Message boards :
Number crunching :
Uneven usage of GPUs
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Author | Message |
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skildude Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 |
I had this issue before, in my case happens when for some reason the nvidia driver is corrupted, for example if you try to do remote access with RDP. Normaly restarting the computers solve the problem. You got to it first. Yes VNC basically doesnt allow BOINC/S@H access to the drivers which either stops the WU in progress or kills it outright In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
Bernie Vine Send message Joined: 26 May 99 Posts: 9954 Credit: 103,452,613 RAC: 328 |
I have used VNC for years all flavours and never had it affect any GPU crunching on any of my machines. However there is a "Video Hook Driver" that I normally don't install. Perhaps it's that. |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I have used VNC for years all flavours and never had it affect any GPU crunching on any of my machines. I use the RealVNC video hook driver on my HTPC, which isn't doing work at the moment. However when I have BOINC running with the CPU & GPU I have not had any issues with BOINC stopping/suspending work when I am connected remotely. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
Vipin Palazhi Send message Joined: 29 Feb 08 Posts: 286 Credit: 167,386,578 RAC: 0 |
My patience was wearing thin, so instead of experimenting with VNC and video drivers and possibly something else, I just went ahead and did a clean re-installation on this rig and till now everything 'seems' to be running smoothly. I must add that the second rig that I have has never exhibited any issues with either the graphics driver or the VNC (no hook drivers). Only the rig running GTX 480 somehow always misbehaves. A quick question - if a GPU by itself generates an RAC of x, is it safe to assume that two of these cards would give 2x RAC? Or is it just theoretic? |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Should be close, but maybe not quite. 2 GPUs require more support from the host computer's CPU and RAM, so depending on those systems, 2 might not 'quite' get double what the single one would do. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
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