Difference between revisions of "Cluster:LLK Poster Structure"
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===Benchmarks=== | ===Benchmarks=== | ||
| + | * netpipe (low level) | ||
| + | * MrBayes (high level) | ||
==Test Results== | ==Test Results== | ||
Revision as of 12:35, 28 January 2006
Contents
Abstract
Network latency continues to be a bottleneck for many computational science applications on Beowulf clusters. Using open source tools, we develop technology for making nanosecond precision measurements between timing points within the 2.6 Linux kernel. Using this technology, in conjunction with low-level and application benchmarks, we establish that there is significant network latency in the kernel and identify its origin. Lastly, we survey software-based latency reduction technologies and make recommendations based on our measurements. (original)
Keywords:
The Problem
Overview
Motivation
Survey/Current State of Affairs
Places to look:
- Beowulf archives
- ACM
- IEEE
- Citeseer
- Google Scholar
Methodology
Measurement (Techniques)
- TCP/IP stack time point placement
- tp_timer
- high res timing w/counters
Verification and Validation
(Analysis) Tools
- /proc -> database
- PHP/gnuplot visualization
Benchmarks
- netpipe (low level)
- MrBayes (high level)
Test Results
(tabular, incl. test environment)
