[TRTLLM-4886][infra]Try another timeout opt to exit test thread directly instead of gracefully (#4341)

* Try another timeout opt to kill test thread

Signed-off-by: qqiao <qqiao@nvidia.com>

* Return true when try to delete non-existing result file

Signed-off-by: qqiao <qqiao@nvidia.com>

* quick test for the result file

Signed-off-by: qqiao <qqiao@nvidia.com>

* Change back the global timeout setting

Signed-off-by: qqiao <qqiao@nvidia.com>

* Try to kill test in internal pytest

Signed-off-by: qqiao <qqiao@nvidia.com>

---------

Signed-off-by: qqiao <qqiao@nvidia.com>

jenkins/L0_Test.groovy

@@ -1013,6 +1013,7 @@ def runLLMTestlistOnPlatformImpl(pipeline, platform, testList, config=VANILLA_CO
             extraInternalEnv,
             "pytest",
             "-v",
+            "--timeout-method=thread",
             "--apply-test-list-correction",
             "--splitting-algorithm least_duration",
             "--timeout=${pytestTestTimeout}",
@@ -1122,7 +1123,7 @@ def runLLMTestlistOnPlatform(pipeline, platform, testList, config=VANILLA_CONFIG
         sh """
             ls -all ${stageName}/
             if ! grep -q '<testcase' ${stageName}/results.xml; then
-                rm ${stageName}/results.xml
+                rm ${stageName}/results.xml || true
             fi
         """
         def llmPath = sh (script: "realpath .", returnStdout: true).trim()

tests/integration/defs/test_unittests.py

@@ -122,6 +122,7 @@ def test_unittests_v2(llm_root, llm_venv, case: str, output_dir):
         ignore_opt,
         "-v",
         "--timeout=1600",
+        "--timeout-method=thread",
     ]
 
     if dry_run: