Chainer v6.3.0 をリリースしました

[Hiroyuki Yamazaki]

Chainer v6.3.0 をリリースしました！ リリースノートは以下の通りです。

This is the release note of v6.3.0. See here for the complete list of solved issues and merged PRs.

Highlights

• NumPy 1.17 is now officially supported.

New Features

• Add automatic management of snapshots (deletion and load) (#7862)

Enhancements

• Fix Adam FP16 overflow on gpu kernels (#7780)
• Make F.average as accurate as backend (#7782)
• Fix type_check error message on evaluating bool expression (#7801)
• Fix module in msg of type_check (#7810)
• Fix F.clip for NumPy 1.17 (#7855)

Bug Fixes

• Fix Parameter.dtype for uninitialized parameter (#7749)
• Fix UpdateRule.use_fp32_update for uninitialized parameter (#7751)
• Avoid unload module call in PureNcclCommunicator (#7787)
• Fix TypeError in max_pooling_2d (#7789, thanks @ishanrai05!)
• Fix create_mnbn_model() bug (#7846)
• Fix backward of split_axis for intel64 when grad_ouputs contains None (#7931)
• Fix precision in F.max_pooling_2d (#7933)
• Fix backends.copyto from/to chainerx (#7934)
• Fix in-place update of arrays in Link.serialize and optimizers.Adam (#7941)
• Fix ChainerX non native deserialization (#7954)
• Fix multi-device loss scaling (#7968)

Documentation

• Fix static_graph docs code examples (#7884)
• Add 1.17 to supported NumPy versions (#7961)

Tests

• Fix test of chx.reshape (#7792)
• Revert #6754 (Fix Travis with macOS) (#7800)
• Fix a typo in test_communicator (#7822)
• Fix F.clipped_relu test for NumPy 1.17 (#7854)
• Switch current directory in Jenkins tests (#7856)
• Fix flaky TestHuberLoss (#7869)
• Configure tolerances of F.average_pooling_2d test (#7870)
• Refactor convolution functions tests (#7873)
• Relax tolerances in convolution link tests when using old cuDNN (#7878)
• Fix chainerx.logsumexp test tolerance (#7889)
• Relax tolerances in convolution function tests when using old cuDNN (#7895)
• Sample stable inputs in tests of group normalization (#7899)
• Relax float16 tolerances in ChainerX binary math tests (#7908)
• Avoid ndarray.data access and fix wrong test (#7913)
• Avoid unstable inputs in tests of decorrelated batch normalization (#7915)
• Avoid testing F.cast from negative floating-point to unsigned (#7944)
• Relax fp16 tolerances in TestContrastive (#7959)
• Relax fp16 tolerance in TrueDiv test (#7972)
• Fix tolerance in L.CRF1d test (#7977)