LilyTask: A task-oriented parallel computation model

Abstract

While BSP model is a concise parallel computation model, it has some limitations in functionality and performance. To overcome those limitations, we propose a task-oriented parallel computation model, named LilyTask, while remaining the virtue of conciseness. In LilyTask, tasks are taken as scheduling units in parallel computation, which may directly reflect the decomposition process of original problems. Further more, a task in LilyTask is allowed to generate subtasks of various granularities at runtime, which makes LilyTask very suitable for irregular problems. LilyTask model may also be applied to computational Grid to solve coarse-granularity parallel problems and loosely-coupled problems sets. © Springer-Verlag Berlin Heidelberg 2003.