8fe1a2213c
* Cleanup code for distributed training. - Merge `GetNcclResult` into nccl stub. - Split up utilities from the main dask module. - Let Channel return `Result` to accommodate nccl channel. - Remove old `use_label_encoder` parameter.
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
/**
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* Copyright 2023, XGBoost Contributors
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*/
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#include <gtest/gtest.h>
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#include "../../../src/collective/comm.h"
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#include "../../../src/common/type.h" // for EraseType
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#include "test_worker.h" // for TrackerTest
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namespace xgboost::collective {
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namespace {
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class CommTest : public TrackerTest {};
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} // namespace
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TEST_F(CommTest, Channel) {
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auto n_workers = 4;
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RabitTracker tracker{host, n_workers, 0, timeout};
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auto fut = tracker.Run();
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std::vector<std::thread> workers;
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std::int32_t port = tracker.Port();
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for (std::int32_t i = 0; i < n_workers; ++i) {
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workers.emplace_back([=] {
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WorkerForTest worker{host, port, timeout, n_workers, i};
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if (i % 2 == 0) {
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auto p_chan = worker.Comm().Chan(i + 1);
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auto rc = Success() << [&] {
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return p_chan->SendAll(
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EraseType(common::Span<std::int32_t const>{&i, static_cast<std::size_t>(1)}));
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} << [&] { return p_chan->Block(); };
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ASSERT_TRUE(rc.OK()) << rc.Report();
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} else {
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auto p_chan = worker.Comm().Chan(i - 1);
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std::int32_t r{-1};
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auto rc = Success() << [&] {
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return p_chan->RecvAll(
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EraseType(common::Span<std::int32_t>{&r, static_cast<std::size_t>(1)}));
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} << [&] { return p_chan->Block(); };
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ASSERT_TRUE(rc.OK()) << rc.Report();
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ASSERT_EQ(r, i - 1);
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}
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});
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}
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for (auto &w : workers) {
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w.join();
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}
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ASSERT_TRUE(fut.get().OK());
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}
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} // namespace xgboost::collective
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