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Add multi-GPU unit test environment (#3741)

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* Add multi-GPU unit test environment

* Better assertion message

* Temporarily disable failing test

* Distinguish between multi-GPU and single-GPU CPP tests

* Consolidate Python tests. Use attributes to distinguish multi-GPU Python tests from single-CPU counterparts
This commit is contained in:
Philip Hyunsu Cho
2018-09-29 11:20:58 -07:00
committed by GitHub
parent baef5741df
commit b50bc2c1d4
6 changed files with 42 additions and 7 deletions
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16
tests/python-gpu/test_gpu_updaters.py
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@@ -6,7 +6,7 @@ sys.path.append("tests/python")
import xgboost as xgb
from regression_test_utilities import run_suite, parameter_combinations, \
assert_results_non_increasing
from nose.plugins.attrib import attr
def assert_gpu_results(cpu_results, gpu_results):
for cpu_res, gpu_res in zip(cpu_results, gpu_results):
@@ -38,3 +38,17 @@ class TestGPU(unittest.TestCase):
param['tree_method'] = 'hist'
cpu_results = run_suite(param, select_datasets=datasets)
assert_gpu_results(cpu_results, gpu_results)
@attr('mgpu')
def test_gpu_hist_mgpu(self):
variable_param = {'n_gpus': [-1], 'max_depth': [2, 10], 'max_leaves': [255, 4],
'max_bin': [2, 256],
'grow_policy': ['lossguide']}
for param in parameter_combinations(variable_param):
param['tree_method'] = 'gpu_hist'
gpu_results = run_suite(param, select_datasets=datasets)
assert_results_non_increasing(gpu_results, 1e-2)
# FIXME: re-enable next three lines, to compare against CPU
#param['tree_method'] = 'hist'
#cpu_results = run_suite(param, select_datasets=datasets)
#assert_gpu_results(cpu_results, gpu_results)