[mpich-discuss] [EXTERNAL] Re: Modifying ssh calls for MPICH2

[Gustavo Correa]

On Jan 17, 2012, at 6:49 PM, Reuti wrote:

> Am 18.01.2012 um 00:38 schrieb Kekatpure, Rohan Deodatta (-EXP):
> 
>>> which mpicc
>> 
>> /usr/bin/mpicc
>> 
>>> mpicc -v
>> 
>> Using built-in specs.
>> Target: i686-apple-darwin10
>> Configured with: /var/tmp/gcc/gcc-5664~105/src/configure --disable-checking --enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin10 --program-prefix=i686-apple-darwin10- --host=x86_64-apple-darwin10 --target=i686-apple-darwin10 --with-gxx-include-dir=/include/c++/4.2.1
>> Thread model: posix
>> gcc version 4.2.1 (Apple Inc. build 5664)
> 
> Looks like Open MPI is installed by default.
> 
> ompi_info

Hi Rohan, Reuti

For what it is worth, my Mac laptop w/ OS-X 10.6.8 Snow Leopard has
OpenMPI 1.2.8 [a rather old version!] installed by default in /usr/bin.
It seems to have been compiled by Apple, with gcc and g++, but no Fortran support.
You may need to set your environment variables [PATH at least] to point to 
your mpich2 build instead.

I hope this helps,
Gus Correa

> 
> You should succeed then to build it with Open MPI though:
> 
> mpicc -o mpihello mpihello.c
> 
> Where did you compile MPICH2 and installed it to? Usually I use something like --prefix=$HOME/local/mpich2-1.4.1p1 to ./configure and adjust the PATH to include $HOME/local/mpich2-1.4.1p1/bin
> 
> In Germany it's getting night - I'm off then.
> 
> -- Reuti
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