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feat: make storage of input values in DHT optional

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This commit is contained in:
Max Lübke 2023-09-08 22:43:52 +02:00
parent 1b553205cd
commit ba65f72984
3 changed files with 59 additions and 18 deletions
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14
include/poet/DHT_Wrapper.hpp
View File

@ -1,4 +1,4 @@
// Time-stamp: "Last modified 2023-08-15 14:57:51 mluebke"
// Time-stamp: "Last modified 2023-09-08 14:43:02 mluebke"
/*
** Copyright (C) 2018-2021 Alexander Lindemann, Max Luebke (University of
@ -89,7 +89,7 @@ public:
const std::vector<std::int32_t> &key_indices,
const std::vector<std::string> &output_names,
const ChemistryParams::Chem_Hook_Functions &hooks,
uint32_t data_count);
uint32_t data_count, bool with_interp);
/**
* @brief Destroy the dht wrapper object
*
@ -240,7 +240,14 @@ private:
const std::vector<double> &new_results);
std::vector<double>
inputAndRatesToOutput(const std::vector<double> &dht_data);
inputAndRatesToOutput(const std::vector<double> &dht_data,
const std::vector<double> &input_values);
std::vector<double> outputToRates(const std::vector<double> &old_results,
const std::vector<double> &new_results);
std::vector<double> ratesToOutput(const std::vector<double> &dht_data,
const std::vector<double> &input_values);
uint32_t dht_hits = 0;
uint32_t dht_evictions = 0;
@ -254,6 +261,7 @@ private:
const std::vector<std::string> &output_names;
const ChemistryParams::Chem_Hook_Functions &hooks;
const bool with_interp;
DHT_ResultObject dht_results;

6
src/ChemistryModule/ChemistryModule.cpp
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@ -378,9 +378,9 @@ void poet::ChemistryModule::initializeDHT(
const std::uint64_t dht_size = size_mb * MB_FACTOR;
this->dht =
new DHT_Wrapper(dht_comm, dht_size, map_copy, key_indices,
this->prop_names, params.hooks, this->prop_count);
this->dht = new DHT_Wrapper(dht_comm, dht_size, map_copy, key_indices,
this->prop_names, params.hooks,
this->prop_count, params.use_interp);
this->dht->setBaseTotals(base_totals.at(0), base_totals.at(1));
}
}

57
src/ChemistryModule/SurrogateModels/DHT_Wrapper.cpp
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@ -1,4 +1,4 @@
// Time-stamp: "Last modified 2023-08-16 16:44:17 mluebke"
// Time-stamp: "Last modified 2023-09-08 22:09:03 mluebke"
/*
** Copyright (C) 2018-2021 Alexander Lindemann, Max Luebke (University of
@ -48,15 +48,17 @@ DHT_Wrapper::DHT_Wrapper(MPI_Comm dht_comm, std::uint64_t dht_size,
const std::vector<std::int32_t> &key_indices,
const std::vector<std::string> &_output_names,
const ChemistryParams::Chem_Hook_Functions &_hooks,
uint32_t data_count)
uint32_t data_count, bool _with_interp)
: key_count(key_indices.size()), data_count(data_count),
input_key_elements(key_indices), communicator(dht_comm),
key_species(key_species), output_names(_output_names), hooks(_hooks) {
key_species(key_species), output_names(_output_names), hooks(_hooks),
with_interp(_with_interp) {
// initialize DHT object
// key size = count of key elements + timestep
uint32_t key_size = (key_count + 1) * sizeof(Lookup_Keyelement);
uint32_t data_size =
(data_count + input_key_elements.size()) * sizeof(double);
(data_count + (with_interp ? input_key_elements.size() : 0)) *
sizeof(double);
uint32_t buckets_per_process =
static_cast<std::uint32_t>(dht_size / (data_size + key_size));
dht_object = DHT_create(dht_comm, buckets_per_process, data_size, key_size,
@ -93,8 +95,8 @@ auto DHT_Wrapper::checkDHT(WorkPackage &work_package)
const auto length = work_package.size;
std::vector<double> bucket_writer(this->data_count +
input_key_elements.size());
std::vector<double> bucket_writer(
this->data_count + (with_interp ? input_key_elements.size() : 0));
// loop over every grid cell contained in work package
for (int i = 0; i < length; i++) {
@ -107,7 +109,10 @@ auto DHT_Wrapper::checkDHT(WorkPackage &work_package)
switch (res) {
case DHT_SUCCESS:
work_package.output[i] = inputAndRatesToOutput(bucket_writer);
work_package.output[i] =
(with_interp
? inputAndRatesToOutput(bucket_writer, work_package.input[i])
: bucket_writer);
work_package.mapping[i] = CHEM_DHT;
this->dht_hits++;
break;
@ -145,7 +150,10 @@ void DHT_Wrapper::fillDHT(const WorkPackage &work_package) {
uint32_t proc, index;
auto &key = dht_results.keys[i];
const auto data =
outputToInputAndRates(work_package.input[i], work_package.output[i]);
(with_interp
? outputToInputAndRates(work_package.input[i],
work_package.output[i])
: work_package.output[i]);
// void *data = (void *)&(work_package[i * this->data_count]);
// fuzz data (round, logarithm etc.)
@ -165,7 +173,7 @@ void DHT_Wrapper::fillDHT(const WorkPackage &work_package) {
}
}
std::vector<double>
inline std::vector<double>
DHT_Wrapper::outputToInputAndRates(const std::vector<double> &old_results,
const std::vector<double> &new_results) {
const int prefix_size = this->input_key_elements.size();
@ -183,11 +191,12 @@ DHT_Wrapper::outputToInputAndRates(const std::vector<double> &old_results,
return output;
}
std::vector<double>
DHT_Wrapper::inputAndRatesToOutput(const std::vector<double> &dht_data) {
inline std::vector<double>
DHT_Wrapper::inputAndRatesToOutput(const std::vector<double> &dht_data,
const std::vector<double> &input_values) {
const int prefix_size = this->input_key_elements.size();
std::vector<double> output{dht_data.begin() + prefix_size, dht_data.end()};
std::vector<double> output(input_values);
for (int i = 0; i < prefix_size; i++) {
const int data_elem_i = input_key_elements[i];
@ -197,6 +206,30 @@ DHT_Wrapper::inputAndRatesToOutput(const std::vector<double> &dht_data) {
return output;
}
inline std::vector<double>
DHT_Wrapper::outputToRates(const std::vector<double> &old_results,
const std::vector<double> &new_results) {
std::vector<double> output(new_results);
for (const auto &data_elem_i : input_key_elements) {
output[data_elem_i] -= old_results[data_elem_i];
}
return output;
}
inline std::vector<double>
DHT_Wrapper::ratesToOutput(const std::vector<double> &dht_data,
const std::vector<double> &input_values) {
std::vector<double> output(input_values);
for (const auto &data_elem_i : input_key_elements) {
output[data_elem_i] += dht_data[data_elem_i];
}
return output;
}
// void DHT_Wrapper::resultsToWP(std::vector<double> &work_package) {
// for (int i = 0; i < dht_results.length; i++) {
// if (!dht_results.needPhreeqc[i]) {