Charm++ parallel programming system

[Nicolas Bock <nicolasbock AT gmail.com>]

Hi,

suppose I have a chare array A, and a single chare B. The A chares calculate something and want to add their results to some data in B. This can be done by calling

CProxy_Data B;

B.add(data);

inside a method of A. As far as I understand it, the RTS guarantees that this will not lead to a data race since it will not allow A::add() to execute in parallel. But now suppose I check whether A is local to the B chares and do this instead:

BLocal = A.ckLocal();

if(BLocal != NULL) BLocal->add(data);

will this not result in a data race if there are more than one B chare on a node?

Thanks,

nick