[OMPI users] Copying installed runtimes to another machine and using it

Hi, When I copy my OpenMPI installed directory to another computer (the runtime files), and point PATH and LD_LIBRARY_PATH to this installed folder (to make mpirun point to the copied folder's bin), it does not seem to run (it's not supposed to run because I compiled it on a different machine with

Re: [OMPI users] OpenMPI at scale on Cray XK7

On Apr 22, 2013, at 3:46 PM, Nathan Hjelm wrote: > On Mon, Apr 22, 2013 at 03:17:16PM -0700, Mike Clark wrote: >> Hi, >> >> I am trying to run OpenMPI on the Cray XK7 system at Oak Ridge National Lab >> (Titan), and am running in an issue whereby MPI_Init seems to hang >> indefinitely, but th

Re: [OMPI users] OpenMPI at scale on Cray XK7

On Mon, Apr 22, 2013 at 03:17:16PM -0700, Mike Clark wrote: > Hi, > > I am trying to run OpenMPI on the Cray XK7 system at Oak Ridge National Lab > (Titan), and am running in an issue whereby MPI_Init seems to hang > indefinitely, but this issue only arises at large scale, e.g., when running >

[OMPI users] OpenMPI at scale on Cray XK7

Hi, I am trying to run OpenMPI on the Cray XK7 system at Oak Ridge National Lab (Titan), and am running in an issue whereby MPI_Init seems to hang indefinitely, but this issue only arises at large scale, e.g., when running on 18560 compute nodes (with two MPI processes per node). The applicati

[OMPI users] Using Boost::Thread for multithreading within OpenMPI processes

Hi, I would like to create a pool of threads (using Boost::Thread) within each OpenMPI process to accelerate my application on multicore CPUs. My application is already built on OpenMPI, but it currently exploits parallelism only at the process level. I am wondering if anyone can point me to some

[OMPI users] Barrier implementation and use

Hi all, I'm using mixed MPI/pthreads with MPI_THREAD_MULTIPLE support. At some point, only one of the threads on each process communicate, while the others keep waiting in a MPI_Barrier. The traces I took from execution suggest that the linux scheduler is waking up the threads blocked in the

[OMPI users] Call For Participation: EuroMPI 2013. Madrid, Spain. September 15-18th, 2013

Dear Sir or Madam, (We apologize if you receive multiple copies of this message) Recent Advances in Message Passing Interface. 20th European MPI Users' Group Meeting (EuroMPI 2013) EuroMPI 2013 is being held in cooperation with SIGH

Re: [OMPI users] MPI based HLA/RTI ?

Mainly responding to Ralph's comments. In HLA a federate (MPI process) can join and leave a federation (MPI collective) independently from other federates. And rejoin later. ---John On Mon, Apr 22, 2013 at 11:20 AM, George Bosilca wrote: > On Apr 19, 2013, at 17:00 , John Chludzinski > wrote

Re: [OMPI users] MPI based HLA/RTI ?

On Apr 19, 2013, at 17:00 , John Chludzinski wrote: > So the apparent conclusion to this thread is that an (Open)MPI based RTI is > very doable - if we allow for the future development of dynamic joining and > leaving of the MPI collective? John, What do you mean by dynamically joining and le

[OMPI users] Misuse or bug with nested types?

Hi, I have a problem receiving a vector of a MPI_datatype constructed via MPI_Type_create_struct. It looks like MPI_Send or MPI_Recv doesn't works as expected: some parts of a nested struct in the received buffer are not filled at all!. I tested the code under mpich 3.0.3 and it worked perf