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[Bug-gnubg] Linux dual-cores and GNUBG rollouts

From: Dave Bellows
Subject: [Bug-gnubg] Linux dual-cores and GNUBG rollouts
Date: Sat, 8 Dec 2007 12:59:50 -0500

Hello all.  I have a brand new AMD64 dual core processor running on
Debian Testing using gnubg .15.  I am participating in a backgammon
rollout program and understand very little about how these dual core
processors are supposed to work.  When running one instance of gnubg I
see that in the system monitor the CPU usage hangs out around 100% for
one core and nothing or very low for the other.  And then every few
seconds the cores switch.  I do not believe this is the most efficient
use of resources, is it?   I see that version .16 has multi-thread
support but that the binaries are only for Windows.  Will this compile
for Linux?  And will doing so make the process more efficient?  Am I
completely misunderstanding all of this?

When I run two instances of gnubg doing rollouts the cores max out and
I notice that the estimated time to completion stays the same for both
rollouts.  That seems like a good thing?


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