[mpich-discuss] Can't get MPICH2 to work on a MAC - Need Help

[Dave Goodell]

Ron,

It looks like you are trying to mix MPICH2 and OpenMPI.  MPICH2's  
fortran libraries are named libmpich, libfmpich, and libmpichf90,  
while OpenMPI uses libmpi and libmpi_f77 (etc...).  How did you  
compile your application?  You should use the compiler wrappers (mpicc/ 
mpif77/etc) that were installed by the "make install" step.

Mac OS X comes with a version of OpenMPI installed in the /usr  
directory (not /usr/local) by default.  Make sure that you didn't  
accidentally compile with those compiler wrappers instead.

Also, if you installed MPICH2 to /usr/local and then installed a copy  
of OpenMPI to /usr/local, you will probably have problems.  As far as  
I know you cannot install both MPI implementations to the same prefix  
because of the name conflicts for the compiler wrappers and mpiexec.

-Dave

On Aug 14, 2009, at 4:54 PM, Ron Pape wrote:

> Hi.
>
> We have an 8 core MAC Pro 4.1 with an OS X Version 10.57 operating  
> system with the following specifications:
>
>
>   Processor Name:        Quad-Core Intel Xeon
>   Processor Speed:        2.26 GHz
>   Number Of Processors:           2
>   Total Number Of Cores:          8
>   L2 Cache (per core):   256 KB
>   L3 Cache (per processor):       8 MB
>   Memory:         16 GB 1066 MHz DDR3
>   Processor Interconnect Speed: 5.86 GT/s
>
> We are using the FDS (Fire Dynamics Simulator) computational fluid  
> dynamics code developed by NIST, and we need to run in the parallel  
> processing mode using MPICH2.  We have successfully done this using  
> a less powerful Windows PC, and we can run multiple grids in the  
> serial mode using the MAC Pro.  However, when we try to run in the  
> parallel mode on the MAC, we get the following error message:
>
> Command:
> fds1:FDS rpape$ mpiexec -n 4 ./fds5_mpi_osx_64 cone.fds
>
> Error Message:
> dyld: Library not loaded: /usr/local/lib/libmpi_f77.0.dylib
>   Referenced from: /Users/rpape/FDS/./fds5_mpi_osx_64
>   Reason: no suitable image found.  Did find:
>             /usr/local/lib/libmpi_f77.0.dylib: mach-o, but wrong  
> architecture
>             /usr/local/lib/libmpi_f77.0.dylib: mach-o, but wrong  
> architecture
>
> Here we tried a Windows version of libmpi_f77.0.dylib, because we  
> could not find one in the MAC architecture.  Can we obtain a version  
> of this in the MAC architecture?
>
> We have tried to configure as in the following, without success:
>
> configure --enable-f90 --enable-f77 --enable-sharedlibs=osx-gcc -- 
> with-pm=mpd --enable-fast --prefix=/usr/local CC=/opt/local/bin/gcc- 
> mp-4.5 FC=/opt/local/bin/gfortran-mp-4.5 \ | tee configure.log
>
> We would appreciate any help you can provide.
>
> Thank you very much,
>
> Ron Pape