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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project
// This file tests the primitives of the Tuning system
#include <iostream>
#include <Kokkos_Macros.hpp>
#ifdef KOKKOS_ENABLE_EXPERIMENTAL_CXX20_MODULES
import kokkos.core;
#else
#include <Kokkos_Core.hpp>
#endif
#include <stdexcept>
#include <string>
#include <unordered_map>
#include <vector>
static size_t expectedNumberOfContextVariables;
static int64_t expectedContextVariableValue;
int main() {
Kokkos::initialize();
{
auto context = Kokkos::Tools::Experimental::get_new_context_id();
Kokkos::Tools::Experimental::VariableInfo contextVariableInfo;
contextVariableInfo.category = Kokkos::Tools::Experimental::
StatisticalCategory::kokkos_value_categorical;
contextVariableInfo.type =
Kokkos::Tools::Experimental::ValueType::kokkos_value_int64;
contextVariableInfo.valueQuantity =
Kokkos::Tools::Experimental::CandidateValueType::kokkos_value_unbounded;
Kokkos::Tools::Experimental::VariableInfo tuningVariableInfo;
tuningVariableInfo.category = Kokkos::Tools::Experimental::
StatisticalCategory::kokkos_value_categorical;
tuningVariableInfo.type =
Kokkos::Tools::Experimental::ValueType::kokkos_value_int64;
tuningVariableInfo.valueQuantity =
Kokkos::Tools::Experimental::CandidateValueType::kokkos_value_set;
std::vector<int64_t> candidate_value_vector = {0, 1, 2, 3, 4,
5, 6, 7, 8, 9};
Kokkos::Tools::Experimental::SetOrRange allowed_values =
Kokkos::Tools::Experimental::make_candidate_set(
candidate_value_vector.size(), candidate_value_vector.data());
// test that ID's are transmitted to the tool
Kokkos::Tools::Experimental::set_declare_output_type_callback(
[](const char*, const size_t,
Kokkos::Tools::Experimental::VariableInfo* info) {
if (info->type !=
Kokkos::Tools::Experimental::ValueType::kokkos_value_int64) {
Kokkos::abort("Tuning Variable has wrong type");
}
});
Kokkos::Tools::Experimental::set_declare_input_type_callback(
[](const char*, const size_t,
Kokkos::Tools::Experimental::VariableInfo* info) {
if (info->type !=
Kokkos::Tools::Experimental::ValueType::kokkos_value_int64) {
Kokkos::abort("Context Variable has wrong type");
}
});
tuningVariableInfo.candidates = allowed_values;
auto contextVariableId = Kokkos::Tools::Experimental::declare_input_type(
"kokkos.testing.context_variable", contextVariableInfo);
auto tuningVariableId = Kokkos::Tools::Experimental::declare_output_type(
"kokkos.testing.tuning_variable", tuningVariableInfo);
// test that we correctly pass context values, and receive tuning variables
// back in return
Kokkos::Tools::Experimental::VariableValue contextValues[] = {
Kokkos::Tools::Experimental::make_variable_value(contextVariableId,
int64_t(0))};
Kokkos::Tools::Experimental::set_input_values(context, 1, contextValues);
Kokkos::Tools::Experimental::set_request_output_values_callback(
[](const size_t, const size_t,
const Kokkos::Tools::Experimental::VariableValue* context_values,
const size_t,
Kokkos::Tools::Experimental::VariableValue* tuning_values) {
auto candidate_values = tuning_values[0].metadata->candidates;
if (context_values[0].value.int_value !=
expectedContextVariableValue) {
Kokkos::abort(
"Context variables not correctly passed to tuning callbacks");
}
int tuningVariableSetSize = candidate_values.set.size;
std::cout << "Set of size " << tuningVariableSetSize << std::endl;
// tuning methodology via https://xkcd.com/221/
tuning_values[0].value.int_value =
candidate_values.set.values.int_value[4 % tuningVariableSetSize];
});
Kokkos::Tools::Experimental::VariableValue tuningValues[] = {
Kokkos::Tools::Experimental::make_variable_value(tuningVariableId,
int64_t(0))};
Kokkos::Tools::Experimental::request_output_values(context, 1,
tuningValues);
std::cout << tuningValues[0].value.int_value << ","
<< candidate_value_vector[4] << std::endl;
if (tuningValues[0].value.int_value != candidate_value_vector[4]) {
Kokkos::abort("Tuning value return is incorrect");
}
Kokkos::Tools::Experimental::end_context(context);
// test nested contexts
auto outerContext = Kokkos::Tools::Experimental::get_new_context_id();
auto innerContext = Kokkos::Tools::Experimental::get_new_context_id();
Kokkos::Tools::Experimental::VariableInfo secondContextVariableInfo;
secondContextVariableInfo.category = Kokkos::Tools::Experimental::
StatisticalCategory::kokkos_value_categorical;
secondContextVariableInfo.type =
Kokkos::Tools::Experimental::ValueType::kokkos_value_int64;
secondContextVariableInfo.valueQuantity =
Kokkos::Tools::Experimental::CandidateValueType::kokkos_value_unbounded;
auto secondContextVariableId =
Kokkos::Tools::Experimental::declare_output_type(
"kokkos.testing.second_context_variable",
secondContextVariableInfo);
Kokkos::Tools::Experimental::VariableValue contextValueTwo[] = {
Kokkos::Tools::Experimental::make_variable_value(
secondContextVariableId, int64_t(1))};
Kokkos::Tools::Experimental::set_request_output_values_callback(
[](const size_t, const size_t num_context_variables,
const Kokkos::Tools::Experimental::VariableValue*, const size_t,
Kokkos::Tools::Experimental::VariableValue*) {
std::cout << "Expect " << expectedNumberOfContextVariables
<< ", have " << num_context_variables << std::endl;
if (num_context_variables != expectedNumberOfContextVariables) {
Kokkos::abort(
"Incorrect number of context variables in nested tuning "
"contexts");
}
});
Kokkos::Tools::Experimental::set_input_values(outerContext, 1,
contextValues);
expectedNumberOfContextVariables = 1;
Kokkos::Tools::Experimental::request_output_values(outerContext, 1,
tuningValues);
Kokkos::Tools::Experimental::set_input_values(innerContext, 1,
contextValueTwo);
expectedNumberOfContextVariables = 2;
Kokkos::Tools::Experimental::request_output_values(innerContext, 1,
tuningValues);
} // end Kokkos block
Kokkos::finalize();
}
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