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/**
* Copyright 2022-2023, XGBoost contributors
*/
#pragma once
#include <gtest/gtest.h>
#include <chrono> // for ms, seconds
#include <memory> // for shared_ptr
#include <thread> // for thread
#include "../../../../plugin/federated/federated_tracker.h"
#include "../../../../src/collective/comm_group.h"
#include "../../../../src/collective/communicator-inl.h"
#include "federated_comm.h" // for FederatedComm
#include "xgboost/json.h" // for Json
namespace xgboost::collective {
inline Json FederatedTestConfig(std::int32_t n_workers, std::int32_t port, std::int32_t i) {
Json config{Object{}};
config["dmlc_communicator"] = std::string{"federated"};
config["dmlc_task_id"] = std::to_string(i);
config["dmlc_retry"] = 2;
config["federated_world_size"] = n_workers;
config["federated_rank"] = i;
config["federated_server_address"] = "0.0.0.0:" + std::to_string(port);
return config;
}
template <typename WorkerFn>
void TestFederatedImpl(std::int32_t n_workers, WorkerFn&& fn) {
Json config{Object()};
config["federated_secure"] = Boolean{false};
config["n_workers"] = Integer{n_workers};
FederatedTracker tracker{config};
auto fut = tracker.Run();
std::vector<std::thread> workers;
using namespace std::chrono_literals;
auto rc = tracker.WaitUntilReady();
SafeColl(rc);
std::int32_t port = tracker.Port();
for (std::int32_t i = 0; i < n_workers; ++i) {
workers.emplace_back([=] { fn(port, i); });
}
for (auto& t : workers) {
t.join();
}
rc = tracker.Shutdown();
SafeColl(rc);
SafeColl(fut.get());
}
template <typename WorkerFn>
void TestFederated(std::int32_t n_workers, WorkerFn&& fn) {
TestFederatedImpl(n_workers, [&](std::int32_t port, std::int32_t i) {
auto config = FederatedTestConfig(n_workers, port, i);
auto comm = std::make_shared<FederatedComm>(
DefaultRetry(), std::chrono::seconds{DefaultTimeoutSec()}, std::to_string(i), config);
fn(comm, i);
});
}
template <typename WorkerFn>
void TestFederatedGroup(std::int32_t n_workers, WorkerFn&& fn) {
TestFederatedImpl(n_workers, [&](std::int32_t port, std::int32_t i) {
auto config = FederatedTestConfig(n_workers, port, i);
std::shared_ptr<CommGroup> comm_group{CommGroup::Create(config)};
fn(comm_group, i);
});
}
template <typename WorkerFn>
void TestFederatedGlobal(std::int32_t n_workers, WorkerFn&& fn) {
TestFederatedImpl(n_workers, [&](std::int32_t port, std::int32_t i) {
auto config = FederatedTestConfig(n_workers, port, i);
collective::Init(config);
fn();
collective::Finalize();
});
}
} // namespace xgboost::collective
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