Ray Bittner and Peter Athanas
Configurable Computing Machines (CCMs) are an emerging class of computing platform which provide the computational performance benefits of ASICs, yet retain the flexibility and rapid reconfigurability of general purpose microprocessors. In these platforms, computational "hardware" is essentially swapped in and out of the platform as needed, much like paging in virtual memory systems. For an efficient platform, the swapping of the computational hardware (referred to as Run-Time Reconfiguration, or RTR) must be rapid. Thus far, the means of altering the configuration of CCMs has relied on global control strategies that present a fundamental bottleneck to the potential bandwidth of configuration information flowing into the CCM. Wormhole Run-time Reconfiguration is presented as a distributed control methodology that is applicable not only to the problem of
device-level CCM reconfiguration, but to system-wide concurrent computing as a whole. The Virginia Tech Colt/Stallion integrated circuits are computational FPGAs incorporating Wormhole RTR concepts, and are discussed as a case study.
|Published in||Proceedings of the 1997 ACM Fifth International Symposium on Field-Programmable Gate Arrays|
|Publisher||Association for Computing Machinery, Inc.|
Copyright © 2007 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications Dept, ACM Inc., fax +1 (212) 869-0481, or email@example.com. The definitive version of this paper can be found at ACM’s Digital Library --http://www.acm.org/dl/.