[mpich-discuss] Help for strange MPI error

[王睿]

You may use valgrind to help you detect the error.

--From a stander-by :)


2011/1/1 Xiao Li <shinelee.thewise at gmail.com>

> 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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>
>


-- 
Rui Wang
Key Laboratory of Computing Systems and Architecture,
Institute of Computing technology,
Chinese Academy of Science,
Beijing, P.R.China
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