xgboost/tests/cpp/linear/test_linear.cu
Jiaming Yuan 095de3bf5f
Export c++ headers in CMake installation. (#4897)
* Move get transpose into cc.

* Clean up headers in host device vector, remove thrust dependency.

* Move span and host device vector into public.

* Install c++ headers.

* Short notes for c and c++.

Co-Authored-By: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
2019-10-06 23:53:09 -04:00

28 lines
888 B
Plaintext

// Copyright by Contributors
#include <xgboost/linear_updater.h>
#include <xgboost/gbm.h>
#include "../helpers.h"
#include "../../../src/gbm/gblinear_model.h"
namespace xgboost {
TEST(Linear, GPUCoordinate) {
auto mat = xgboost::CreateDMatrix(10, 10, 0);
auto lparam = CreateEmptyGenericParam(GPUIDX);
auto updater = std::unique_ptr<xgboost::LinearUpdater>(
xgboost::LinearUpdater::Create("gpu_coord_descent", &lparam));
updater->Configure({{"eta", "1."}});
xgboost::HostDeviceVector<xgboost::GradientPair> gpair(
(*mat)->Info().num_row_, xgboost::GradientPair(-5, 1.0));
xgboost::gbm::GBLinearModel model;
model.param.num_feature = (*mat)->Info().num_col_;
model.param.num_output_group = 1;
model.LazyInitModel();
updater->Update(&gpair, (*mat).get(), &model, gpair.Size());
ASSERT_EQ(model.bias()[0], 5.0f);
delete mat;
}
} // namespace xgboost