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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