GCC 13: OpenMP offloading to Intel MIC has been removed (was: Remove support for Intel MIC offloading)

GCC 13: OpenMP offloading to Intel MIC has been removed (was: Remove support for Intel MIC offloading)

[Thomas Schwinge]

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Hi!

On 2022-10-20T13:34:41+0200, Jakub Jelinek via Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
> we'll need to update the offloading wiki

I'll look into that.  I assume we just remove any "Intel MIC" text,
unless historically or otherwise still relevant, of course.

Likewise I'll look through open PRs to see if any can be closed now.

And, I've pushed to wwwdocs master branch
commit c59054dae1319cd21e8198733a63d60111681d1b
"GCC 13: OpenMP offloading to Intel MIC has been removed", see attached,
borrowing both the position in the notes and wording from the GCC 12
deprecation.


Now, looking forward to the day when someone introduces support for (new)
Intel GPU offloading!  (See initial/inconclusive discussion in thread at
<https://inbox.sourceware.org/gcc/87v933nlhn.fsf@dem-tschwing-1.ger.mentorg.com/>
"GCC/OpenMP offloading for Intel GPUs?".


Grüße
 Thomas


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From c59054dae1319cd21e8198733a63d60111681d1b Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@codesourcery.com>
Date: Fri, 4 Nov 2022 10:18:38 +0100
Subject: [PATCH] GCC 13: OpenMP offloading to Intel MIC has been removed

---
 htdocs/gcc-13/changes.html | 1 +
 1 file changed, 1 insertion(+)

diff --git a/htdocs/gcc-13/changes.html b/htdocs/gcc-13/changes.html
index f5fa97e5..8b4bf7f3 100644
--- a/htdocs/gcc-13/changes.html
+++ b/htdocs/gcc-13/changes.html
@@ -28,6 +28,7 @@ a work-in-progress.</p>
 <!-- .................................................................. -->
 <h2>Caveats</h2>
 <ul>
+    <li>OpenMP offloading to Intel MIC has been removed.</li>
     <li>The support for the <code>cr16-elf</code>, <code>tilegx*-linux</code>, <code>tilepro*-linux</code>,
       <code>hppa[12]*-*-hpux10*</code>, <code>hppa[12]*-*-hpux11*</code>
       and <code>m32c-rtems</code> configurations has been removed.</li>
-- 
2.35.1

Re: GCC 13: OpenMP offloading to Intel MIC has been removed (was: Remove support for Intel MIC offloading)

[Jakub Jelinek]

On Fri, Nov 04, 2022 at 11:05:13AM +0100, Thomas Schwinge wrote:
> Hi!
> 
> On 2022-10-20T13:34:41+0200, Jakub Jelinek via Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
> > we'll need to update the offloading wiki
> 
> I'll look into that.  I assume we just remove any "Intel MIC" text,
> unless historically or otherwise still relevant, of course.

Well, e.g. at the start
GCC 5 and later support two offloading configurations:

    OpenMP to Intel MIC targets (upcoming Intel Xeon Phi products codenamed KNL) as well as MIC emulation on host. 
should be kept, and in the GCC 13 entry say that the support has been
removed.  Or perhaps better split the GCC 5 entry to say that
GCC 5 and later support OpenACC to NVidia PTX and another entry
that GCC 5 to GCC 12 support OpenMP to Intel MIC.

As there is just one wiki for all the GCC versions, I think we
should keep the MIC stuff in there for now but add notes to the various
spots that it isn't there for GCC 13 anymore (repeat the info).
And when GCC 12.5 is released and branch 12 closes we can drop it
except from the first part of the wiki.

	Jakub