cubin files not cleaned up after linking

[ye-luo]

Bugzilla Link	50336
Resolution	FIXED
Resolved on	Oct 11, 2021 20:29
Version	unspecified
OS	Linux
Blocks	#51489
CC	@jhuber6,@jdoerfert
Fixed by commit(s)	01d59c0 0dd4f00

Extended Description

tons of cubin files constantly fill /tmp

...
-rw-rw-r-- 1 yeluo yeluo 39056 May 13 15:22 RPAJastrow-6b9e81.cubin
-rw-rw-r-- 1 yeluo yeluo 39056 May 13 15:22 eeI_JastrowBuilder-f4a8b1.cubin
...

I think these files are created when object files are unbundled for linking but never got removed from disk up completion.

[jhuber6]

I believe I fixed the problem in https://reviews.llvm.org/D107668, can you verify? Not sure how to make a test for this.

What was happening was two-phase builds were going through the offload-bundler tool to create a fat-binary. The NVPTX assembler creates a .cubin file that is used, but its name isn't present in the list of files seen by -ccc-print-phases so it was not being removed automatically.

[jdoerfert]

Do we need to rebase this to 13?

[jhuber6]

It wasn't originally listed as a release blocker. It's definitely a bug and should be probably be fixed in the 13.0 release. I'll put it as a blocker.

[ye-luo]

The commit 01d59c0
on main does resolve this issue. I'm happy that I no more needs to constantly cleaning the /tmp on my CI machine.

It is definitely super helpful to get release 13 fixed as well.
Reopen until it gets applied on 13 release branch.

[tstellar]

Merged: 0dd4f00

[tstellar]

mentioned in issue #51489