[Benchmarking-Py] Ensuring default max workspace size >= 8GB

Author: DEKHTIARJonathan

.gitignore

@@ -145,4 +145,4 @@ variables.data*
 /*.sh
 
 # Benchmark Result Dir
-/benchmark_data
+/benchmark_data*

tftrt/benchmarking-python/benchmark_args.py

@@ -195,7 +195,8 @@ def __init__(self):
         self._parser.add_argument(
             "--max_workspace_size",
             type=int,
-            default=DEFAULT_TRT_MAX_WORKSPACE_SIZE_BYTES,
+            # Ensuring default of minimum 8GB
+            default=max(1 << 33, DEFAULT_TRT_MAX_WORKSPACE_SIZE_BYTES),
             help="The maximum GPU temporary memory which the TRT engine can "
             "use at execution time."
         )