Bug 904886

Summary:	sci-libs/pytorch-2.0.0 fails with "no input file" (cuda USE flag related / Python version related ?)
Product:	Gentoo Linux	Reporter:	Adrien Dessemond <admnd>
Component:	Current packages	Assignee:	Tupone Alfredo <tupone>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	build.log.xz eclass-debug.log environment.xz emerge --info

Description Adrien Dessemond 2023-04-23 14:48:01 UTC

Just after copying a bunch of Python stuff, the build fails with the following message:

2023-04-23 10:42:07,023 root INFO x86_64-pc-linux-gnu-gcc -shared -flto=auto -O3 -pipe -march=native -fomit-frame-pointer -fopt-info-vec -fcf-protection=return -flto=auto -ffat-lto-objects build/temp.linux-x86_64-cpython-310/torch/csrc/stub_with_flatbuffer.o -Llib -L/usr/lib64 -L/usr/lib64 -ltorch_python -o build/lib.linux-x86_64-cpython-310/torch/_C_flatbuffer.cpython-310-x86_64-linux-gnu.so -g -Wl,-rpath,$ORIGIN/lib
2023-04-23 10:42:07,074 root INFO building 'nvfuser._C' extension
2023-04-23 10:42:07,074 root INFO x86_64-pc-linux-gnu-gcc -shared -flto=auto -O3 -pipe -march=native -fomit-frame-pointer -fopt-info-vec -fcf-protection=return -flto=auto -ffat-lto-objects -L/usr/lib64 -o build/lib.linux-x86_64-cpython-310/nvfuser/_C.cpython-310-x86_64-linux-gnu.so
x86_64-pc-linux-gnu-gcc: fatal error: no input files
compilation terminated.
error: command '/usr/bin/x86_64-pc-linux-gnu-gcc' failed with exit code 1

Full log attached. Seems related to having USE="cuda" as on a machine with an AMD GPU (no "cuda" USE flag set) I do not see that failure.

Comment 1 Adrien Dessemond 2023-04-23 14:52:41 UTC

Created attachment 860662 [details]
build.log.xz

Comment 2 Adrien Dessemond 2023-04-23 14:54:01 UTC

Created attachment 860663 [details]
eclass-debug.log

Comment 3 Adrien Dessemond 2023-04-23 14:54:34 UTC

Created attachment 860664 [details]
environment.xz

Comment 4 Adrien Dessemond 2023-04-23 14:55:18 UTC

Created attachment 860665 [details]
emerge --info

Comment 5 Tupone Alfredo gentoo-dev

2023-04-23 17:12:48 UTC

The configuration of caffe2 is taken from /var/lib/caffe2/ and for bug report to pytorch is good to have.

I guess that in this case the NVFUSER build was enabled by default, just by selecting cuda

I'm going to disable explicity nvfuser, until some poor guy take care of the cuda part of pytorch.

Comment 6 Larry the Git Cow gentoo-dev

2023-04-23 17:25:30 UTC

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2e4e05aca4cca79904e30cdbc9019043a5261262

commit 2e4e05aca4cca79904e30cdbc9019043a5261262
Author:     Alfredo Tupone <tupone@gentoo.org>
AuthorDate: 2023-04-23 17:24:37 +0000
Commit:     Alfredo Tupone <tupone@gentoo.org>
CommitDate: 2023-04-23 17:25:05 +0000

    sci-libs/caffe2: disable nvfuser
    
    Closes: https://bugs.gentoo.org/904886
    Signed-off-by: Alfredo Tupone <tupone@gentoo.org>

 sci-libs/caffe2/{caffe2-2.0.0-r1.ebuild => caffe2-2.0.0-r2.ebuild} | 1 +
 1 file changed, 1 insertion(+)