[mpich-discuss] Problem setting up MPI cluster

[Ken Raffenetti]

Hi,

This type of heterogeneous configuration (arm + x86) is not supported 
with MPICH today.

Ken

On 9/10/18 9:03 AM, Matthew Overlin wrote:
> Hello, all.  I have been using MPI locally for awhile, but I am now 
> tryiong to set up an MPI cluster: my ubuntu desktop computer & a 
> raspberry pi with ubuntu mate.
> 
> I am following the steps here 
> <https://help.ubuntu.com/community/MpichCluster>.
> That is, on the client (rpi) side, I mount a drive on the master (desktop).
> To test the set-up, I issue an mpirun command to get the hostname from 
> each IP address:
> $ *mpirun -np 2 -hosts XX.XX.X.60, XX.XX.X.136 hostname*
> userName-Z97X-UD3H-BK
> [mpiexec at userName-Z97X-UD3H-BK] control_cb 
> (pm/pmiserv/pmiserv_cb.c:208): assert (!closed) failed
> [mpiexec at userName-Z97X-UD3H-BK] HYDT_dmxu_poll_wait_for_event 
> (tools/demux/demux_poll.c:77): callback returned error status
> [mpiexec at userName-Z97X-UD3H-BK] HYD_pmci_wait_for_completion 
> (pm/pmiserv/pmiserv_pmci.c:198): error waiting for event
> [mpiexec at userName-Z97X-UD3H-BK] main (ui/mpich/mpiexec.c:340): process 
> manager error waiting for completion
> 
> I get a hostname from one IP address, but not the other IP address.  
> Would someone happen to know what is going on here?  I'm not having much 
> luck with this error message, or from other people's advice on 
> forums/blogs/etc.  I have mpich on both the desktop and raspberry pi. 
> Ideally, I want to have point-to-point communication example between the 
> two, some kind of inter-computer ("client/server") communication.
> 
> Thanks!
> Matt Overlin
> 
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