Re: [OMPI users] Unable to include mpich library

2010-07-02 Thread Lisandro Dalcin
On 28 June 2010 04:26, Reuti wrote: > > I saw makefiles, where the compilers (i.e. MPI wrappers) were only used for > compiling the source to object files. Later on these were still linked with > `gcc` or `ld`. Hence the MPI library must be accessed also for the linker > step by `mpicc` instead of

[OMPI users] OpenMPI error MPI_ERR_TRUNCATE

2010-07-02 Thread Jack Bryan
Dear All: With boost MPI, I trying to ask some worker nodes to send some message to the single master node. I am using OpenMPI 1.3.4. I use an array recvArray[row][column] to receive the message, which is a C++ class that contain int, member functions. But I got an error of terminate called aft

Re: [OMPI users] is OpenMPI 1.4 thread-safe?

2010-07-02 Thread Jeff Squyres
What would software be without conflicting documentation? :-) The first statement is true; THREAD_MULTIPLE was designed in from the beginning. But it has never been much of a priority -- simply not enough people are asking for it. As of 1.4.1, the following is true (from the README -- I'll g

[OMPI users] Open MPI runtime parameter tuning on a custom cluster

2010-07-02 Thread Simone Pellegrini
Dear Open MPI community, I would like to know from expert system administrator if they know any "standardized" way for tuning Open MPI runtime parameters. I need to tune the performance on a custom cluster so I would like to have some hints in order to proceed in the correct direction. thank

[OMPI users] [openib] segfault when using openib btl

2010-07-02 Thread Eloi Gaudry
Hi, I'm observing a random segmentation fault during an internode parallel computation involving the openib btl and OpenMPI-1.4.2 (the same issue can be observed with OpenMPI-1.3.3). mpirun (Open MPI) 1.4.2 Report bugs to http://www.open-mpi.org/community/help/ [pbn08:02624] *** Process