Benchmarks: Add Example - Add pytorch-bert-large as the model benchmark example. (#30)

* add bert-large as the model benchmark example

* add more arguments.

* address comments.

* delete duplicated file.
Co-authored-by: Guoshuai Zhao <guzhao@microsoft.com>

examples/benchmarks/pytorch_bert_large.py

+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
+"""Model benchmark example for bert-large."""
+
+from superbench.benchmarks import Platform, Framework, BenchmarkRegistry, BenchmarkContext
+from superbench.common.utils import logger
+
+if __name__ == '__main__':
+    # Create context for bert-large benchmark and run it for 120 * 2 seconds.
+    context = BenchmarkContext(
+        'bert-large',
+        Platform.CUDA,
+        parameters='--batch_size=1 --duration=120 --seq_len=512 --precision=float32 --run_count=2',
+        framework=Framework.PYTORCH
+    )
+
+    if BenchmarkRegistry.check_parameters(context):
+        benchmark = BenchmarkRegistry.launch_benchmark(context)
+        if benchmark:
+            logger.info(
+                'benchmark: {}, return code: {}, result: {}'.format(
+                    benchmark.name, benchmark.return_code, benchmark.result
+                )
+            )
+    else:
+        logger.error('bert-large benchmark does not exist or context/parameters are invalid.')