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Charm++ is a parallel object-oriented programming language based on C++ and developed in the Parallel Programming Laboratory at the University of Illinois. Charm++ is designed with the goal of enhancing programmer productivity by providing a high-level abstraction of a parallel program while at the same time delivering good performance on a wide variety of underlying hardware platforms. Programs written in Charm++ are decomposed into a number of cooperating message-driven objects called chares. When a programmer invokes a method on an object, the Charm++ runtime system sends a message to the invoked object, which may reside on the local processor or on a remote processor in a parallel computation. This message triggers the execution of code within the chare to handle the message asynchronously.

Il faut tout d'abord charger les modules nécessaires :

module load ompi charm++

Accès aux commandes telles que : charmc et charmrun

arrayhelloworld.tar.gz

$ charmrun +p3 ./hello 10
Running "Hello World" with 10 elements using 3 processors.
"Hello" from Hello chare # 0 on processor 0 (told by -1).
"Hello" from Hello chare # 1 on processor 1 (told by 0).
"Hello" from Hello chare # 2 on processor 2 (told by 1).
"Hello" from Hello chare # 3 on processor 0 (told by 2).
"Hello" from Hello chare # 4 on processor 1 (told by 3).
"Hello" from Hello chare # 5 on processor 2 (told by 4).
"Hello" from Hello chare # 6 on processor 0 (told by 5).
"Hello" from Hello chare # 7 on processor 1 (told by 6).
"Hello" from Hello chare # 9 on processor 0 (told by 8).
"Hello" from Hello chare # 8 on processor 2 (told by 7). 

http://charm.cs.uiuc.edu/manuals/html/charm++/