mirror of
https://github.com/ROCm/jax.git
synced 2025-04-25 13:26:09 +00:00
9ab88071a7
scipy accounts for around 400ms of the 900ms of JAX's import time. By loading scipy lazily, we can improve the timing of `import jax` down to about 500ms.
47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
# Copyright 2022 The JAX Authors.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# https://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import os
|
|
import sys
|
|
|
|
from absl.testing import absltest
|
|
from jax._src import test_util as jtu
|
|
|
|
|
|
class LazyLoaderTest(absltest.TestCase):
|
|
|
|
def testLazyLoader(self):
|
|
self.assertEmpty([m for m in sys.modules if "lazy_test_submodule" in m])
|
|
|
|
# This manipulation of sys.path exists to make this test work in Google's
|
|
# Hermetic Python environment: it ensures the module is resolvable.
|
|
saved_path = sys.path[0]
|
|
try:
|
|
sys.path[0] = os.path.dirname(__file__)
|
|
import lazy_loader_module as l
|
|
finally:
|
|
sys.path[0] = saved_path
|
|
|
|
self.assertEqual(["lazy_test_submodule"], l.__all__)
|
|
self.assertEqual(["lazy_test_submodule"], dir(l))
|
|
|
|
# The submodule should be imported only after it is accessed.
|
|
self.assertEmpty([m for m in sys.modules if "lazy_test_submodule" in m])
|
|
self.assertEqual(42, l.lazy_test_submodule.a_function())
|
|
self.assertLen([m for m in sys.modules if "lazy_test_submodule" in m], 1)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
absltest.main(testLoader=jtu.JaxTestLoader())
|