Charm++ parallel programming system

[Evghenii Gaburov <e-gaburov AT northwestern.edu>]

> This program does not PUP the MainCB callback member variable
> Variables which are not PUP'd will not retain their value after
> migration.  Therefore every migrated element will be calling an
> uninitialized callback in ResumeFromSync.
So, the freeze still occur even after MainCB is passed to PUP.

The test program I posted in the previous listing 
sometimes freezes with Greedy[Comm]LB, Refine[Comm]LB & MetisLB, but not with 
RotateLB,

when ckAboutToMigrate() & ckJustMigrated() are defined.

#if 1
     void ckAboutToMigrate() {}
     void ckJustMigrated() {}
#endif

Any idea what may happen here?

While in my simulation code I do not use these, I still experience freezes at 
ResumeFromSync() 
after having the code run for about an hour and after a dozens of AtSync() 
calls. I cannot reproduce
this behaviour in that simple test code, but may be this is related to the 
fact that in production code
I move a lot of data... 

Any help will be of great value!

Cheers,
 Evghenii



--
Evghenii Gaburov, 
e-gaburov AT northwestern.edu