[mpich-discuss] Help for strange MPI error

[Xiao Li]

Hi MPICH2 community,

I am now learning MPI programming. My code is something like this:

MPI_Init(&argc,&argv);
MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
MPI_Comm_rank(MPI_COMM_WORLD,&rank);

if(rank != 0)
{
     //workers do something here
    // no other MPI runtiness are used
}
MPI_Finalize();

I start 14 processes on four machines to run this programs. However, my
programs seems halt on MPI_Finalize(). I check the log and find these error
information.

[03:5784]......ERROR:result command received but the wait_list is empty.
[03:5784]....ERROR:unable to handle the command: "cmd=result src=0 dest=3
tag=32 cmd_tag=21 ctx_key=1 result=SUCCESS "
[03:5784]..ERROR:error closing the unknown context socket: Error = -1

May I know what does these error information mean?

cheers
Xiao
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