[gentoo-user] OT: GCC 5 Offloading

[james <wireless@tampabay.rr.com>]

Fernando Rodriguez <frodriguez.developer <at> outlook.com> writes:

> Do you know of any plans to enable offloading on the gentoo toolchain?

NO, but I'm sure some devs are keenly aware of this feature in gcc-5.


> I was able to build the offloading compiler using crossdev with a few hacks 
> and wrote an ebuild for Intel's simulator[2]. I will work on enabling the  
> host compiler tomorrow and may open a feature request and post patches 
> once I get it working. The changes needed to enable it on the host are 
> pretty trivial.

Sorry Fernando, I just now saw this thread on an old thread. I think that
'sys-cluster/ceph' is where I'd like to test your spin on the gcc-5.
Ceph has RDMA (RoCE) in the 0.94 branch (in portage). You are definately
ahead of me on practical gcc-5 experiments with offloading and other
new features.

You did not list your second reference. Where I can I get/git your
compiler and some brief suggestions on taking it for a test drive.

I'm not much interested in the Intel simulator, atm. I like to test on
old gear running gentoo:: borking is no big deal, if it happens.
Other codes keen to test gcc-5 (offloading) on are Apache-mesos and
Apache-spark and mesos-distcc.

Also, per this doc [1] you can get your own gentoo overlay to put
things up for wider experimentation, if you like.

[1] https://wiki.gentoo.org/wiki/Project:Overlays/Dev_Guide


Very cool, what you have done,
James