Hey Y'all,
I have the Stanford University Folding At Home project running on three of my machines. I had them all set up so that I could control them all from my main machine, 192.168.15.101, but some time ago something changed so that I can no longer connect to the FAH clients on the other two machines. I figured it wasn't really important so I would look into it later. Well time has passed and my Christmas break is almost passed too to I guess this is the time to figure it out.
I can still SSH onto both machines. I can ping both machines.
When I open the FAH Control on my machine connection to clients running on 192.168.15.105 and 192.168.15.107 fails.
I'm assuming that there would be an entry in a log on those two machines detailing the failed connection attempt.
What log file should I be looking at?
On Wed, Dec 30, 2015 at 11:03:50PM -0500, Mark LaPierre wrote:
weird.
can't say as I have a clue. but I'd start with the various files in /var/log and perhaps move on to whatever log files the fahclient maintains.
Perhaps there's a firewall (or SeLinux) getting in the way?
Is it safe to assume you're running the same client version on all machines? perhaps even the latest?
Oh, and pardon my noisiness, but what team are you folding for? If not Centos, have you considered joining the CentOS team? over the years there have been quite a few Centos folders, but now it's down to just three of us.
Fred
On 12/30/15 23:03, Mark LaPierre wrote:
Hey CentOS FAH team members. Do any of you have a GPU that is actually folding in CentOS 6?
If you do please tell me exactly what video card and what driver you are using?
I have a GeForce 9600 GT card that will not fold. FAH finds the GPU and sets up a slot for it but it always says "Update Core" in the slot status field with zero progress. I'm not happy with that.
On Sun, Jan 31, 2016 at 09:42:43PM -0500, Mark LaPierre wrote:
I tried GPU folding in Centos-6, but the FAH log file showed continuous errors for the GPU (which was, at the time a Nvidia n460GTX). Inquiries on the FAH forums indicated that there are library incompatibilities on Centos-6 and that it would be difficult or impossible to make it work.
I eventually upgraded to Centos-7 and then easily got GPU folding to work on the same video card without difficulty.
FYI, I had previously (couple of years ago) attempted GPU folding on C6 using a 9800GT, and was told (again, on the FAH forums) that that GPU was no longer supported. I'd guess that your 9600GT is also too old.
Here's the FAH forum thread on that GPU compatibility issue: https://foldingforum.org/viewtopic.php?f=80&t=25284&p=252427&hil...
I've recently replaced the 460GTX with a new 750ti card, and found two amazing benefits: 1. according to my KillaWatt meter, the computer's power draw dropped from 275-295 watts to 190-195 watts, 2. my PPD total per week has gone from around 200K to more like 400K. In fact, the last 3 weeks have all been around 440K, some slightly lower, some a little higher.
The 750ti was a fairly cheap card, at $129.
If you do please tell me exactly what video card and what driver you are using?
I'm using the Nvidia 340 driver from the elrepo repository. Be sure to install the dkms package from epel before installing these nvidia drivers.
See above for compatibility comments on this card.
On 01/31/16 22:10, Fred Smith wrote:
Thanks for the input Fred.
The GeForce 9600 GT is listed in the GPUs.txt file as of Jan 20. It should be compatible but I guess it won't work on C6 though. I'm not in any hurry to move to C7.
On Mon, Feb 01, 2016 at 06:23:26PM -0500, Mark LaPierre wrote:
Mark:
You'll note that the 9800GT is listed there, too. nevertheless it isn't supported. I was told that current GPU software required a Nividia Fermi or later GPU, which leaves out the entire 9xxx series. See
http://nouveau.freedesktop.org/wiki/CodeNames/
Re upgrading to C7, I can see how you may be nervous about that, given the number of things changed. I just upgraded my personal desktop during Christmas week, seeing as how I never rush into upgrading to a new version until it has had time to "settle". There are a lot of differences, but i'm learning to deal with them. When my old system gets old enough that a lot of newer stuff will no longer build, then it's time for me to do the deed. then all I have to do is steel myself up for a week of putting it all back together. :)
good luck, Mark!
Fred
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Fred Smith -
Mark LaPierre