GPU WU checkpoint / CPU use
3 Dec 2016 19:41:16 UTC
Topic 203403
(moderation:
Binary Radar Pulser Search (Arecibo, GPU) 1.39 (BRP4G-opencl-ati) WU don't demand much CPU at all, but they don't hardly ever checkpoint either.
Any idea if GPU units will checkpoint more often in the future? Moreover, can the 4-cored AMD A6-3420M APU with Radeon(tm) HD Graphics, i.e., AMD Radeon HD 6520G, crunch two BRPS(A,G) 1.39 (BRP4G-O-A) WU's concurrently? If it can, how do I make it so?
Professor Ray wrote:Moreover,
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I don't think that GPU can, because it is marked to have 512MB memory. I believe two tasks would require more than that. You can always try.
Check what is the location of that computer (in details of that host). Then on the account page click Preferences, then Project. Choose the same Preference set as your host is set for. Then at the Other settings put "0.50" on those boxes. That means every tasks will theoretically require only 0.50 GPU. Click Save.
Set your project to not ask for new tasks. Click update for that project and let Boinc client contact the server at first. Boinc client will get to know the new Project settings. Then allow project to get new tasks. Those new GPU tasks should then arrive with the "0.50 GPU" thIng. But If your GPU is not able to allocate enough memory for running two tasks simultaneosly, then only one will run at a time.
Copy that. Thing is that at
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Copy that.
Thing is that at the Einstein account project settings, both CPU & GPU are set at 1 for each, but the WU's are listed as crunching at 0.50 CPU + 1 AMD / ATI GPU.
Don't know if it makes a difference, but the local prefs are set at 0.25 CPU; this restricts BOINC to processing one other project WU - besides Einstein using the above stated crunch-power - since the GPU processing caused the fan to constantly spin up and down to grimace proportions and all that and what not.