[OMPI users] Onesided + derived datatypes

Hi List, I have a MPI program which uses one sided communication with derived datatypes (MPI_Type_create_indexed_block). I developed the code with MPICH2 and unfortunately didn't thought about trying it out with OpenMPI. Now that I'm "porting" the Application to OpenMPI I'm facing some problems.

Re: [OMPI users] Problem with openmpi and infiniband

Hi Biagio Lucini wrote: Hello, I am new to this list, where I hope to find a solution for a problem that I have been having for quite a longtime. I run various versions of openmpi (from 1.1.2 to 1.2.8) on a cluster with Infiniband interconnects that I use and administer at the same time. T

[OMPI users] segmentation fault in opal_free_list_grow (derived datatypes + onesided)

Hi List, the attached test program (bsm-db.cc) always dies in malloc called from opal_free_list (backtrace in error.txt and valgrind (vg*) output can be found in the tar file). It seems that there is an invalid write in ompi_osc_pt2pt_sendreq_send. I checked the derived datatype using the che

Re: [OMPI users] question running on heterogeneous systems

Mahmoud Payami wrote: Dear OpenMPI Users, I have two systems, one with Intel64 processor, and one with IA32. The OSs on first is CentOS-86_64 and the other CentOS-i386. I installed Intel fortran compiler 10.1 on both. In the first I use the fce, and in the second I use fc directories (ifort

Re: [OMPI users] Global Communicator

Ted Yu wrote: I'm trying to run a job based on openmpi. For some reason, the program and the global communicator are not in sync and it reads that there is only one processors, whereas, there should be 2 or more. Any advice on where to look? Here is my PBS script. Thanx! PBS SCRIPT: #!/bi

Re: [OMPI users] 3.5 seconds before application launches

Vittorio wrote: Hi! I'm using OpenMPI 1.3 on two nodes connected with Infiniband; i'm using Gentoo Linux x86_64. I've noticed that before any application starts there is a variable amount of time (around 3.5 seconds) in which the terminal just hangs with no output and then the application starts

Re: [OMPI users] Memory leak in my code

Mark Allan wrote: Dear all, With this simple code I find I am getting a memory leak when I run on 2 processors. Can anyone advise why? I suspect the prototype of nonBlockingRecv is actually MPI_Request nonBlockingRecv(int **t, int &size, const int tag, const int senderRank) and in thi

Re: [OMPI users] looking for serial implementation

John Wohlbier wrote: I'm sure that I'm not the first person who wants their MPI program to compile when MPI is not available. It seems like the simplest solution to this is to have a header file (with implementation, or header file and .c file) that implements all of the functions for the case wh