Forum topic

modify environment variable from MPICH


Authored by Xiaobin Q. Last updated on 11/30/2016 - 07:47
Forum topic

Internal MPI error! cannot read from remote process

On my Dell laptop (E7440 with an Intel i7), mpirun on my program terminates with the following:

Authored by paul g. Last updated on 11/23/2016 - 12:29
Forum topic

MPI_Send/ MPI_Rcv don't work with more then 8182 double

Hi, I'm having some troubles with the attached code SendReceive.c.

Authored by Paolo M. Last updated on 11/23/2016 - 12:27
Forum topic

The matched MPI Send/Recv pairs are mixed up


Authored by seongyun k. Last updated on 11/23/2016 - 12:20
Forum topic

intel MPI and oversubscribing



for launching test base we use previously openMPI with theses options in order to position oversubcribing

Authored by harry j. Last updated on 11/23/2016 - 12:05
Forum topic

Environment variables defined by intel mpirun?

Hello Forum Gurus,

Authored by Michael C. Last updated on 11/23/2016 - 11:57
Forum topic

Intel MPI real-time performance problem

Hello: In my case ,i found sometimes MPI_Gather() take more than 5000-40000 cpu crcle,but normally MPI_Gather() only take about 2000 cpu crcle.

Authored by wang b. Last updated on 11/23/2016 - 11:52
Forum topic

efficent methood for hybrid OpenMP and MPI

Hi, I have a question about an efficient method for extending well implemented scientific code written using C++ and OpenMP, to MPI layer.

Authored by Lukasz S. Last updated on 11/23/2016 - 11:47
Forum topic

iMPI 5.2.1 Omni-Path tuning


For older Intel MPI versions, we were told to set this:

export I_MPI_HYDRA_PMI_CONNECT=alltoall.   Is this needed with Intel MPI 5.2.1?  And is 5.2.1 the latest version? 

Authored by Ronald G. Last updated on 11/23/2016 - 11:34
Forum topic

MPI crashes with the error message: (it_plfd->revents & POLLERR) == 0


Does any one know what the following error message mean? where should I check?

[20] rank = 0, revents = 24, state = 8

Authored by seongyun k. Last updated on 11/23/2016 - 11:28
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