Record Details

Load Based Dynamic Priority Arbiter for NoC Architecture

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Load Based Dynamic Priority Arbiter for NoC Architecture
 
Creator S, Parvathi
S, Umamaheswari
 
Subject Buffers
Dynamic arbiter
FIFO arbiter
Fixed priority arbiter
Routing
Virtual channels
 
Description 495-504
The evolution of Very Large Scale Integration (VLSI) and the semiconductor industry have led to the focus on multicore
architectures. Network on Chip (NoC) is one of such arrangement which is an interconnection framework comprised of
cores, routers, and links. The output port for each request from the input port must be computed, and the output channel
must be reserved for the next router. However, the same output port can be requested by more than one input port, but only
one request can be granted at a time. Multiple requests for a single output channel will lead to congestion of the packets,
thereby increasing the network latency and leading to packet losses. The arbiter selects any one of the input ports and grants
permission to use the requested output port while putting the other input port requests to wait. For a congestion-free traversal
of packets and to avoid dropping of packets, a Load based Dynamic Priority Arbiter (LDPA) with dynamically changing
priorities during run time based on the input port load has been proposed. The proposed customized arbiter LDPA works
based on the updates made in the reservations of each input port. The priority of each input port is given according to the
average load. More weight is allotted to the highly loaded input ports. By randomization, the chance is given to the lower
priority input ports to reduce starvation and hence latency. With the use of the proposed LDPA, the average network latency
is reduced by about 15.98% when compared to that of baseline FIFO arbiter, without any compromise in power and
throughput.
 
Date 2022-05-05T10:53:56Z
2022-05-05T10:53:56Z
2022-05
 
Type Article
 
Identifier 0975-1084 (Online); 0022-4456 (Print)
http://nopr.niscair.res.in/handle/123456789/59676
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source JSIR Vol.81(05) [May 2022]