[Beowulf] Multirail Clusters: need comments
greg.s.anderson at gmail.com
Tue Nov 29 05:38:15 PST 2005
I would like to know the views of the cluster gurus on multi-rail clusters,
esp, quad rail networks. Are quad rail networks practical to implement ( say
InfiniBand, Quadrics, Myrinet, (GE, maybe not?)).
- What are the issues?
- Are there any quad rail HPC clusters? (me and google couldn't find any)
- Are drivers an issue?
- Does the performance increase significantly to justify the cost and
The assumption is that the plan is to solve comm or BW crippled apps, on
large SMP nodes (say 8+ CPUs).
Note: I found just one line in a CLRC Daresbury lab presentation about
quadrail Quadrics on Alpha (probably QsNet-1?) Any update on QsNet2/Eagle?
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