https://bugs.kde.org/show_bug.cgi?id=383010
Tom Hughes changed:
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CC||heide...@hotmail.com
--- Comment #119 from Tom Hug
https://bugs.kde.org/show_bug.cgi?id=383010
Tom Hughes changed:
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CC||satishs.kam...@gmail.com
--- Comment #118 from Tom
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #117 from Thiago Macieira ---
I stand corrected. Thanks for pointing out.
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--- Comment #116 from Paul Floyd ---
(In reply to Thiago Macieira from comment #115)
> (In reply to Paul Floyd from comment #110)
> > It’s everything. VEX isn’t my strong point, by my guess is that this would
> > be one of the biggest changes to Valgrin
https://bugs.kde.org/show_bug.cgi?id=383010
Thiago Macieira changed:
What|Removed |Added
CC||thi...@kde.org
--- Comment #114 from Thiago M
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #115 from Thiago Macieira ---
(In reply to Paul Floyd from comment #110)
> It’s everything. VEX isn’t my strong point, by my guess is that this would
> be one of the biggest changes to Valgrind for the last 15 years.
To be clear, it's the E
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #113 from Paul Floyd ---
(In reply to Olivier Huber from comment #112)
> It's unclear that there is a way to not execute the instruction. The line
> reported by valgrind is
The AVX512 instructions fall into this category
==28786== 2. The
https://bugs.kde.org/show_bug.cgi?id=383010
Olivier Huber changed:
What|Removed |Added
CC||oli.hu...@gmail.com
--- Comment #112 from Olivi
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #110 from Paul Floyd ---
(In reply to Petr from comment #104)
> If you use a distribution such as Gentoo with AVX-512 enabled globally you
> basically cannot use valgrind as it doesn't matter what valgrind advertises
> - all the code is alre
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #108 from Paul Floyd ---
(In reply to tanya_mine...@bk.ru from comment #106)
> Hi, this is Tanya.
>
> > What happened to the work Tanya did?
> The patches I did are attached to the bug report, but they must be really
> outdated now.
>
> >
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #109 from Paul Floyd ---
(In reply to tanya_mine...@bk.ru from comment #106)
> Hi, this is Tanya.
>
> > What happened to the work Tanya did?
> The patches I did are attached to the bug report, but they must be really
> outdated now.
>
> >
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #111 from Paul Floyd ---
(In reply to Petr from comment #105)
> BTW can anyone clarify the following:
>
> - What happened to the work Tanya did / what happened to Tanya?
> - If Intel wanted to sponsor AVX-512 support and the one who was
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #107 from Michał Dec ---
(In reply to Mark Wielaard from comment #103)
> Normally glibc uses ifuncs which check whether avx512 is available. Since
> valgrind doesn't advertise avx512 being available glibc should normally not
> use it. Do you
https://bugs.kde.org/show_bug.cgi?id=383010
tanya_mine...@bk.ru changed:
What|Removed |Added
CC||tanya_mine...@bk.ru
--- Comment #106 from
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #105 from Petr ---
BTW can anyone clarify the following:
- What happened to the work Tanya did / what happened to Tanya?
- If Intel wanted to sponsor AVX-512 support and the one who was working on
it lost interest or cannot do it anymor
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #103 from Mark Wielaard ---
(In reply to Michał Dec from comment #102)
> > You can compile with -mno-avx512f
>
> Would a minimum viable solution be to apply this only to glibc, and then
> reboot so that the whole system loads up the new gli
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #104 from Petr ---
If you use a distribution such as Gentoo with AVX-512 enabled globally you
basically cannot use valgrind as it doesn't matter what valgrind advertises -
all the code is already using AVX-512. And this of course also happen
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #102 from Michał Dec ---
> You can compile with -mno-avx512f
Would a minimum viable solution be to apply this only to glibc, and then reboot
so that the whole system loads up the new glibc?
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--- Comment #101 from Richard Jones ---
(In reply to Michał Dec from comment #99)
> I've just hit this bug and I can't properly work with AVX-512 instruction. I
> have to scp my entire projects to a machine that doesn't use AVX-512 at
> glibc level. Thi
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #100 from Paul Floyd ---
(In reply to Michał Dec from comment #99)
> I've just hit this bug and I can't properly work with AVX-512 instruction. I
> have to scp my entire projects to a machine that doesn't use AVX-512 at
> glibc level. This i
https://bugs.kde.org/show_bug.cgi?id=383010
Michał Dec changed:
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CC||moog...@gmail.com
--- Comment #99 from Michał Dec
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Mark Wielaard changed:
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CC||simon.fen...@imgtec.com
--- Comment #98 from Ma
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CC||pjfl...@wanadoo.fr
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--- Comment #97 from Tom
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Paul Floyd changed:
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CC||lefer...@gmail.com
--- Comment #96 from Paul Floyd
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he...@henrimenke.de changed:
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CC||he...@henrimenke.de
--- Comment #95 from h
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--- Comment #94 from Paul Floy
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Tom Hughes changed:
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CC||k...@chrisada.co.uk
--- Comment #93 from Tom Hughe
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Richard Jones changed:
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--- Comment #92 from Tom Hug
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Tom Hughes changed:
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CC||tus...@kazv.moe
--- Comment #91 from Tom Hughes -
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #90 from Tom Hughes ---
*** Bug 339416 has been marked as a duplicate of this bug. ***
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--- Comment #89 from Tom
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JojoR changed:
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--- Comment #88 from JojoR ---
Excel
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Mark Wielaard changed:
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CC||rincebr...@gmail.com
--- Comment #87 from Mark
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Mark Wielaard changed:
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CC||paola_...@libero.it
--- Comment #86 from Mark W
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Mark Wielaard changed:
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CC||ktstngubl...@bugfoo.com
--- Comment #85 from Ma
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Mark Wielaard changed:
What|Removed |Added
CC||m...@klomp.org
Alias|
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #84 from Patrick J. LoPresti ---
(In reply to Sam James from comment #79)
> Are Tanya's patches still pending review? Is there an outstanding known
> issue with them?
Similar question... What are the outstanding tasks here, and do they have
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Tom Hughes changed:
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CC||kobalicek.p...@gmail.com
--- Comment #83 from Tom
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Tom Hughes changed:
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CC||smuel...@chronox.de
--- Comment #82 from Tom Hughe
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Paul Floyd changed:
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CC||mfran...@pppl.gov
--- Comment #81 from Paul Floyd
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Bug Janitor Service changed:
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Priority|NOR |VHI
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--- Comment #80 from Paul Floy
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--- Comment #79 from Sam James ---
Are Tanya's patches still pending review? Is there an outstanding known issue
with them?
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Tom Hughes changed:
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--- Comment #78 from Tom Hughes
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Tom Hughes changed:
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CC||fchen0...@gmail.com
--- Comment #77 from Tom Hughe
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Tom Hughes changed:
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CC||arkang...@gmail.com
--- Comment #76 from Tom Hughe
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #75 from Tanya ---
Julian reported VPTESTMW and VPTESTMB instruction failures - these instructions
read data with incorrect granularity (64 and 32 bits instead of 16 and 8 bits,
respectively). The granularity has been specified in the master
https://bugs.kde.org/show_bug.cgi?id=383010
Tanya changed:
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Attachment #142995|0 |1
is obsolete||
---
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Tanya changed:
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is obsolete||
---
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melven changed:
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CC||Melven.Roehrig-Zoellner@DLR
|
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #71 from Tanya ---
Created attachment 145364
--> https://bugs.kde.org/attachment.cgi?id=145364&action=edit
Update for AVX-512 Valgrind regression tests to spot differences between mask
k0 and no mask
(In reply to Julian Seward from commen
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #70 from Julian Seward ---
Created attachment 145020
--> https://bugs.kde.org/attachment.cgi?id=145020&action=edit
Fix handling of no-mask reg-reg versions of VEXPAND* and VCOMPRESS*
Here's a bug fix for the VEXPAND and VCOMPRESS instruct
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #69 from Tanya ---
Created attachment 144938
--> https://bugs.kde.org/attachment.cgi?id=144938&action=edit
Fix copyright notices on the new AVX-512 files
Patches attached in comment #58, comment #59, comment #60 and comment #61 had
incorr
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #68 from Julian Seward ---
Created attachment 144930
--> https://bugs.kde.org/attachment.cgi?id=144930&action=edit
valgrind-avx512-rollup-fixes-2021Dec29.diff
Rollup fixes to be applied on top of (after) the patches in comments 58, 59 and
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #67 from Julian Seward ---
Created attachment 144910
--> https://bugs.kde.org/attachment.cgi?id=144910&action=edit
Demonstrates misbehaving `vmovdqu8 %ymm7, (%r9){%k5}`
I've been testing the patches from comment 58, 59, 60 against the tru
https://bugs.kde.org/show_bug.cgi?id=383010
Tanya changed:
What|Removed |Added
CC||mgsext...@gmail.com
--- Comment #66 from Tanya ---
***
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Sam James changed:
What|Removed |Added
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--- Comment #65 from Patrick J. LoPresti ---
(In reply to Tanya from comment #64)
>
> If you would make the patch into a new branch - would you be interested in
> its internal commit history, perhaps for git blame?
I am not a Valgrind maintainer; I ha
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #64 from Tanya ---
(In reply to Patrick J. LoPresti from comment #63)
> Could someone please work on getting these changes into mainline? Or at
> least make this a branch in the git repository? (Is there anything I can do
> to help?)
>
> AV
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #63 from Patrick J. LoPresti ---
Could someone please work on getting these changes into mainline? Or at least
make this a branch in the git repository? (Is there anything I can do to help?)
AVX-512 is now a "must have" for us.
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https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #62 from Tanya ---
Attached an updated version of the AVX-512 patch for KNL and SkyLake. It does
not contain any principal changes comparing to the previous version, just bug
fixes.
It is based on Valgrind 3.18 (GIT master from Oct 22, commi
https://bugs.kde.org/show_bug.cgi?id=383010
Tanya changed:
What|Removed |Added
Attachment #135974|0 |1
is obsolete||
Att
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Tanya changed:
What|Removed |Added
Attachment #140027|0 |1
is obsolete||
---
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Tanya changed:
What|Removed |Added
Attachment #140026|0 |1
is obsolete||
---
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Tanya changed:
What|Removed |Added
Attachment #140025|0 |1
is obsolete||
---
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #57 from Tanya ---
Attached an updated version of the AVX-512 patch for KNL and SkyLake. It is
based on Valgrind 3.18 (GIT master from Jul, 13, commit
61307ee83121aa5f0b57a12a80e90fc2f414380a)
The major improvements are:
- Fixes for runtime
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #56 from Tanya ---
Created attachment 140028
--> https://bugs.kde.org/attachment.cgi?id=140028&action=edit
Version 2: Part 4 of AVX-512 patch - (optional) Generator of AVX-512 .c files
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Tanya changed:
What|Removed |Added
Attachment #135973|0 |1
is obsolete||
---
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Tanya changed:
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Attachment #135972|0 |1
is obsolete||
---
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Tanya changed:
What|Removed |Added
Attachment #135971|0 |1
is obsolete||
---
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Mark Wielaard changed:
What|Removed |Added
CC||shaveer.bajpeyi@mail.utoron
|
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #51 from Tanya ---
Hello,
Attached updated AVX-512 patch for KNL and SkyLake.
It is based on the GIT master from Feb. 20 (commit
1c9a0bf58a47e855e6e5bf78a30bcee0af835804)
Attached files
~~
- AVX-512_KNL_SKX_p1_main.patch - Main
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #50 from Tanya ---
Created attachment 135974
--> https://bugs.kde.org/attachment.cgi?id=135974&action=edit
Part 4 of AVX-512 patch - (optional) Generator of AVX-512 .c files
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Tanya changed:
What|Removed |Added
Attachment #109005|0 |1
is obsolete||
---
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--- Comment #48 from Tanya ---
Created attachment 135972
--> https://bugs.kde.org/attachment.cgi?id=135972&action=edit
Part 2 of AVX-512 patch - auto-generated files
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Tanya changed:
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Attachment #128799|0 |1
is obsolete||
Att
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Tom Hughes changed:
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CC||qoman...@gmail.com
--- Comment #46 from Tom Hughes
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Tom Hughes changed:
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CC||mingfei@ucloud.cn
--- Comment #45 from Tom Hug
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Alexandra Hajkova changed:
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Attachment #129528|0 |1
is obsolete|
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--- Comment #43 from Alexandra Hajkova ---
My git repo:
https://github.com/sasshka/valgrind/commit/2a9d9c2a5e6021cd1b928e03aabb9e493cde5cdd
I tested the patch on Knights Landing. I had to rename gdbserver xml files for
gdbserver tests to pass - they use
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Alexandra Hajkova changed:
What|Removed |Added
Attachment #129525|0 |1
is obsolete|
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Alexandra Hajkova changed:
What|Removed |Added
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is obsolete|
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--- Comment #40 from Alexandra Hajkova ---
Created attachment 129522
--> https://bugs.kde.org/attachment.cgi?id=129522&action=edit
patch
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Tom Hughes changed:
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CC||mr...@protonmail.com
--- Comment #39 from Tom Hugh
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #38 from Tanya ---
(In reply to Alexandra Hajkova from comment #37)
> Created attachment 128856 [details]
> patch
>
> Hello Tanya,
>
> I slighly modified your patch to make it appliable (removed trailing
> whitespaces, etc.) and used git f
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #37 from Alexandra Hajkova ---
Created attachment 128856
--> https://bugs.kde.org/attachment.cgi?id=128856&action=edit
patch
Hello Tanya,
I slighly modified your patch to make it appliable (removed trailing
whitespaces, etc.) and used gi
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Alexandra Hajkova changed:
What|Removed |Added
CC||ahajk...@redhat.com
--- Comment #36 from Al
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #35 from Patrick J. LoPresti ---
(In reply to Tanya from comment #34)
Nice to see work resuming on this.
Valgrind is almost useless for us at this point, because AVX-512 CPUs are now
ubiquitous and the performance benefits are too large to
https://bugs.kde.org/show_bug.cgi?id=383010
Tanya changed:
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Attachment #111693|0 |1
is obsolete||
Att
https://bugs.kde.org/show_bug.cgi?id=383010
Tom Hughes changed:
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CC||bvanass...@acm.org
--- Comment #33 from Tom Hughes
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Tom Hughes changed:
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CC||aymaneltems...@hotmail.com
--- Comment #32 from To
https://bugs.kde.org/show_bug.cgi?id=383010
Jacek Tomaka changed:
What|Removed |Added
Ever confirmed|0 |1
Status|UNCONFIRMED
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--- Comment #30 from Hou, Ao-ping ---
(In reply to Tanya from comment #27)
> > Hi, Tanya,
> >
> > Thank you so much.
> > Once I get new patch, I will try it for basic operations in AVX-512 double
> > precision.
> >
> > Best Regards
> >
> > Elliot
>
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #29 from Hou, Ao-ping ---
(In reply to Tanya from comment #27)
> > Hi, Tanya,
> >
> > Thank you so much.
> > Once I get new patch, I will try it for basic operations in AVX-512 double
> > precision.
> >
> > Best Regards
> >
> > Elliot
>
https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #28 from Chris Samuel ---
Hi there,
We hit the illegal instruction message on Skylake (6140) CPUs running valgrind
on programs linked against OpenMPI 3.0.0; the cause being that with our GCC 5.5
and higher installs memset() causes the VPXOR
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Chris Samuel changed:
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