학술논문
Efficient Spatial Processing Element Control via Triggered Instructions
Document Type
Periodical
Author
Source
IEEE Micro Micro, IEEE. 34(3):120-137 Jun, 2014
Subject
Language
ISSN
0272-1732
1937-4143
1937-4143
Abstract
In this article, the authors present triggered instructions, a novel control paradigm for arrays of processing elements (PEs) aimed at exploiting spatial parallelism. Triggered instructions completely eliminate the program counter and allow programs to transition concisely between states without explicit branch instructions. They also allow efficient reactivity to inter-PE communication traffic. The approach provides a unified mechanism to avoid overserialized execution, essentially achieving the effect of techniques such as dynamic instruction reordering and multithreading, which each require distinct hardware mechanisms in a traditional sequential architecture.