Implement NcclTestJobStatusRetrievalStrategy and add corresponding tests

src/cloudai/__init__.py

@@ -49,6 +49,7 @@
 from .schema.test_template.jax_toolbox.slurm_install_strategy import JaxToolboxSlurmInstallStrategy
 from .schema.test_template.jax_toolbox.template import JaxToolbox
 from .schema.test_template.nccl_test.grading_strategy import NcclTestGradingStrategy
+from .schema.test_template.nccl_test.job_status_retrieval_strategy import NcclTestJobStatusRetrievalStrategy
 from .schema.test_template.nccl_test.report_generation_strategy import NcclTestReportGenerationStrategy
 from .schema.test_template.nccl_test.slurm_command_gen_strategy import NcclTestSlurmCommandGenStrategy
 from .schema.test_template.nccl_test.slurm_install_strategy import NcclTestSlurmInstallStrategy
@@ -105,10 +106,11 @@
 )
 Registry().add_strategy(JobIdRetrievalStrategy, [StandaloneSystem], [Sleep], StandaloneJobIdRetrievalStrategy)
 Registry().add_strategy(JobStatusRetrievalStrategy, [StandaloneSystem], [Sleep], DefaultJobStatusRetrievalStrategy)
+Registry().add_strategy(JobStatusRetrievalStrategy, [SlurmSystem], [NcclTest], NcclTestJobStatusRetrievalStrategy)
 Registry().add_strategy(
     JobStatusRetrievalStrategy,
     [SlurmSystem],
-    [ChakraReplay, JaxToolbox, NcclTest, UCCTest, NeMoLauncher],
+    [ChakraReplay, JaxToolbox, UCCTest, NeMoLauncher],
     DefaultJobStatusRetrievalStrategy,
 )
 Registry().add_strategy(CommandGenStrategy, [SlurmSystem], [UCCTest], UCCTestSlurmCommandGenStrategy)

src/cloudai/schema/test_template/nccl_test/job_status_retrieval_strategy.py

@@ -0,0 +1,60 @@
+# Copyright (c) 2024, NVIDIA CORPORATION.  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.
+
+import os
+
+from cloudai._core.job_status_result import JobStatusResult
+from cloudai._core.job_status_retrieval_strategy import JobStatusRetrievalStrategy
+
+
+class NcclTestJobStatusRetrievalStrategy(JobStatusRetrievalStrategy):
+    """Strategy to retrieve job status for NCCL tests by checking the contents of 'stdout.txt'."""
+
+    def get_job_status(self, output_path: str) -> JobStatusResult:
+        """
+        Determine the job status by examining 'stdout.txt' in the output directory.
+
+        Args:
+            output_path (str): Path to the directory containing 'stdout.txt'.
+
+        Returns:
+            JobStatusResult: The result containing the job status and an optional error message.
+        """
+        stdout_path = os.path.join(output_path, "stdout.txt")
+        if os.path.isfile(stdout_path):
+            with open(stdout_path, "r") as file:
+                content = file.read()
+                if "# Out of bounds values" in content and "# Avg bus bandwidth" in content:
+                    return JobStatusResult(is_successful=True)
+                missing_indicators = []
+                if "# Out of bounds values" not in content:
+                    missing_indicators.append("'# Out of bounds values'")
+                if "# Avg bus bandwidth" not in content:
+                    missing_indicators.append("'# Avg bus bandwidth'")
+                error_message = (
+                    f"Missing success indicators in stdout.txt: {', '.join(missing_indicators)}. "
+                    "These keywords are expected to be present in stdout.txt, usually towards the end of the file. "
+                    "Please ensure the NCCL test ran to completion. You can run the generated sbatch script manually "
+                    "and check if stdout.txt is created and contains the expected keywords."
+                )
+                return JobStatusResult(is_successful=False, error_message=error_message)
+        return JobStatusResult(
+            is_successful=False,
+            error_message=(
+                "stdout.txt file not found in the specified output directory. "
+                "This file is expected to be created as a result of the NCCL test run. "
+                "Please ensure the NCCL test was executed properly and that stdout.txt is generated. "
+                "You can run the generated NCCL test command manually and verify the creation of stdout.txt."
+            ),
+        )

tests/test_job_status_retrieval_strategy.py

@@ -0,0 +1,55 @@
+from pathlib import Path
+
+from cloudai.schema.test_template.nccl_test.job_status_retrieval_strategy import NcclTestJobStatusRetrievalStrategy
+
+
+class TestNcclTestJobStatusRetrievalStrategy:
+    """Tests for the NcclTestJobStatusRetrievalStrategy class."""
+
+    def setup_method(self) -> None:
+        """Setup method for initializing NcclTestJobStatusRetrievalStrategy."""
+        self.js = NcclTestJobStatusRetrievalStrategy()
+
+    def test_no_stdout_file(self, tmp_path: Path) -> None:
+        """Test that job status is False when no stdout.txt file is present."""
+        result = self.js.get_job_status(str(tmp_path))
+        assert not result.is_successful
+        assert result.error_message == (
+            "stdout.txt file not found in the specified output directory. "
+            "This file is expected to be created as a result of the NCCL test run. "
+            "Please ensure the NCCL test was executed properly and that stdout.txt is generated. "
+            "You can run the generated NCCL test command manually and verify the creation of stdout.txt."
+        )
+
+    def test_successful_job(self, tmp_path: Path) -> None:
+        """Test that job status is True when stdout.txt contains success indicators."""
+        stdout_file = tmp_path / "stdout.txt"
+        stdout_content = """
+        # Some initialization output
+        # More output
+        # Out of bounds values : 0 OK
+        # Avg bus bandwidth    : 100.00
+        # Some final output
+        """
+        stdout_file.write_text(stdout_content)
+        result = self.js.get_job_status(str(tmp_path))
+        assert result.is_successful
+        assert result.error_message == ""
+
+    def test_failed_job(self, tmp_path: Path) -> None:
+        """Test that job status is False when stdout.txt does not contain success indicators."""
+        stdout_file = tmp_path / "stdout.txt"
+        stdout_content = """
+        # Some initialization output
+        # More output
+        # Some final output without success indicators
+        """
+        stdout_file.write_text(stdout_content)
+        result = self.js.get_job_status(str(tmp_path))
+        assert not result.is_successful
+        assert result.error_message == (
+            "Missing success indicators in stdout.txt: '# Out of bounds values', '# Avg bus bandwidth'. "
+            "These keywords are expected to be present in stdout.txt, usually towards the end of the file. "
+            "Please ensure the NCCL test ran to completion. You can run the generated sbatch script manually "
+            "and check if stdout.txt is created and contains the expected keywords."
+        )