gpu.hpp

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/*
 * Copyright (c) 2023-2024, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
#include <cuml/experimental/fil/detail/raft_proto/cuda_check.hpp>
#include <cuml/experimental/fil/detail/raft_proto/detail/device_id/base.hpp>
#include <cuml/experimental/fil/detail/raft_proto/device_type.hpp>
 
#include <rmm/cuda_device.hpp>
 
namespace raft_proto {
namespace detail {
template <>
struct device_id<device_type::gpu> {
  using value_type = typename rmm::cuda_device_id::value_type;
  device_id() noexcept(false)
    : id_{[]() {
        auto raw_id = value_type{};
        raft_proto::cuda_check(cudaGetDevice(&raw_id));
        return raw_id;
      }()} {};
  device_id(value_type dev_id) noexcept : id_{dev_id} {};
 
  auto value() const noexcept { return id_.value(); }
 
 private:
  rmm::cuda_device_id id_;
};
}  // namespace detail
}  // namespace raft_proto