84 lines
2.7 KiB
Plaintext
84 lines
2.7 KiB
Plaintext
/*!
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* Copyright 2022 XGBoost contributors
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*/
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#include <gtest/gtest.h>
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#include <thrust/host_vector.h>
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#include <ctime>
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#include <iostream>
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#include <thread>
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#include "../../../plugin/federated/federated_communicator.h"
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#include "../../../src/collective/device_communicator_adapter.cuh"
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#include "./helpers.h"
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namespace xgboost::collective {
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class FederatedAdapterTest : public BaseFederatedTest {};
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TEST(FederatedAdapterSimpleTest, ThrowOnInvalidDeviceOrdinal) {
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auto construct = []() { DeviceCommunicatorAdapter adapter{-1, nullptr}; };
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EXPECT_THROW(construct(), dmlc::Error);
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}
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TEST(FederatedAdapterSimpleTest, ThrowOnInvalidCommunicator) {
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auto construct = []() { DeviceCommunicatorAdapter adapter{0, nullptr}; };
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EXPECT_THROW(construct(), dmlc::Error);
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}
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TEST_F(FederatedAdapterTest, DeviceAllReduceSum) {
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std::vector<std::thread> threads;
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for (auto rank = 0; rank < kWorldSize; rank++) {
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threads.emplace_back([rank, server_address = server_address_] {
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FederatedCommunicator comm{kWorldSize, rank, server_address};
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// Assign device 0 to all workers, since we run gtest in a single-GPU machine
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DeviceCommunicatorAdapter adapter{0, &comm};
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int count = 3;
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thrust::device_vector<double> buffer(count, 0);
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thrust::sequence(buffer.begin(), buffer.end());
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adapter.AllReduceSum(buffer.data().get(), count);
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thrust::host_vector<double> host_buffer = buffer;
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EXPECT_EQ(host_buffer.size(), count);
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for (auto i = 0; i < count; i++) {
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EXPECT_EQ(host_buffer[i], i * kWorldSize);
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}
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});
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}
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for (auto& thread : threads) {
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thread.join();
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}
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}
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TEST_F(FederatedAdapterTest, DeviceAllGatherV) {
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std::vector<std::thread> threads;
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for (auto rank = 0; rank < kWorldSize; rank++) {
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threads.emplace_back([rank, server_address = server_address_] {
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FederatedCommunicator comm{kWorldSize, rank, server_address};
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// Assign device 0 to all workers, since we run gtest in a single-GPU machine
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DeviceCommunicatorAdapter adapter{0, &comm};
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int const count = rank + 2;
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thrust::device_vector<char> buffer(count, 0);
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thrust::sequence(buffer.begin(), buffer.end());
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std::vector<std::size_t> segments(kWorldSize);
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dh::caching_device_vector<char> receive_buffer{};
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adapter.AllGatherV(buffer.data().get(), count, &segments, &receive_buffer);
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EXPECT_EQ(segments[0], 2);
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EXPECT_EQ(segments[1], 3);
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thrust::host_vector<char> host_buffer = receive_buffer;
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EXPECT_EQ(host_buffer.size(), 9);
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int expected[] = {0, 1, 0, 1, 2, 0, 1, 2, 3};
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for (auto i = 0; i < 9; i++) {
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EXPECT_EQ(host_buffer[i], expected[i]);
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}
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});
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}
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for (auto& thread : threads) {
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thread.join();
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}
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}
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} // namespace xgboost::collective
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