[mvapich-discuss] Does mvapich2 really support dynamic process management?

[Hari Subramoni]

Hello,

Thanks for letting us know that things work fine with mpiexec.

Regards,
Hari.

On Monday, April 20, 2015, 马凯 <makailove123 at 163.com> wrote:

>     I'm so sorry to trouble you so much, but I forgot to tell you that
> launching the parent with mpiexec would be OK!
>
>
>
>
>
> At 2015-04-19 23:08:34, "Hari Subramoni" <subramoni.1 at osu.edu
> <javascript:_e(%7B%7D,'cvml','subramoni.1 at osu.edu');>> wrote:
>
> Hello,
>
> MVAPICH2 does indeed support Dynamic Process Management (DPM) :-).
>
> We had fixed some issues with DPM in the MVAPICH2-2.1GA version. So, can
> you please try with MVAPICH2-2.1GA version and see if the issue persists?
> You can download this from the following location
> http://mvapich.cse.ohio-state.edu/downloads/
>
> Can you also try launching your application with mpiexec instead of
> mpirun_rsh? Please refer to the following section of the userguide for more
> information
>
>
> http://mvapich.cse.ohio-state.edu/static/media/mvapich/mvapich2-2.1-userguide.html#x1-320005.2.2
>
> Regards,
> Hari.
>
> On Sun, Apr 19, 2015 at 10:54 AM, 马凯 <makailove123 at 163.com
> <javascript:_e(%7B%7D,'cvml','makailove123 at 163.com');>> wrote:
>
>> I tried the examples of parent and child in the mvapich2-2.1rc2/examples,
>> but they didn't work.
>> This is my compile commands:
>> #mpicc -o parent parent.c
>> #mpicc -o child child.c
>>
>> This is my run command:
>> #mpirun_rsh -np 4 -hostfile hf MV2_SUPPORT_DPM=1 ./parent
>>
>> And the content of hf is: 192.168.2.1
>> This is the IP of IB port on my node.
>>
>> After run the command, the parent will be stuck. Then I added some output
>> tips, and I found the MPI_Comm_spawn would never return.
>> It seems that the child had been start, but the MPI_Init in child would
>> not return.
>>
>> Why this happened? Does mvapich2 really support dynamic process
>> management or not?
>> Could some one give some help?
>> Thanks
>>
>>
>>
>> _______________________________________________
>> mvapich-discuss mailing list
>> mvapich-discuss at cse.ohio-state.edu
>> <javascript:_e(%7B%7D,'cvml','mvapich-discuss at cse.ohio-state.edu');>
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>>
>>
>
>
>
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