resurface lost ddp info message

[awaelchli]

What does this PR do?

The following message disappeared from Lightning:

----------------------------------------------------------------------------------------------------
distributed_backend=ddp
All DDP processes registered. Starting ddp with 2 processes
----------------------------------------------------------------------------------------------------

The condition for printing it was mistakenly if not torch.distributed.is_initialized, which would never be true since right before that we initialized the backend.

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[codecov]

Codecov Report

Merging #8111 (7f52f71) into master (d4d5418) will decrease coverage by 0%.
The diff coverage is 75%.

@@          Coverage Diff           @@
##           master   #8111   +/-   ##
======================================
- Coverage      93%     93%   -0%     
======================================
  Files         209     211    +2     
  Lines       13412   13408    -4     
======================================
- Hits        12439   12409   -30     
- Misses        973     999   +26     

[ananthsub]

thanks for the quick fix!

[pep8speaks]

Hello @awaelchli! Thanks for updating this PR.

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2021-06-25 13:47:33 UTC

[awaelchli]

@Borda the printing with tuple you suggested wasn't working because it would print everything on one line. I made use of f-strings now.

[Borda]

@Borda the printing with tuple you suggested wasn't working because it would print everything on one line. I made use of f-strings now.

so just add line end, for example os.linesep