Hi Hirak,

I checked your code. I think your code is incorrect because you are trying to establish communication within a single process. You are using two threads and two duplicated communicators, but they are associated with a single process. MPI_Comm_accept() and MPI_Comm_connect() are used to establish communication between “two sets of MPI processes” (i.e., at least two different processes are needed). Please refer to 10.4 Establishing Communication (p. 387) in MPI Standard 3.0.

— Sangmin

Hi Pavan,

Here is the code attached. Let me know if you think the code is incorrect.

I used MPI-3.0.4 with sock device.

Compile command : 

export MPI_ROOT = /home/hroy/local/mpich-3.0.4/linux_x86_64

#export MPI_ROOT = /home/hroy/local/mpich-3.0.4.nemesis/linux_x86_64

export MPI_BIN = ${MPI_ROOT}/bin

export MPI_LIB = ${MPI_ROOT}/lib

export INCLUDE_DIR = ${MPI_ROOT}/include

compile: 

        g++ -g  main.cpp  -I ${INCLUDE_DIR} ${MPI_LIB}/libmpich.a ${MPI_LIB}/libmpl.a -lpthread 

Thanks,

Hirak

Can you send us a simple program that reproduces the issue?

  — Pavan

On Oct 8, 2014, at 2:54 PM, Roy, Hirak <Hirak_Roy at mentor.com> wrote:

> Hi Pavan,

>  

> I even tried duping the communicator (MPI_COMM_SELF à DUP1, DUP2) before I do any kind of MPI calls. 

> Still it does not work.

>  

> Thanks,

> Hirak

>  

 

<main.cpp>_______________________________________________
discuss mailing list     discuss@mpich.org
To manage subscription options or unsubscribe:
https://lists.mpich.org/mailman/listinfo/discuss