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Correctly set CUDA device #423

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Merged
merged 2 commits into from
Apr 6, 2025
Merged

Correctly set CUDA device #423

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ea3d90d
Update hash_map.cu
rusty1s Apr 6, 2025
5141f64
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Apr 6, 2025
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6 changes: 3 additions & 3 deletions pyg_lib/csrc/classes/cuda/hash_map.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,7 @@ struct CUDAHashMapImpl : HashMapImpl {

CUDAHashMapImpl(const at::Tensor& key, double load_factor)
: device_(key.device()) {
at::cuda::SetDevice(key.get_device());
cudaSetDevice(key.get_device());

KeyType constexpr empty_key_sentinel = std::numeric_limits<KeyType>::min();
ValueType constexpr empty_value_sentinel = -1;
Expand All @@ -59,7 +59,7 @@ struct CUDAHashMapImpl : HashMapImpl {
}

at::Tensor get(const at::Tensor& query) override {
at::cuda::SetDevice(query.get_device());
cudaSetDevice(query.get_device());

const auto options =
query.options().dtype(c10::CppTypeToScalarType<ValueType>::value);
Expand All @@ -73,7 +73,7 @@ struct CUDAHashMapImpl : HashMapImpl {
}

at::Tensor keys() override {
at::cuda::SetDevice(device_.index());
cudaSetDevice(device_.index());

const auto options = at::TensorOptions().device(device_);
const at::Tensor key = at::empty({size()}, options.dtype(dtype()));
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