xgboost/tests/cpp/metric/test_multiclass_metric.cc
Jiaming Yuan c589eff941
De-duplicate GPU parameters. (#4454)
* Only define `gpu_id` and `n_gpus` in `LearnerTrainParam`
* Pass LearnerTrainParam through XGBoost vid factory method.
* Disable all GPU usage when GPU related parameters are not specified (fixes XGBoost choosing GPU over aggressively).
* Test learner train param io.
* Fix gpu pickling.
2019-05-29 11:55:57 +08:00

73 lines
2.2 KiB
C++

// Copyright by Contributors
#include <xgboost/metric.h>
#include <string>
#include "../helpers.h"
inline void TestMultiClassError(xgboost::GPUSet const& devices) {
auto lparam = xgboost::CreateEmptyGenericParam(0, NGPUS);
lparam.gpu_id = *devices.begin();
lparam.n_gpus = devices.Size();
xgboost::Metric * metric = xgboost::Metric::Create("merror", &lparam);
metric->Configure({});
ASSERT_STREQ(metric->Name(), "merror");
EXPECT_ANY_THROW(GetMetricEval(metric, {0}, {0, 0}));
EXPECT_NEAR(GetMetricEval(
metric, {1, 0, 0, 0, 1, 0, 0, 0, 1}, {0, 1, 2}), 0, 1e-10);
EXPECT_NEAR(GetMetricEval(metric,
{0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f},
{0, 1, 2}),
0.666f, 0.001f);
delete metric;
}
TEST(Metric, DeclareUnifiedTest(MultiClassError)) {
auto devices = xgboost::GPUSet::Range(0, NGPUS);
TestMultiClassError(devices);
}
inline void TestMultiClassLogLoss(xgboost::GPUSet const& devices) {
auto lparam = xgboost::CreateEmptyGenericParam(0, NGPUS);
lparam.gpu_id = *devices.begin();
lparam.n_gpus = devices.Size();
xgboost::Metric * metric = xgboost::Metric::Create("mlogloss", &lparam);
metric->Configure({});
ASSERT_STREQ(metric->Name(), "mlogloss");
EXPECT_ANY_THROW(GetMetricEval(metric, {0}, {0, 0}));
EXPECT_NEAR(GetMetricEval(
metric, {1, 0, 0, 0, 1, 0, 0, 0, 1}, {0, 1, 2}), 0, 1e-10);
EXPECT_NEAR(GetMetricEval(metric,
{0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f, 0.1f},
{0, 1, 2}),
2.302f, 0.001f);
delete metric;
}
TEST(Metric, DeclareUnifiedTest(MultiClassLogLoss)) {
auto devices = xgboost::GPUSet::Range(0, NGPUS);
TestMultiClassLogLoss(devices);
}
#if defined(XGBOOST_USE_NCCL) && defined(__CUDACC__)
TEST(Metric, MGPU_MultiClassError) {
{
auto devices = xgboost::GPUSet::All(0, -1);
TestMultiClassError(devices);
}
{
auto devices = xgboost::GPUSet::All(1, -1);
TestMultiClassError(devices);
}
{
auto devices = xgboost::GPUSet::All(0, -1);
TestMultiClassLogLoss(devices);
}
{
auto devices = xgboost::GPUSet::All(1, -1);
TestMultiClassLogLoss(devices);
}
}
#endif // defined(XGBOOST_USE_NCCL)