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Bug #1477

All Load Balancing Strategies should be CPU frequency (rate) aware

Added by Phil Miller over 2 years ago. Updated almost 2 years ago.

Status:
New
Priority:
Normal
Assignee:
Category:
-
Target version:
Start date:
03/31/2017
Due date:
% Done:

0%


Description

Under an assumption of full or near-full CPU load when applications and the RTS are running well, we've found that TurboBoost and similar dynamic overclocking systems produce a wide range of resulting speeds across the many processors in a large cluster/supercomputer. Thus, each hardware unit will be capable of different amounts of work over the same unit of time. Our load balancing strategies should uniformly take this into account.

There's a higher-order bit of adaptivity that's possible here, of strategies intentionally un-loading some cores to allow others to boost further. I'm not asking for that here.

History

#1 Updated by Eric Bohm about 2 years ago

  • Assignee changed from PPL to Juan Galvez

#2 Updated by Juan Galvez almost 2 years ago

  • Target version changed from 6.9.0 to Unscheduled

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