As a matter of interest I was looking through some other SETI@Home teams CPU breakdown to see what is being used to process work units and found a CPU which only has 2 cores being repoted to having 21 cores! Not sure how this is possible. In the following image check the second unit listed.http://boincstats.com/en/stats/0/host/breakdown/cpu/113799

Now the CPU specs. http://ark.intel.com/products/41495/Intel-Core2-Duo-Processor-E7600-3M-Cache-3_06-GHz-1066-MHz-FSB. Anyone got any ideas on this?

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The "# CPU (cores)" column on that stats page indicates the total number from however many E7600 host systems are attached to the project. IOW, the 21 is probably something like 10 hosts using both CPUs and one more using only one. If you look at a more popolar project you'll find a much higher count of cores for many CPU types.

                                                                   Joe

Or it might be something like the 22-core i5 you can see here [for the time being - please remind me to take the other 18 cores out again before bedtime].

BOINC has a configuration option which allows you to simulate a host with an arbitrary number of cores - that can be useful for debugging, if you can't afford the real thing. But you would be running all 20-plus tasks on the same physical hardware, with probably a huge amount of cache thrashing and context switching. It would be dreadfully inefficient - just look at how little credit per core (s)he is getting.

It's possible to display "0" processors, maybe with help of the cc_config.xml file?
For members which don't crunch on the CPU but just on the GPU (to show it other members if they check the hosts of them ;-).

* Best regards! :-) * Philip J. Fry, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. *

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The latter is an interesting question which has been probably answered before but I'll ask it anyway :

I'm thinking of building a machine with 2 GPU's on a MB with only 2 cores. So to free 2 cores I'm left with no CPU crunching. Is it possible to adjust some settings in Boinc or the app info to make it possible only to ask GPU work. This is kind of an old rig, but it has 2 PCIE 16x ports on the MB and 8GB ram so it would be possible in my opinion...

Comments or suggestions please ?

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The latter is an interesting question which has been probably answered before but I'll ask it anyway :

I'm thinking of building a machine with 2 GPU's on a MB with only 2 cores. So to free 2 cores I'm left with no CPU crunching. Is it possible to adjust some settings in Boinc or the app info to make it possible only to ask GPU work. This is kind of an old rig, but it has 2 PCIE 16x ports on the MB and 8GB ram so it would be possible in my opinion...

Comments or suggestions please ?

You can do this in your project preferences on the web site. Just uncheck "Use CPU".

If you're running multiple rigs and only want to do it to one, set up a venue for that one with separate preferences. My two boxes run on separate venues, even though they sit about three feet apart.

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David
Sitting on my butt while others boldly go,
Waiting for a message from a small furry creature from Alpha Centauri.

I currently run such a rig. My host 3480243. It's my first core2 rig, a dual core.
It currently supports a 580 and a 560. I leave one core doing CPU crunching, and the other one idle to support the GPUs.

It right now has a RAC of around 42,000.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster