tensorflow--tensorflow/third_party/xla/build_tools/ci

This folder contains scripts and commands executed by GitHub actions in OpenXLA, TensorFlow and JAX OSS repos. The GitHub actions replaced KokoroPresubmit-tensorflow* workflows. They run under Copybara_XLA{Presubmit,Submit} presubmit chip (category) at Google internally. The tests run on several target OS configurations/GCP containers such as Linux x86 with GPU or Linux ARM64. They assure that XLA/Tensor Flow/JAX compiles and runs on those platforms. The tests uses released OSS c++ clang compiler which has some differences in supporting c++ standards compared Google's internal version.

How it works

Repo specific GitHub actions call build.py --build="build_name". E.g. OpenXLA uses https://github.com/openxla/xla/blob/main/.github/workflows/ci.yml

The build here is a set of shell script commands executing the test targets or doing compile only testing. Each GitHub action call translates into compile only test:

1. dryrun bazel build --nobuild ... test_targets
2. actual compile bazel build ... test_targets
3. analyse results bazel analyze-profile ...

or compile and run test commands:

1. dry run bazel build --nobuild ... test_targets
2. actual test bazel test ... test_targets
3. analyse results bazel analyze-profile profile.json.gz

Checking in changes to build.py regenerates golden_commands.txt which lets us see how commands are changing. golden_commands.txt are not called as part of the continuous integration process.

When does it run?

The GitHub actions are automatically called as part of Google presubmit. The GitHub actions are automatically called on GitHub PR commit if the committer is part of OpenXLA GitHub org. Committer which are not part of OpenXLA org need an approval from OpenXLA org member to run the actions.