Re: [OMPI users] how to make a process start and then join a MPI group

Perhaps I am doing something wrong. The childrens' calls to MPI_Intercomm_merge never return. Here's the chronology (with 2 children): parent calls MPI_Init parent calls MPI_Comm_spawn child calls MPI_Init child calls MPI_Init parent call to MPI_Comm_spawn returns (long pause inserted) parent

Re: [OMPI users] Want to build a static openmpi with both myrinet and tcp

Add the following flags to your configure line. --disable-dlopen --disable-shared --enable-static --with-mx=/some/path/ to/mx/lib Even if everything is compiled static, the selection logic (as well as the mca parameters --mca btl=tcp,mx,self...) will continue working as usual. Last,

[OMPI users] Want to build a static openmpi with both myrinet and tcp

We now have a cluster with myrinet and another cluster with tcp. I want to build a static OPENMPI that will detect if there is myrinet on the cluster and use that, if myrinet is not available, run with tcp. I see the --enable-mca-static option but am confused as to how to use it for what I want

Re: [OMPI users] How can I start building apps in Open MPI? any docs?

For beginners, it is worth picking up some books. I have used Using MPI - 2nd Edition: Portable Parallel Programming with the Message Passing Interface by Gropp, Lusk, and Skjellum. The reference for MPI is available online at http://www.mpi-forum.org/docs/docs.html, but hard copies are nice to

Re: [OMPI users] How can I start building apps in Open MPI? any docs?

In addition to what Pasha said, keep in mind that Open MPI implements the standardized MPI API. There are many books and web tutorials available about MPI. There's a few at NCSA, for example: http://ci-tutor.ncsa.uiuc.edu/browse.php?category=-1=MPI=all=Filter On Jul 27, 2008, at

Re: [OMPI users] C or C++ or Fortran?

Hi, language choice depends by your problem to solved. C and Fortran are in general more quick than C++. 2008/7/27 Amir Saad > Which one is better for parallel programs? and depends on what? > Thank you > Amir > > > ___ > users

Re: [OMPI users] How can I start building apps in Open MPI? any docs?

Amir Saad wrote: I'll be starting some parallel programs in Open MPI and I would like to find a guide or any docs of Open MPI, any suggestions please? I couldn't find any docs on the website, how do I know about the APIs or the functions that I should use? Here are videos about OpenMPI/MPI -

[OMPI users] C or C++ or Fortran?

Which one is better for parallel programs? and depends on what? Thank you Amir