55aef8f546
* [EM] Avoid resizing host cache. - Add SAM allocator and resource. - Use page-based cache instead of stream-based cache.
37 lines
951 B
Plaintext
37 lines
951 B
Plaintext
/**
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* Copyright 2024, XGBoost Contributors
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*/
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#include <gtest/gtest.h>
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#include <xgboost/context.h> // for Context
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#include <vector>
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#include "../../../src/common/cuda_pinned_allocator.h"
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#include "../../../src/common/device_helpers.cuh" // for DefaultStream
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#include "../../../src/common/numeric.h" // for Iota
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namespace xgboost {
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TEST(CudaHostMalloc, Pinned) {
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std::vector<float, common::cuda_impl::PinnedAllocator<float>> vec;
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vec.resize(10);
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ASSERT_EQ(vec.size(), 10);
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Context ctx;
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common::Iota(&ctx, vec.begin(), vec.end(), 0);
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float k = 0;
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for (auto v : vec) {
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ASSERT_EQ(v, k);
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++k;
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}
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}
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TEST(CudaHostMalloc, Managed) {
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std::vector<float, common::cuda_impl::ManagedAllocator<float>> vec;
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vec.resize(10);
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#if defined(__linux__)
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dh::safe_cuda(
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cudaMemPrefetchAsync(vec.data(), vec.size() * sizeof(float), 0, dh::DefaultStream()));
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#endif
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dh::DefaultStream().Sync();
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}
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} // namespace xgboost
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