On 19 August 2013 16:08, William Stein <[email protected]> wrote:
> Hi,
>
> For anybody reading this thread, a reminder about how to use the
> systemwide ATLAS (at least on Ubuntu 12.04 LTS).  Just do this before
> building Sage:
>
>          apt-get install libatlas3gf-base liblapack-dev
>          cd /usr/lib/
>          ln -s libatlas.so.3gf libatlas.so
>          ln -s libcblas.so.3gf libcblas.so
>          ln -s libf77blas.so.3gf libf77blas.so
>          export SAGE_ATLAS_LIB="/usr/lib/"

Thanks, I have done that and will try it out when 5.12.beta2 comes out.

John

>
> I'm personally done with building ATLAS...

I was building Volker's replacement spkg, but it was still doing the
lengthy tuning.

John

>
> William
>
> On Mon, Aug 19, 2013 at 7:52 AM, John Cremona <[email protected]> wrote:
>> I am worried about that message "Architecture configured as  HAMMER
>> (32)" since wikipedia tells me that Hammer was the name of an AMD
>> processor released in 2003.  The actual cpuinfo is
>>
>> vendor_id : AuthenticAMD
>> cpu family : 21
>> model : 2
>> model name : AMD Opteron(tm) Processor 6380
>> stepping : 0
>> microcode : 0x6000822
>> cpu MHz : 2500.158
>> cache size : 2048 KB
>> physical id : 3
>> siblings : 16
>> core id : 7
>> cpu cores : 8
>> (etc)
>>
>> John
>>
>> On 19 August 2013 15:19, John Cremona <[email protected]> wrote:
>>> On 19 August 2013 15:05, John Cremona <[email protected]> wrote:
>>>> On 19 August 2013 14:43, Volker Braun <[email protected]> wrote:
>>>>> On Monday, August 19, 2013 2:33:52 PM UTC+1, John Cremona wrote:
>>>>>>
>>>>>> I don't know how to extract that from the munged version (which is
>>>>>> still being written to).
>>>>>
>>>>>
>>>>> $SAGE_ROOT/logs/pkgs/atlas-3.10.1.p3.log
>>>>>
>>>>
>>>> Here's mine (so far):   
>>>> http://fermat.warwick.ac.uk/~jec/atlas-3.10.1.p3.log
>>>>
>>>
>>> The differences I see near the top of this log file compared with the
>>> 5.11 build using atlas-3.8.4.p1 are
>>>
>>> [old log]
>>> Assembly configured as GAS_x8664 (2)
>>> Vector ISA Extension configured as  SSE3 (2,28)
>>> Architecture configured as  HAMMER (24)
>>> Clock rate configured as 2500Mhz
>>> Maximum number of threads configured as  64
>>>
>>> [new log]
>>> Assembly configured as GAS_x8664 (2)
>>> Vector ISA Extension configured as  AVXMAC (3,504)
>>> Architecture configured as  HAMMER (32)
>>> Clock rate configured as 2500Mhz
>>> Maximum number of threads configured as  64
>>>
>>> so the "Vector ISA Extension" is different.  A little earlier the old
>>> version has
>>>
>>> < ERROR: enum fam=0, chip=0, mach=4198176
>>> < make[6]: *** [atlas_run] Error 100
>>>
>>> while the new has
>>>
>>>> ERROR: enum fam=6, chip=8, mach=0
>>>> make[6]: *** [atlas_run] Error 44
>>>
>>> John
>>
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>
>
>
> --
> William Stein
> Professor of Mathematics
> University of Washington
> http://wstein.org
>
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