60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*!
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* Copyright 2015-2022 by Contributors
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* \file objective.cc
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* \brief Registry of all objective functions.
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*/
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#include <dmlc/registry.h>
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#include <xgboost/context.h>
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#include <xgboost/objective.h>
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#include <sstream>
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#include "xgboost/host_device_vector.h"
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namespace dmlc {
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DMLC_REGISTRY_ENABLE(::xgboost::ObjFunctionReg);
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} // namespace dmlc
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namespace xgboost {
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// implement factory functions
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ObjFunction* ObjFunction::Create(const std::string& name, Context const* ctx) {
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auto *e = ::dmlc::Registry< ::xgboost::ObjFunctionReg>::Get()->Find(name);
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if (e == nullptr) {
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std::stringstream ss;
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for (const auto& entry : ::dmlc::Registry< ::xgboost::ObjFunctionReg>::List()) {
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ss << "Objective candidate: " << entry->name << "\n";
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}
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LOG(FATAL) << "Unknown objective function: `" << name << "`\n"
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<< ss.str();
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}
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auto pobj = (e->body)();
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pobj->ctx_ = ctx;
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return pobj;
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}
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void ObjFunction::InitEstimation(MetaInfo const&, linalg::Tensor<float, 1>* base_score) const {
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CHECK(base_score);
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base_score->Reshape(1);
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(*base_score)(0) = DefaultBaseScore();
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}
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} // namespace xgboost
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namespace xgboost {
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namespace obj {
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// List of files that will be force linked in static links.
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#ifdef XGBOOST_USE_CUDA
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DMLC_REGISTRY_LINK_TAG(regression_obj_gpu);
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DMLC_REGISTRY_LINK_TAG(quantile_obj_gpu);
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DMLC_REGISTRY_LINK_TAG(hinge_obj_gpu);
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DMLC_REGISTRY_LINK_TAG(multiclass_obj_gpu);
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DMLC_REGISTRY_LINK_TAG(rank_obj_gpu);
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#else
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DMLC_REGISTRY_LINK_TAG(regression_obj);
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DMLC_REGISTRY_LINK_TAG(quantile_obj);
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DMLC_REGISTRY_LINK_TAG(hinge_obj);
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DMLC_REGISTRY_LINK_TAG(multiclass_obj);
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DMLC_REGISTRY_LINK_TAG(rank_obj);
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#endif // XGBOOST_USE_CUDA
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} // namespace obj
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} // namespace xgboost
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