Fine-grained multithreading on the cray T3E

摘要

Fine-grained multithreading can be used to hide long-latency operations encountered in parallel computers during remote memrory access. Instead of using special processor hardware, the emulation of finegrained multithreading on standard processor hardware is investigated. While emulation of coarse-grained multithreading is common in modern operating systems, in the fine-grained case research on emulation has been limited and design of multithreaded processors has been faviored. A set of tools was developed to suport emulation of multithreading on the Cray T3E parallel computer. Several experiments based on parallel matrix multiplication were performed.