Productive parallel programming with CHARM++.

CHARM++ is a general-purpose framework for developing high-performance parallel applications [1]. Applications written using Charm++ run at scales spanning mobile devices [2], multi-core processors, multi-processor NUMA woprkstations and servers, networked clusters, and the world's largest supercomputers. A selection of Charm++ applications in production scientific usage is shown in Table 1. These applications consume the second most execution cycles on NSF computing resources, after MPI.