Charm++ parallel programming system

[Tom Quinn <trq AT astro.washington.edu>]

What I do in ChaNGa is:

The Main object has an attribute "bIsRestarting".   The 
Main::Main(CkArgMsg* m) constructor sets this to "0", while the 
Main::Main(CkMigrateMessage* m) constructor (which is only called if 
restarting from a checkpoint) sets it to "1".  The callback 
method you pass to CkStartCheckpoint() can then test on "bIsRestarting".

Tom Quinn       Astronomy, University of Washington
Internet:       
trq AT astro.washington.edu
Phone:          206-685-9009

On Thu, 19 Mar 2020, Jozsef Bakosi wrote:

> Hi folks,
>
> Is there a way to detect from a Charm++ app that it just came back from
> a restart and not just finished a checkpoint?
>
> According to the manual:
>
> cb will be invoked after the checkpoint is done, as well as when the
> restart is complete:
>
> CkCallback cb(CkIndex_Hello::SayHi(), helloProxy);
> CkStartCheckpoint("log", cb);
>
> When cb is called, I'd like to zero some counters if and only if it just
> came back from a restart.
>
> Thanks,
> Jozsef