xgboost/src/data/proxy_dmatrix.cuh
Jiaming Yuan 39390cc2ee
[breaking] Remove the predictor param, allow fallback to prediction using DMatrix. (#9129)
- A `DeviceOrd` struct is implemented to indicate the device. It will eventually replace the `gpu_id` parameter.
- The `predictor` parameter is removed.
- Fallback to `DMatrix` when `inplace_predict` is not available.
- The heuristic for choosing a predictor is only used during training.
2023-07-03 19:23:54 +08:00

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/**
* Copyright 2021-2023 XGBoost contributors
*/
#include <any> // for any, any_cast
#include "device_adapter.cuh"
#include "proxy_dmatrix.h"
namespace xgboost::data::cuda_impl {
template <bool get_value = true, typename Fn>
decltype(auto) Dispatch(DMatrixProxy const* proxy, Fn fn) {
if (proxy->Adapter().type() == typeid(std::shared_ptr<CupyAdapter>)) {
if constexpr (get_value) {
auto value = std::any_cast<std::shared_ptr<CupyAdapter>>(proxy->Adapter())->Value();
return fn(value);
} else {
auto value = std::any_cast<std::shared_ptr<CupyAdapter>>(proxy->Adapter());
return fn(value);
}
} else if (proxy->Adapter().type() == typeid(std::shared_ptr<CudfAdapter>)) {
if constexpr (get_value) {
auto value = std::any_cast<std::shared_ptr<CudfAdapter>>(proxy->Adapter())->Value();
return fn(value);
} else {
auto value = std::any_cast<std::shared_ptr<CudfAdapter>>(proxy->Adapter());
return fn(value);
}
} else {
LOG(FATAL) << "Unknown type: " << proxy->Adapter().type().name();
if constexpr (get_value) {
auto value = std::any_cast<std::shared_ptr<CudfAdapter>>(proxy->Adapter())->Value();
return fn(value);
} else {
auto value = std::any_cast<std::shared_ptr<CudfAdapter>>(proxy->Adapter());
return fn(value);
}
}
}
} // namespace xgboost::data::cuda_impl