An Overview of the Opus Language and Runtime System

We have recently introduced a new language, called Opus, which provides a set of Fortranlanguage extensions that allow for integrated support of task and data parallelism. It also provides ata abstractions (SDAs) as a method for communication and synchronization among these tasks. In this paper, we rst provide a brief description of the language features and then focus on both the language-dependent and language-independent parts of the runtime system that support the language. The language-independent portion of the runtime system supports lightweight threads across multiple address spaces, and is built upon existing lightweight thread and communication systems. The language-dependent portion of the runtime system supports conditional invocation of SDA methods and distributed SDA argument handling.

• Type: Conference
• Year: 1994
• Where: LCPC
• Authors: Piyush Mehrotra, Matthew Haines
• Keywords: Ata Abstractions, Language-independent Portion, LCPC 1994, Lightweight Thread, System Software