[fix] Ensure we check deepspeed/sharded in multinode DDP (#6297)

* Ensure we check deepspeed/sharded in multinode

* Add CHANGELOG.md

* Add CHANGELOG.md

* Drop mock, use actual multi-gpu node

Author: SeanNaren

CHANGELOG.md

@@ -32,6 +32,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 - Fixed `SingleTPU` calling `all_gather` ([#6296](https://github.com/PyTorchLightning/pytorch-lightning/pull/6296))
 
+
+- Ensure we check deepspeed/sharded in multinode DDP ([#6297](https://github.com/PyTorchLightning/pytorch-lightning/pull/6297)
+
+
 ## [1.2.2] - 2021-03-02
 
 ### Added

pytorch_lightning/profiler/profilers.py

@@ -13,24 +13,19 @@
 # limitations under the License.
 """Profiler to check if there are any bottlenecks in your code."""
 import cProfile
-import inspect
 import io
 import os
 import pstats
 import time
 from abc import ABC, abstractmethod
 from collections import defaultdict
 from contextlib import contextmanager
-from typing import List, Optional, Union
+from typing import Optional, Union
 
 import numpy as np
-import torch
 
 from pytorch_lightning import _logger as log
-from pytorch_lightning.utilities import rank_zero_only
 from pytorch_lightning.utilities.cloud_io import get_filesystem
-from pytorch_lightning.utilities.distributed import rank_zero_warn
-from pytorch_lightning.utilities.exceptions import MisconfigurationException
 
 
 class BaseProfiler(ABC):