The role of optics in future high radix switch design
The work
| Authors | Nathan Binkert; Al Davis; Norman P. Jouppi; Moray McLaren; Naveen Muralimanohar; Robert Schreiber; Jung Ho Ahn |
|---|---|
| Editors | |
| Type | inproceedings |
| Year | 2011 |
| Citekey | binkert2011role |
Where it appeared
| Published in | Proceedings of the 38th Annual International Symposium on Computer Architecture (ISCA '11) |
|---|---|
| Publisher | Association for Computing Machinery |
| Pages | 437--448 |
Identifiers
| DOI | 10.1145/2000064.2000116 |
|---|---|
| OpenAlex | W1975965566 |
Access
| Landing page | https://doi.org/10.1145/2000064.2000116 |
|---|
Abstract
For large-scale networks, high-radix switches reduce hop and switch count, which decreases latency and power. The ITRS projections for signal-pin count and per-pin bandwidth are nearly flat over the next decade, so increased radix in electronic switches will come at the cost of less per-port bandwidth. Silicon nanophotonic technology provides a long-term solution to this problem. We first compare the use of photonic I/O against an all-electrical, Cray YARC inspired baseline. We compare the power and performance of switches of radix 64, 100, and 144 in the 45, 32, and 22 nm technology steps. In addition with the greater off-chip bandwidth enabled by photonics, the high power of electrical components inside the switch becomes a problem beyond radix 64.
How it got here
| How it got here | agent via openalex |
|---|---|
| Added | 2026-08-04 00:00 UTC |
| Not denied by | a person 2026-08-07 19:54 UTC |
Filed under
Cite it as
@inproceedings{binkert2011role,
title = {The role of optics in future high radix switch design},
author = {Nathan Binkert and Al Davis and Norman P. Jouppi and Moray McLaren and Naveen Muralimanohar and Robert Schreiber and Jung Ho Ahn},
year = {2011},
booktitle = {Proceedings of the 38th Annual International Symposium on Computer Architecture (ISCA '11)},
publisher = {Association for Computing Machinery},
pages = {437--448},
doi = {10.1145/2000064.2000116},
}
This record lives at https://refs.drheap.org/binkert2011role/ and will keep doing so.