GMT: Enabling easy development and efficient execution of irregular applications on commodity clusters
Alessandro Morari, Oreste Villa, Antonino Tumeo, Daniel Chavarria Miranda, Mateo Valero Cortés · UPCommons institutional repository (Universitat Politècnica de Catalunya) · 2013
In this poster we introduce GMT (Global Memory and Threading library), a custom runtime library that enables efficient execution of irregular applications on commodity clusters. GMT only requires a cluster with x86 nodes supporting MPI. GMT integrates the Partititioned Global Address Space (PGAS) locality-aware global data model with a fork/join control model common in single node multithreaded environments. GMT supports lightweight software multithreading to tolerate latencies for accessing data on remote nodes, and is built around data aggregation to maximize network bandwidth utilization.