... and two further questions, Manisha:
1. Which dialect of MPI are you using.
2. Are you running over TCP/IP or Infiniband? (Right now, DMTCP handles
only TCP/IP, such as Ethernet, etc. A future version will
support Infiniband.)
Best,
- Gene
On Thu, Sep 27, 2012 at 02:57:36AM -0400, Kapil Arya wrote:
> Hello Manisha,
>
> I want to checkpoint an MPI application and for that i installed DMTCP
> > check pointing tool. It is configured well. But when i checkpoint my
> > application it is showing error. I am using dmtcp-1.2.6.tar.gz package.
> >
> <snip>
>
> > dmtcp_checkpoint ./runme_intel64 (name of the executable)
> >
> > As i type the above command, it shows the following error-
> >
> > WARNING at kernelbufferdrainer.cpp:100 in onTimeoutInterval;
> > REASON='JWARNING(false) failed'
> > _dataSockets[i]->socket().sockfd() = 5
> > buffer.size() = 0
> > WARN_INTERVAL_SEC = 10
> > Message: Still draining socket... perhaps remote host is not running under
> > DMTCP?
> >
>
> Is your application connecting to some external database/webserver or some
> other service? It looks like DMTCP is trying to drain a socket, but the
> other end is not under checkpoint control.
>
> Also, can you tell us more about your setup? As in, which MPI are you using
> (OpenMPI/Mpich2), how are you launching the MPI coordinator etc.
>
> Kapil
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