After a considerable amount of work,
I have resurrected the BOINC client simulator,
with some major improvements:
1) it can simulate GPUs (arbitrary combinations of them)
2) it takes existing files (client_state.xml, cc_config.xml,
global_prefs.xml) as input rather than special XML files.
3) it generates graphs of debt (STD and LTD, all resource types).
In the first hour of playing with the simulator,
I was able to reproduce a problem that Richard Haselgrove
reported many months ago: diverging STD.
From there it was very easy to diagnose and fix it.
The web interfaces to the new simulator is here:
http://boinc.berkeley.edu/sim_form.php
I encourage people to experiment with this.
In particular, if you find a scenario in which something bad happens
(wacky debts, idle devices, unnecessary deadline misses)
send me the URL of the simulation.
More detailed doc is here:
http://boinc.berkeley.edu/trac/wiki/ClientSim
but it's not finished yet
-- David
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