[mpich-discuss] MPI_Scatter message truncated

[Pavan Balaji]

Please send us a simple program that reproduces this problem.

  -- Pavan

On 07/24/2013 04:21 PM, Sufeng Niu wrote:
> Hi,
>
> I apologize to post so many questions, but I got a new question here: my
> program runs everything well on 1 machine right now. when I run it on
> two machines, the program got error:
>
> Fatal error in PMPI_Scatter: Message truncated,
> MPIDI_CH3U_Receive_data_found(131) Message from rank 0 and tag 5
> truncated. 1774000 bytes received but buffer size is 52.
> MPIC_Send(59).......: Negative count, value is -32
>
> I cannot understand how does this happened. the hello world is tested
> for network link. and the program is fine running on one computer.
>
> Thank you very much for any suggestions
>
> --
> Best Regards,
> Sufeng Niu
> ECASP lab, ECE department, Illinois Institute of Technology
> Tel: 312-731-7219
>
>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji