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August 2017

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Subject:
From:
Orion Poplawski <[log in to unmask]>
Reply To:
Orion Poplawski <[log in to unmask]>
Date:
Mon, 28 Aug 2017 09:43:00 -0600
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On 08/28/2017 09:10 AM, Pat Riehecky wrote:
> 
> 
> On 08/28/2017 10:06 AM, Orion Poplawski wrote:
>> On 08/16/2017 11:36 AM, Pat Riehecky wrote:
>>> Scientific Linux 7.4 BETA x86_64
>>>
>>> These are notes of the "BETA" release for Scientific Linux 7.4 .
>> Are the SRPMS available?  In particular I'm looking for
>> atlas-3.10.1-12.el7.  There seems to be an issue with AVX instructions in the
>> main package.  Haven't yet had a chance to compare with RHEL.
>>
> 
> I'm syncing up RC1 right now, so the repodata may not be perfect, but it
> should be up at:
> 
> http://ftp.scientificlinux.org/linux/scientific/7x/SRPMS/vendor/atlas-3.10.1-12.el7.src.rpm
> 
> 
> And the debuginfo should be up at:
> 
> http://ftp.scientificlinux.org/linux/scientific/7x/archive/debuginfo/atlas-debuginfo-3.10.1-12.el7.i686.rpm
> 
> http://ftp.scientificlinux.org/linux/scientific/7x/archive/debuginfo/atlas-debuginfo-3.10.1-12.el7.x86_64.rpm
> 
> 
> 
> Let me know if you find anything odd.  We'll leave an extra bit of time on the
> RC based on your query.
> 
> Pat

So it does appear to be an issue with the SL7.4 rpm.  It has:

Dump of assembler code for function cblas_dgemm:
...
=> 0x00007ffff1543249 <+41>:    vmovsd %xmm0,0x40(%rsp)
   0x00007ffff154324f <+47>:    vmovsd %xmm1,0x38(%rsp)

While the RHEL7.4 rpm has:

Dump of assembler code for function cblas_dgemm:
...
   0x00007ffff14e651f <+31>:    movsd  %xmm0,0x38(%rsp)
   0x00007ffff14e6525 <+37>:    movsd  %xmm1,0x30(%rsp)

vmovsd appears to be an AVX instruction.


Simply rebuilding the package on my local machine fixed the issue, so not sure
what went wrong with the SL7.4 build.


-- 
Orion Poplawski
Technical Manager                          720-772-5637
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       [log in to unmask]
Boulder, CO 80301                   http://www.nwra.com

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