Joined: 2 Oct 00
|ID: 1361524 ·|
Joined: 9 Jun 99
1. how can I completely disable GPU computing?
You disable the use of the GPU by going to Your Account->then edit the Project preferences and uncheck "Use Nvidia GPU". This will have BOINC stop asking for work for the GPU, it will not affect any GPU work already in cache. That will have to run to completion, or be aborted.
2. how DO people actually use their GPUs for BOINC?
It's not BOINC that is at fault here. BOINC detects your GPU perfectly fine, but it doesn't do any calculations. That's done by the project science applications. So it's as you assume, the Seti application is the problem here. Seti has at the moment 3 CUDA applications, one for just plain CUDA (old cards, early drivers), CUDA2.3 (middle card, middle drivers) and CUDA-Fermi. The latter is for Fermi style GPUs, the GTX 4xx and 5xx GPUs.
The GTX 6xx GPUs differ in architecture, and are not backward compatible with any of the previous applications. And thus any work that is run on them without any of the 3 workarounds given in the sticky thread, will result in error.
So the only thing you have to do to get things working right, is to just follow the setting of the environment variable and your Kepler GPU will work without trouble. It's been tried and tested by many. They can't all be wrong.
Ancient Astronaut Theorists suggest that in many ways, you can be considered an alien conspiracy!
|ID: 1361574 ·|
Joined: 2 Oct 00
|ID: 1365853 ·|
Joined: 27 May 07
... it rarely goes above 2 or 3 percent GPU usage
This is normal with new NVIDIA drivers (like yours 314.22 ; IIRC drivers > 270 act like this)
(Which programs do you use to monitor GPU load? E.g.:
SIV - System Information Viewer
You need to free a CPU core to fix low % GPU usage
I think you use Local preferences (in BOINC Manager):
On multiprocessor systems, use at most 99 % of the processors
This will free one CPU core (one less CPU task will be run)
- ALF - "Find out what you don't do well ..... then don't do it!" :)
|ID: 1365870 ·|
©2016 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.