wehub-resource-sync
65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
// Copyright (c) 2026 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Verify that including both headers in the same translation unit compiles
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// cleanly (no ODR violations) and that the canonical PhiloxCudaState
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// definition is consistent across both include paths.
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#include <gtest/gtest.h>
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#include <ATen/cuda/PhiloxCudaState.h>
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#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
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#include <ATen/cuda/CUDAGeneratorImpl.h>
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#include <ATen/cuda/PhiloxUtils.cuh>
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#endif
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// offset_intragraph_ must be uint64_t to match PyTorch upstream.
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static_assert(std::is_same_v<decltype(at::PhiloxCudaState{}.offset_intragraph_),
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uint64_t>,
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"PhiloxCudaState::offset_intragraph_ must be uint64_t");
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TEST(ATenPhiloxTest, TypeConsistency) {
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// The static_assert above already fires at compile time; this test
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// confirms the field size at runtime as well.
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EXPECT_EQ(sizeof(at::PhiloxCudaState{}.offset_intragraph_), sizeof(uint64_t));
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}
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#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
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TEST(ATenPhiloxTest, UnpackNonCaptured) {
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constexpr uint64_t kSeed = 42ULL;
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constexpr uint64_t kOffset = 100ULL;
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at::PhiloxCudaState state(kSeed, kOffset);
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EXPECT_FALSE(state.captured_);
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auto [seed, offset] = at::cuda::philox::unpack(state);
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EXPECT_EQ(seed, kSeed);
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EXPECT_EQ(offset, kOffset);
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}
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TEST(ATenPhiloxTest, DefaultConstructedNotCaptured) {
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at::PhiloxCudaState state;
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EXPECT_FALSE(state.captured_);
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EXPECT_EQ(state.offset_intragraph_, 0ULL);
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}
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TEST(ATenPhiloxTest, NonCapturedOffsetIntragraphIgnored) {
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// In the non-captured path, offset_intragraph_ plays no role in unpack().
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at::PhiloxCudaState state(7ULL, 13ULL);
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state.offset_intragraph_ = 999ULL; // should be ignored
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auto [seed, offset] = at::cuda::philox::unpack(state);
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EXPECT_EQ(seed, 7ULL);
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EXPECT_EQ(offset, 13ULL);
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}
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#endif
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