Split daily CI using 2 level matrix (#28773)

* update / add new workflow files

* Add comment

* Use env.NUM_SLICES

* use scripts

* use scripts

* use scripts

* Fix

* using one script

* Fix

* remove unused file

* update

* fail-fast: false

* remove unused file

* fix

* fix

* use matrix

* inputs

* style

* update

* fix

* fix

* no model name

* add doc

* allow args

* style

* pass argument

---------

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

utils/notification_service.py

@@ -931,9 +931,9 @@ if __name__ == "__main__":
 
     arguments = sys.argv[1:][0]
     try:
-        models = ast.literal_eval(arguments)
+        folder_slices = ast.literal_eval(arguments)
         # Need to change from elements like `models/bert` to `models_bert` (the ones used as artifact names).
-        models = [x.replace("models/", "models_") for x in models]
+        models = [x.replace("models/", "models_") for folders in folder_slices for x in folders]
     except SyntaxError:
         Message.error_out(title, ci_title)
         raise ValueError("Errored out.")

utils/split_model_tests.py

@@ -0,0 +1,65 @@
+# Copyright 2024 The HuggingFace Team. All rights reserved.
+#
+# 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
+#
+#     http://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.
+
+"""
+This script is used to get the list of folders under `tests/models` and split the list into `NUM_SLICES` splits.
+The main use case is a GitHub Actions workflow file calling this script to get the (nested) list of folders allowing it
+to split the list of jobs to run into multiple slices each containing a smaller number of jobs. This way, we can bypass
+the maximum of 256 jobs in a matrix.
+
+See the `setup` and `run_tests_gpu` jobs defined in the workflow file `.github/workflows/self-scheduled.yml` for more
+details.
+
+Usage:
+
+This script is required to be run under `tests` folder of `transformers` root directory.
+
+Assume we are under `transformers` root directory:
+```bash
+cd tests
+python ../utils/split_model_tests.py --num_splits 64
+```
+"""
+
+import argparse
+import os
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--num_splits",
+        type=int,
+        default=1,
+        help="the number of splits into which the (flat) list of folders will be split.",
+    )
+    args = parser.parse_args()
+
+    tests = os.getcwd()
+    model_tests = os.listdir(os.path.join(tests, "models"))
+    d1 = sorted(filter(os.path.isdir, os.listdir(tests)))
+    d2 = sorted(filter(os.path.isdir, [f"models/{x}" for x in model_tests]))
+    d1.remove("models")
+    d = d2 + d1
+
+    num_jobs = len(d)
+    num_jobs_per_splits = num_jobs // args.num_splits
+
+    model_splits = []
+    end = 0
+    for idx in range(args.num_splits):
+        start = end
+        end = start + num_jobs_per_splits + (1 if idx < num_jobs % args.num_splits else 0)
+        model_splits.append(d[start:end])
+    print(model_splits)