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Subject: Re: [OMPI users] WRF, OpenMPI and PGI 7.2
From: Gerry Creager (gerry.creager_at_[hidden])
Date: 2009-02-19 18:22:46


Elvedin Trnjanin wrote:
> That would be one way it dies, but we kept getting errors during
> compilation without the compilation process exiting which is arguably
> worse than the behavior you saw.
>
> OpenMPI's mpicc doesn't support the -cc flag so it just passes it to
> pgcc, which doesn't support it either. The easy way to fix it is
> recompiling OpenMPI with gcc and pgf
>
> ./configure CC=gcc CXX=g++ F77=pgf... FC=pgf... ...
>
> After that, edit the WRF configure.wrf and remove every instance of
> -cc=${SOMEVAR} I think there should be two, but I don't have access to
> mine at the moment to tell you the exact names.

I'll try that in a few minutes

Thanks!

gerry

> Gerry Creager wrote:
>> Elvedin,
>>
>> Yeah, I thought about that after finding a reference to this in the
>> archives, so I redirected the path to MPI toward the gnu-compiled
>> version. It died in THIS manner:
>> make[3]: Entering directory `/home/gerry/WRFv3/WRFV3/external/RSL_LITE'
>> mpicc -cc=gcc -DFSEEKO64_OK -w -O3 -DDM_PARALLEL -c c_code.c
>> pgcc-Error-Unknown switch: -cc=gcc
>> make[3]: [c_code.o] Error 1 (ignored)
>>
>> Methinks the wrf configuration script and make file will need some
>> tweeks.
>>
>> Interesting thing: I have another system (alas, with mpich) where it
>> compiles just fine. I'm trying to sort this out, as on 2 systems,
>> with openMPI, it does odd dances before dying.
>>
>> I'm still trying things. I've gotta get this up both for MY research
>> and to support other users.
>>
>> Thanks, Gerry
>>
>> Elvedin Trnjanin wrote:
>>> WRF almost requires that you use gcc for the C/C++ part and the PGI
>>> Fortran compilers, if you choose that option. I'd suggest compiling
>>> OpenMPI in the same way as that has resolved our various issues. Have
>>> you tried that with the same result?
>>>
>>> Gerry Creager wrote:
>>>> Howdy,
>>>>
>>>> I'm new to this list. I've done a little review but likely missed
>>>> something specific to what I'm asking. I'll keep looking but need
>>>> to resolve this soon.
>>>>
>>>> I'm running a Rocks cluster (centos 5), with PGI 7.2-3 compilers,
>>>> Myricom MX2 hardware and drivers, and OpenMPI1.3
>>>>
>>>> I installed the Myricom roll which has OpenMPI compiled with gcc. I
>>>> recently compiled the openmpi code w/ PGI.
>>>>
>>>> I've the MPICH_F90 pointing to the right place, and we're looking
>>>> for the right includes and libs by means of LD_LIBRARY_PATH, etc.
>>>>
>>>> When I tried to run, I got the following error:
>>>> make[3]: Entering directory `/home/gerry/WRFv3/WRFV3/external/RSL_LITE'
>>>> mpicc -DFSEEKO64_OK -w -O3 -DDM_PARALLEL -c c_code.c
>>>> PGC/x86-64 Linux 7.2-3: compilation completed with warnings
>>>> mpicc -DFSEEKO64_OK -w -O3 -DDM_PARALLEL -c buf_for_proc.c
>>>> PGC-S-0036-Syntax error: Recovery attempted by inserting identifier
>>>> .Z0000 before '(' (/share/apps/openmpi-1.3-pgi/include/mpi.h: 889)
>>>> PGC-S-0082-Function returning array not allowed
>>>> (/share/apps/openmpi-1.3-pgi/include/mpi.h: 889)
>>>> PGC-S-0043-Redefinition of symbol, MPI_Comm
>>>> (/share/apps/openmpi-1.3-pgi/include/mpi.h: 903)
>>>> PGC/x86-64 Linux 7.2-3: compilation completed with severe errors
>>>> make[3]: [buf_for_proc.o] Error 2 (ignored)
>>>>
>>>> Note that I had modified the makefile to use PGI in place of gcc,
>>>> and thus, the PGI-compiled openMPI.
>>>>
>>>> Thanks, Gerry
>>>
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>>
>
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-- 
Gerry Creager -- gerry.creager_at_[hidden]
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843