Forum > GPU crunching
Modified SETI MB CUDA + opt AP package for full GPU utilization
Richard Haselgrove:
--- Quote from: Raistmer on 14 Jan 2009, 06:11:48 am ---
search for cc_config.xml file description. You need ncpus field.
--- End quote ---
http://boinc.berkeley.edu/wiki/Client_configuration
Raistmer:
--- Quote from: alexeft on 14 Jan 2009, 06:15:51 am ---What I notice is that it goes slow at the beginning of the WU and then accelerates rapidly. Why is that so?
--- End quote ---
This behavior is not specific to V5b build AFAIK. At the beginning of task (and on each restart) some CPU pre-processing should be done (and GPU initial feeding by data) - so few seconds there will be no % done increase.
alexeft:
No, I'm not talking about those few seconds.
In the beginning it goes at 0.05% per second.
In the middle it goes at 0.1% per second.
Toward the end it goes at 0.3% per second.
Not specific to 5b, all versions did that!!!
Raistmer:
--- Quote from: alexeft on 14 Jan 2009, 06:29:28 am ---No, I'm not talking about those few seconds.
In the beginning it goes at 0.05% per second.
In the middle it goes at 0.1% per second.
Toward the end it goes at 0.3% per second.
Not specific to 5b, all versions did that!!!
--- End quote ---
Don't know - think it's algorithm dependent feature. Maybe someone else can better satisfy your curiosity.
FloSoft:
Hi,
updated my cuda-app today to 5b and I get client errors: http://setiathome.berkeley.edu/result.php?resultid=1121446826
the "stock" cuda app works, but only says 2-3minutes cpu-time, but computes for 30minutes
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