Hi Ramy,
Probably what you want is:
./configure --enable-timings
'./configure --help' provides a short description.
Note that since each of the peer processes (user processes) might
continue executing at slightly different times, this is measuring
the time solely on the DMTCP coordinator.
When the coordinator sends the final restart message ("DO_RESUME") to
the peer processes, the user threads are unblocked and return from the
signal handler that was used to pause them during checkpoint.
If you want to see exactly what is being measuring, try:
grep JTIMING src/dmtcp_coordinator.cpp
Best wishes,
- Gene
On Wed, Jun 10, 2015 at 02:04:52PM +0000, Gad, Ramy wrote:
> Hi,
>
>
> Can anybody provide me a quick hint on how to measure the restart time of an
> MPI application from a checkpoint using DMTCP ?
>
>
> Restart time =The time from launching the restart tool until the MPI
> application runs.
>
>
> Best regards,
>
>
> Ramy Gad
> Johannes Gutenberg - Universität Mainz
> Zentrums für Datenverarbeitung (ZDV)
>
> Anselm-Franz-von-Bentzel-Weg 12
> 55128 Mainz
> Germany
> E-Mail: [email protected]<mailto:[email protected]>
> Office Phone: +49-6131-39-26437
>
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