[MITgcm-devel] [MITgcm-cvs] MITgcm/tools/build_options CVS Commit

[David Ferreira]

Hi Hong and others,
I've modified the linux_ia64_ifort+mpi_ice_nas optfile to match what 
I've used
to run the testreport (not a lot to adjust in fact). Feel free to 
complain if you need
some adjustment.
Remains to pick a name: Oliver tells me pleiades is not a "ia64" stuff.
david

PS: and I've removed Patrick's optile for pleiades



On 4/2/10 6:06 PM, Hong Zhang wrote:
> David Ferreira wrote:
>> Hi,
>> I looked into the linux_ia64_ifort+mpi_ice_nas optfile and compared 
>> it to the one I used
>> for testreport and they are very similar, mine being a bit more 
>> standard. The only significant
>> difference is in the optimization :
>> FOPTIM='-O2 -align -ip -xSSE4.2' in mine
>> against
>> FOPTIM='-O3'     in linux_ia64_ifort+mpi_ice_nas
>>
>> The -O2 is because I didn't see much a difference in speed compared 
>> to -O3 and
>> it is safer. The -xSSE4.2 is specific to the normal_N queue and 
>> should be replaced by
>> -xSSE4.1 for the normal queue (and it does speed up things in my case).
>>
>> I can replace linux_ia64_ifort+mpi_ice_nas by my version, or we can 
>> work something out ?
>> What do people think?
>> david
>>
> Hi David
> thanks for initiating the fixing.
> Notice each cpu has 1GB ram (for nomal queue) and program could easily 
> reach that threshold.
> So Patrick's check-in with two sets of FFLAGS/CFLAGS could be added.
> (http://mitgcm.org/viewvc/MITgcm/MITgcm/tools/build_options/linux_x86_64_ifort_pleiades_n_nas?revision=1.1&view=markup&sortby=date) 
>
> hong
>
>
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