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Re: [PATCH 0/4] OpenMP 4.0 offloading to Intel MIC
- From: Kirill Yukhin <kirill dot yukhin at gmail dot com>
- To: Tobias Burnus <tobias dot burnus at physik dot fu-berlin dot de>
- Cc: gcc at gnu dot org
- Date: Thu, 13 Nov 2014 18:44:29 +0300
- Subject: Re: [PATCH 0/4] OpenMP 4.0 offloading to Intel MIC
- Authentication-results: sourceware.org; auth=none
- References: <20141113141433 dot GA37650 at msticlxl57 dot ims dot intel dot com> <20141113151548 dot GA4368 at physik dot fu-berlin dot de>
On 13 Nov 16:15, Tobias Burnus wrote:
> Kirill Yukhin wrote:
> > Support of OpenMP 4.0 offloading to future Xeon Phi was
> > fully checked in to main trunk.
> Thanks. If I understood it correctly:
> * GCC 5 supports code generation for Xeon Phi (Knights Landing, KNL)
> * KNL (the hardware) is not yet available [mid 2015?]
Yes, but I don't know the date.
> * liboffloadmic supports offloading in an emulation mode (executed on
> the host) but does not (yet) support offloading to KNL; i.e. one
> would need an updated version of it, once one gets hold of the
> actual hardware.
Yes, it supports emulation mode. Also, current scheme is the same as
for KNC (however we have no code generator in GCC main trunk for KNC).
We're going to keep liboffloadmic up-to-date.
> * The current hardware (Xeon Phi Knights Corner, KNC) is and will not
> be supported by GCC.
Currently GCC main trunk doesn't support KNC code gen.
> * Details for building GCC for offloading and running code on an
> accelerator is at https://gcc.gnu.org/wiki/Offloading
> Question: Is the latter up to date - and the item above correct?
> BTW: you could update gcc.gnu.org ->news and gcc.gnu.org/gcc-5/changes.html
Thanks, I'll post a patch.