adding DNN tutorial

[wjcunningham7]

• [ ] I have added the tests to cover my changes.
• [ ] I have updated the documentation and CHANGELOG accordingly.
• [ ] I have read the CONTRIBUTING document.

[codecov[bot]]

Codecov Report

Merging #818 (7b18506) into develop (c7fea4e) will decrease coverage by 4.27%. The diff coverage is n/a.

:exclamation: Current head 7b18506 differs from pull request most recent head 93fcda8. Consider uploading reports for the commit 93fcda8 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #818      +/-   ##
===========================================
- Coverage    75.82%   71.54%   -4.28%     
===========================================
  Files          140      140              
  Lines         5476     5476              
  Branches       142      142              
===========================================
- Hits          4152     3918     -234     
- Misses        1205     1439     +234     
  Partials       119      119              

Flag	Coverage Δ		*Carryforward flag
Dispatcher	85.23% <ø> (ø)		Carriedforward from ff7d0af
Functional_Tests	?
SDK	80.18% <ø> (ø)		Carriedforward from ff7d0af
UI_Frontend	47.49% <ø> (ø)

*This pull request uses carry forward flags. Click here to find out more.

[FyzHsn]

Tutorial DB:

dnn_tutorial_20220923.sqlite.zip

[FyzHsn]

1. Follow up issues to investigate - Sometimes, gives the following error even though nothing was changed in the code (usually after a period of inactivity):

Node fetch_and_validate_data failed: Traceback (most recent call last): File "/Users/faiyaz/Code/covalent/covalent_dispatcher/_core/execution.py", line 353, in _run_task output, stdout, stderr = await execute_callable() File "/Users/faiyaz/Code/covalent/covalent/executor/base.py", line 387, in execute result = await self.run(function, args, kwargs, task_metadata) File "/Users/faiyaz/Code/covalent/covalent/executor/executor_plugins/dask.py", line 112, in run result, worker_stdout, worker_stderr = await dask_client.gather(future) File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/distributed/client.py", line 2037, in _gather raise exception.with_traceback(traceback) File "/Users/faiyaz/Code/covalent/covalent/executor/executor_plugins/dask.py", line 60, in dask_wrapper output = fn(*args, **kwargs) File "/Users/faiyaz/Code/covalent/covalent/executor/base.py", line 67, in wrapper_fn retval = cb_fn(*cb_args, **cb_kwargs) File "/Users/faiyaz/Code/covalent/covalent/_file_transfer/strategies/s3_strategy.py", line 125, in callable s3.download_file(bucket_name, from_filepath, to_filepath) File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/boto3/s3/inject.py", line 190, in download_file return transfer.download_file( File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/boto3/s3/transfer.py", line 320, in download_file future.result() File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/s3transfer/futures.py", line 103, in result return self._coordinator.result() File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/s3transfer/futures.py", line 266, in result raise self._exception File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/s3transfer/tasks.py", line 269, in _main self._submit(transfer_future=transfer_future, **kwargs) File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/s3transfer/download.py", line 354, in _submit response = client.head_object( File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/botocore/client.py", line 514, in _api_call return self._make_api_call(operation_name, kwargs) File "/Users/faiyaz/opt/anaconda3/envs/dnn-tutorial/lib/python3.8/site-packages/botocore/client.py", line 934, in _make_api_call raise error_class(parsed_response, operation_name) botocore.exceptions.ClientError: An error occurred (400) when calling the HeadObject operation: Bad Request

The solution in this case is to stop the covalent server and restart it. Everything works after that. Why does this happen?

[FyzHsn]

Database:

dnn_tutorial_20220923.sqlite.zip