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Re^5: Does openmpi-1.4.1 fit FireFly

Alex Granovsky
gran@classic.chem.msu.su


Jim,

current betas of Firefly v. 8.0.0 supports MVAPICH2

Best regards,
Alex

On Wed Feb 8 '12 0:53am, Jim Kress wrote
----------------------------------------
>Alex,

>What about MVAPICH2?  I noticed there are no downloadable executables linked with MVAPICH2, only MVAPICH.  Is there a particular reason?  

>Jim

>On Tue Feb 7 '12 3:07pm, Alex Granovsky wrote
>---------------------------------------------
>>Dear Jim,

>>Yes this is the key problem with OpenMPI.

>>Best wishes,
>>Alex

>>On Sun Feb 5 '12 10:59pm, Jim Kress wrote
>>-----------------------------------------
>>>Is this why you prefer we use MVAPICH or Intel MPI?

>>>Jim

>>>On Tue Nov 15 '11 2:30pm, Alex Granovsky wrote
>>>----------------------------------------------
>>>>Hi,

>>>>you are trying to use 64-bit OpenMPI libraries with Firefly.
>>>>You need to use 32-bit libs. You can find how to create them
>>>>on this Forum. Nevertheless, please take in mind the following:

>>>>1. There were changes in ABI of OpenMPI 1.4 as compared
>>>>with 1.2 series. This broke compatibility with executables
>>>>compiled with OpenMPI 1.2.x, such as Firefly 7.1.G and thus
>>>>Firefly version 7.1.G is not compatible with OpenMPI 1.4.x
>>>>To use Firefly with OpenMPI 7.1.G you need current beta of
>>>>Firefly.

>>>>2. Anyway, I do not recommend to use OpenMPI with Firefly at all as  
>>>>the implementation of collective operations in OpenMPI is not safe
>>>>and lacks proper synchronization. Thus, we cannot guarantee stable
>>>>execution of Firefly with OpenMPI. Though the workarounds for these
>>>>problems exist both in OpenMPI (you can find some in the OpenMPI
>>>>mailing lists) and in Firefly code, their use decrease overall
>>>>performance of Firefly.

>>>>Kind regards,
>>>>Alex Granovsky
>>>>
>>>>
>>>>
>>>>
>>>>On Tue Nov 15 '11 1:20pm, Eldar Mamin wrote
>>>>-------------------------------------------
>>>>>Dear all

>>>>>does openmpi-1.4.1
>>>>>(~$ which mpirun
>>>>>/unicluster/opt/OpenFOAM/1.7/ThirdParty-1.7.1/platforms/linux64Gcc/openmpi-1.4.1/bin/mpirun)

>>>>>fit the appropriate version of firefly -"Firefly version 7.1.G download links, Linux OpenMPI v. 1.2.x, dynamically linked NPTL-based version"

>>>>>I got the following error

>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>./firefly: error while loading shared libraries: libmpi.so.0: wrong ELF class: ELFCLASS64
>>>>>


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