Re: [OMPI users] Sharing (not copying) data with OpenMPI?

Maybe you meant to search for OpenMP instead of Open-MPI. You can achieve something close to what you want by using OpenMP for on-node parallelism and MPI for inter-node communication. -Brian On Mon, Apr 16, 2012 at 11:02 AM, George Bosilca wrote: > No currently there is

Re: [OMPI users] open MPI please recommend a debugger for open MPI

I find that using mpirun to launch multiple instance of a serial debugger is fairly usable (but not perfect) for jobs with fewer than about four processes. A description of how to do this is here: http://www.open-mpi.org/faq/?category=debugging The biggest drawbacks to this approach are that a)

Re: [OMPI users] MPI_File_write_ordered does not truncate files

>>> MPI_File_open( MPI_COMM_WORLD, "foo.txt", >>> MPI_MODE_CREATE | MPI_MODE_WRONLY, >>> MPI_INFO_NULL, ); > > > Since the file was opened with MPI_MODE_CREATE, shouldn't it have been > truncated so the prior contents were removed? I think that's the root > of the

Re: [OMPI users] MPI_File_write_ordered does not truncate files

>> Can you confirm - are you -really- using 1.1.2??? >> >> You might consider updating to something more recent, like 1.3.0 or >>at least 1.2.8. It would be interesting to know if you see the same >> problem. > Also, if you could include a short program that reproduces the > problem, that would

[OMPI users] MPI_File_write_ordered does not truncate files

Hi, When I use MPI_File_write_ordered to overwrite an existing file, the new file is not truncated to the appropriate size. For example, if I first create a new file and write "aa" from two nodes, the file contains "". Then I close the file, and compute for a while. Later, I reopen the file

[OMPI users] runtime warnings with MPI_File_write_ordered

Hi, Sorry about my previous message, it was sent before I'd finished composing it. Whenever I use MPI_File_write_ordered(), all but one process send the following message to stderr. ADIOI_GEN_DELETE (line 22): **io No such file or directory I have read

[OMPI users] runtime warnings with MPI_File_write_ordered

Hi, I get a warning