From: Joachim Hein (j.hein_at_ed.ac.uk)
Date: Mon Apr 20 2009 - 13:22:11 CDT
Peter,
how do you build the charm++ for this? Might be a miss understanding on
my part, but so far I didn't spot architecture files for the Cray-XT
when using PGI. The ones in arch/mpi-crayxt (charm 6.1 source) are just
littered with references to gcc.
Thanks
Joachim
Peter Freddolino wrote:
> You should be able to build using PGI if you add -DMISSING_mm_cvtsd_f64
> to your build flags. The current version of the PGI compiler doesn't
> fully support SSE2; we've already reported this as a bug to them, and it
> will be fixed in the next release of their compiler.
>
> I've never compared the speed of PGI vs. gcc, certainly not on that
> platform. The frequent comment that gcc hurts performance is in
> comparison to icc on x86-related architectures.
>
> Best,
> Peter
>
> BIN ZHANG wrote:
>> Hi, Joachim:
>>
>> I will definitely try this. But I heard before that gcc might affect the
>> efficiency of NAMD significantly, did you notice this?
>>
>> Another thing that might worth mention is that, I can compile NAMD2.6
>> with PGI on the same machine without any problem.
>>
>> Thanks,
>> Bin
>>
>>
>> On Apr 20, 2009, at 4:05 AM, Joachim Hein wrote:
>>
>>>> zhngbn_at_gmail.com wrote:
>>>>> Dear all:
>>>>>
>>>>> I was trying to compile the NAMD2.7b1 version on a CRAY-XT3
>>>>> supercomputer, and get the following error that I do not understand.
>>>>>
>>>>> PGCC-W-0277-Cannot inline function _mm_set_pd - data type mismatch
>>>>> (/opt/pgi/7.0.7/linux86-64/7.0-7/include/CC/iostream: 882)
>>>>> PGCC-W-0277-Cannot inline function _mm_set_pd - data type mismatch
>>>>> (/opt/pgi/7.0.7/linux86-64/7.0-7/include/CC/iostream: 883)
>>>>> PGCC-W-0277-Cannot inline function _mm_set_pd - data type mismatch
>>>>> (/opt/pgi/7.0.7/linux86-64/7.0-7/include/CC/iostream: 884)
>>>>>
>>>>> Does this look familiar to you guys? Any idea what would be the
>>>>> problem?
>>>>>
>>>>> Thanks a lot.
>>>>> Bin
>>> Hi Bin,
>>>
>>> try using the gcc compiles on a Cray XT.
>>>
>>> module swap PrgEnv-pgi PrgEnv-gnu
>>>
>>> You need to do this for all: charm++, FFTW, TCL and namd
>>>
>>> I have no problems building XT executables with gcc and have not
>>> received any problem reports for the ones I build (knock on wood).
>>>
>>> Hope this helps.
>>>
>>> Best wishes
>>> Joachim
>>>
>>>
>>>
>>> --
>>> The University of Edinburgh is a charitable body, registered in
>>> Scotland, with registration number SC005336.
>>>
-- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
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