Thanks Reuti for the sample. I have the latest Xcode available on the Apple dev center; Xcode 4 probably?
I think that the reason why nothing happens is because the code runs via MPICH2; tried to launch mpicc with the -echo flag and i see in the output -I/opt/local/include/mpich2 -L/opt/local/lib -lpmpich -lmpich -lopa -lmpl -lpthread which makes me think that i am using MPICH2; I just need to figure out how to remove it now...found a dir in opt/local/include that is called mpich2 but I am not sure if is enough to just delete that dir. When I have installed OpenMPI I followed the instructions on this site: https://sites.google.com/site/dwhipp/tutorials/installing-open-mpi-on-mac-os-x While for MPICH2 I've followed this one: http://www.mpitutorial.com/installing-mpich2/ Most likely I've put them on top of each other and messed up both On Nov 9, 2012, at 2:32 AM, Reuti wrote: > Am 09.11.2012 um 08:47 schrieb shiny knight: > >> Thanks for your replies. >> >> I use Snow Leopard, running ompi_info returns an error (command not found). > > I'm on this version too. Which version of Xcode do you use - "Xcode 3.2.6 and > iOS SDK 4.3"? Attached is a small file which I can compile with the mentioned > command. > > $ mpicc demo.m -o demo -O0 -ObjC -framework Foundation -framework CoreLocation > $ mpiexec -np 2 ./demo > > >> I was looking for installers and I remember that I have installed MPICH2 if >> I recall correctly (I didn't knew about openMPI until today), so I have >> mpicc installed. >> >> Should I remove MPICH2 and install OpenMPI? > > Yes. > > Different MPI implementations have to be installed in different locations and > the paths set accordingly. Also note, that an application compiled with Open > MPI can't be started with MPICH2 `mpiexec` and vice versa. Well, yes - it > could be started but it will only run in serial in all instances like you can > start any application with `mpiexec`. As `mpicc` is only a wrapper to provide > additonal paths arguments to -I/-L/-l, all usual options apply. In principle > MPI applications can also be compiled by a plain gcc, but then you have to > take care of all the necessary libraries on your own. > > -- Reuti > > <demo.m>_______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
