On 26/01/13 00:05, Jeff Squyres (jsquyres) wrote:
Here's what I have done:
1. Committed your patch to v1.6. George's patch was not committed to
v1.6.
Many thanks.
2. I opened https://svn.open-mpi.org/trac/ompi/ticket/3481 to track
your proposal of re-implementing/revamping the ARM ASM code.
On 24/01/13 22:12, Jeff Squyres (jsquyres) wrote:
On Jan 24, 2013, at 8:18 AM, Leif Lindholm wrote:
I tested this patch in v1.6 and v1.7 on my Pi, and it seems to work
just fine. "make check" passes all the ASM tests.
Just to be perfectly clear: it wouldn't on ARMv5 though
On 24/01/13 02:54, Jeff Squyres (jsquyres) wrote:
[snip] Basic point is - this is an insufficiently validated patch
referred to as "an ugly kludge" by the original author (Jon
Masters@Red Hat), who created it to be able to include it in the
Fedora ARMv5 port. I has previously provided suggestions
before?
>
> If ARM4 was working before, how important is it? I.e., would it be ok
> to accept George's stuff for 1.7.0, and then accept any
> improvements/reshuffle/etc. from you for 1.7.1?
>
>
>
> On Jan 21, 2013, at 12:15 PM, Leif Lindholm
> wrote:
>
>
Hi George,
Any chance of r27882 being reverted?
As I told the Fedora guys when that patch originally surfaced[1],
I'm not overly fond of
- copying source files around as part of the configure step
- having separate source files for ARMv6 and ARMv7, when those differences
should be easily separa
Correct.
> -Original Message-
> From: Jeff Squyres [mailto:jsquy...@cisco.com]
> Sent: 04 May 2012 14:49
> To: Leif Lindholm
> Cc: Evan Clinton; Peter Robinson; Open MPI Developers
> Subject: Re: [OMPI devel] [PATCH] Open MPI on ARMv5
>
> Ok. I'm parsing t
> > It causes no problems on/for the systems supported by trunk before
> the patch went in - it just means that in some situations it doesn't
> work on/for the systems enabled by that patch.
>
> I'm having trouble parsing that. :-)
Sorry :)
> Does this mean that we put in the patch, but it will
012 11:51
> To: Evan Clinton
> Cc: Peter Robinson; Leif Lindholm; Open MPI Developers
> Subject: Re: [OMPI devel] [PATCH] Open MPI on ARMv5
>
> What I need to know in the immediate future is: does this affect the
> new patch that we just put in the 1.6rc2 tarball?
>
> http://
=790343&name=build.log
Evan - how are you building this?
/
Leif
> -Original Message-
> From: devel-boun...@open-mpi.org [mailto:devel-boun...@open-mpi.org] On
> Behalf Of Leif Lindholm
> Sent: 30 April 2012 22:05
> To: Jeff Squyres
> Cc: Open MPI Developers;
know
if any further drops off 1.5 are planned?
/
Leif
From: Jeff Squyres [jsquy...@cisco.com]
Sent: 30 April 2012 21:19
To: Leif Lindholm
Cc: Evan Clinton; Open MPI Developers
Subject: Re: [OMPI devel] [PATCH] Open MPI on ARMv5
I'm good with it as long
Thanks,
I'm happy for this to go in - Jeff?
/
Leif
> -Original Message-
> From: nave.notn...@gmail.com [mailto:nave.notn...@gmail.com] On Behalf
> Of Evan Clinton
> Sent: 30 April 2012 05:12
> To: Leif Lindholm
> Cc: Open MPI Developers; Jeffrey Squyres
>
On 04/25/12 01:50, Evan Clinton wrote:
- The v5 code doesn't actually make use of the kuser helper barriers
in its versions of opal_atomic_cmpset_acq/rel.
Quote the documentation, __kuser_cmpxchg "already includes memory
barriers as needed," so the code using it shouldn't need anything
extra.
ttp://gcc.gnu.org/wiki/Atomic/GCCMM). However, the old __sync*
intrinsic were a bit heavyweight so until 4.7 is ubiquitous I prefer to keep
the inline asm, and now the kuser calls.
/
Leif
> -Original Message-
> From: Jeffrey Squyres [mailto:jsquy...@cisco.com]
> Sent: 1
For any archive readers or otherwise interested parties:
Apparently Ubuntu 11.10 onwards includes Open MPI 1.4.3 with an ARM patch
set different from mine. It was lacking a functional
opal_sys_timer_get_cycles() implementation.
There is an open bug being tracked through:
https://bugs.launchpad.ne
mpi.org [mailto:devel-boun...@open-mpi.org] On
> Behalf Of Jeffrey Squyres
> Sent: 28 February 2012 14:10
> To: Leif Lindholm
> Cc: Open MPI Developers; Ron Broberg
> Subject: Re: [OMPI devel] Compiling OpenMPI 1.5.4 on Debian 6 qemu
> arm6l
>
> Are there any changes we need to
help/topic/com.arm.doc.ddi0301h/Babhejba.html
> -Original Message-
> From: Jeffrey Squyres [mailto:jsquy...@cisco.com]
> Sent: 28 February 2012 12:30
> To: Ron Broberg; Open MPI Developers
> Cc: Leif Lindholm
> Subject: Re: [OMPI devel] Compiling OpenMPI 1.5.4 on De
In the Linaro 11.05 Linux metadistribution, and hence most likely in
Ubuntu 11.04, the GNU assembler no longer defaults to
-mimplicit-it=thumb, causing the build to fail when compiling on this
platform.
The attached trivial patch adds explicit IT instructions where required,
permitting a succ
> From: devel-boun...@open-mpi.org [mailto:devel-boun...@open-mpi.org] On
> Behalf Of Jeff Squyres
>
> On Jan 7, 2011, at 12:39 PM, Leif Lindholm wrote:
> > Could I submit it as an attachment instead?
>
> Please do. We usually use attachments here for exactly this
> -Original Message-
> From: devel-boun...@open-mpi.org [mailto:devel-boun...@open-mpi.org] On
> Behalf Of Jeff Squyres
>
> Many thanks for this contribution!
You're welcome :)
> A few points:
>
> 1. This is a lengthy contribution; it's a bit more than a "trivial" patch
> that we could in
Hi,
The following patch adds support for the ARMv7-A architecture to opal.
This includes current processors such as Cortex-A8 and Cortex-A9, as
well as upcoming Cortex-A5 and Cortex-A15.
It has been validated on Ubuntu Lucid (10.04) and Maverick (10.10),
although the former might require some pac
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