) const {
const std::string ms_name(settings_.filenames[ms_index]);
std::vector<aocommon::VectorMap<ChannelRange>> channels;
std::map<aocommon::PolarizationEnum, size_t> next_index;
for (size_t sq_index = 0; sq_index != imaging_table.SquaredGroupCount();
++sq_index) {
// One facet_group contains all the entries for one output channel and
// one polarization.
// The band information is determined from the first facet in the group of
// the first polarization. After this, all facet entries inside the
// facet_groups are updated.
const ImagingTable::Groups facet_groups =
imaging_table.FacetGroups([sq_index](const ImagingTableEntry& e) {
return e.squaredDeconvolutionIndex == sq_index;
});
const ImagingTableEntry& entry = *facet_groups.front().front();
aocommon::VectorMap<ChannelRange> range =
GenerateChannelPartInfo(entry, ms_index);
if (!range.Empty()) {
const size_t part_index = channels.size();
channels.emplace_back(std::move(range));
for (const ImagingTable::Group& facet_group : facet_groups) {
for (const std::shared_ptr<ImagingTableEntry>& entry : facet_group) {
entry->part_index_per_ms[ms_index] = part_index;
}
}
}
}
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<aocommon::VectorMap<ChannelRange>> channels =
GenerateChannelInfo(imaging_table, ms_index);
casacore::MeasurementSet ms_data_obj(settings_.filenames[ms_index]);
const bool has_frequency_bda = wsclean::HasFrequencyBda(ms_data_obj);
const size_t n_antennas = ms_data_obj.antenna().nrow();
const aocommon::MultiBandData original_bands(ms_data_obj);
const std::vector<aocommon::MultiBandData> bands_per_part =
MakeSelectedBands(original_bands, channels);
auto data = std::make_unique<schaapcommon::reordering::HandleData>(
settings_.filenames[ms_index], settings_.dataColumnName,
settings_.modelColumnName, settings_.modelStorageManager,
settings_.temporaryDirectory, channels, initial_model_required,
settings_.modelUpdateRequired, polarization_types, global_selection_,
bands_per_part, has_frequency_bda, n_antennas, settings_.saveReorder,
ReorderedMsProvider::StoreReorderedInMS);
std::vector<aocommon::OptionalNumber<size_t>> data_desc_ids;
std::tie(data->metadata_indices_, data_desc_ids) =
schaapcommon::reordering::MakeMetaFilesMap(data->channels_);
ReorderedHandle part_ms = ReorderedHandle(std::move(data));
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<aocommon::VectorMap<ChannelRange>> channels =
GenerateChannelInfo(imaging_table, ms_index);
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) {
MsListItem item;
aocommon::VectorMap<ChannelRange> channels =
GenerateChannelPartInfo(entry, ms_index);
if (!channels.Empty()) {
if (settings_.doReorder) {
item.ms_description = MSDataDescription::ForReordered(
reordered_ms_handles_[ms_index], entry.part_index_per_ms[ms_index],
polarization, settings_.UseMpi());
} else {
item.ms_description = MSDataDescription::ForContiguous(
settings_.filenames[ms_index], settings_.dataColumnName,
settings_.modelColumnName, settings_.modelStorageManager,
global_selection_, channels, polarization, settings_.UseMpi());
}
item.ms_index = ms_index;
ms_list.emplace_back(std::move(item));
}
}
return ms_list;
}
} // namespace wsclean
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