Automatic Methods for Hiding Latency in High Bandwidth Networks (Extended Abstract)
In this paper we describe methods for mitigating the degradation in performance caused by high latencies in parallel and distributed networks. Our approach is similar in spirit to the "complementary slackness" technique for latency hiding but has the advantage that the slackness does not need to be provided by the programmer and that large slowdowns are not needed in order to hide the latency. For example, given any algorithm that runs in T steps on an n-node ring with unit link delays, we show how to run the algorithm in O(T ) steps on any n-node bounded-degree connected network with average link delay O(1). This is a significant improvement over prior approaches to latency hiding, which require slowdowns proportional to the maximum link delay (which can be quite large in comparison to the average delay). In the case when the network has average link delay dave , our simulation runs in O( p daveT ) ...
Oh la la
Your session has expired but don’t worry, your message
has been saved.Please log in and we’ll bring you back
to this page. You’ll just need to click “Send”.
Your evaluation is of great value to our authors and readers. Many thanks for your time.
Review 
When you're done, click "publish"
Only blue fields are mandatory.
Your mailing list is currently empty.
It will build up as you send messages
and links to your peers.
No one besides you has access to this list.
Enter the e-mail addresses of your recipients in the box below.
Note: Peer Evaluation will NOT store these email addresses log in
Your message has been sent.
Description
New Full text for this article was not available?
Send a request to the author(s).
Title : Automatic Methods for Hiding Latency in High Bandwidth Networks (Extended Abstract)
Abstract : In this paper we describe methods for mitigating the degradation in performance caused by high latencies in parallel and distributed networks. Our approach is similar in spirit to the "complementary slackness" technique for latency hiding but has the advantage that the slackness does not need to be provided by the programmer and that large slowdowns are not needed in order to hide the latency. For example, given any algorithm that runs in T steps on an n-node ring with unit link delays, we show how to run the algorithm in O(T ) steps on any n-node bounded-degree connected network with average link delay O(1). This is a significant improvement over prior approaches to latency hiding, which require slowdowns proportional to the maximum link delay (which can be quite large in comparison to the average delay). In the case when the network has average link delay dave , our simulation runs in O( p daveT ) ...
Subject : unspecified
Area : Computer Science
Language : English
Url : http://www.wellesley.edu/CS/pmetaxas/stoc96.ps
Doi : 10.1.1.54.6254
Leave a comment
This contribution has not been reviewed yet. review?