11) Message boards : Number crunching : Help - Task 4.2 CUDA blocked (Message 26038)
Posted 4340 days ago by Paul Raney
Did you try aborting the old tasks and getting some new ones? I had some issues with the initial 4.2 work units but now everything appears to be working great.

Please let us know.
12) Message boards : Number crunching : Help - Task 4.2 CUDA blocked (Message 26032)
Posted 4340 days ago by Paul Raney
I am not running Linux but have a couple of ideas.

1. Are you using a custom BIOS to overclock your graphics card? If so, please use a standard BIOS and see if that corrects the issue.

2. Are you running multiple projects? If so, limit BOINC to 50% CPU utilization. If that works, let BOINC have 75% utilization. You may be starving the GPU.

3. Verify your driver version.

The 4.2 work units are new and we don't have much experience with them yet. You may want to abort them and get some new ones.

Good Luck and keep crunching
13) Message boards : News : New CUDA4.2 applications are out for Kepler GPUs (Message 26031)
Posted 4340 days ago by Paul Raney
I just check the GPUGrid computing preferences and noticed we still only have 3 queues, long, short and beta. It would be good to find a way to get 4.2 tasks exclusively to machines with the correct mix of hardware and drivers.

All of my cards are now optimized for 4.2 work units so when 3.1 work units hit my systems, they run a bit slower than in the past.

If the problem is a bug on the server, do we have an estimated time to repair?

So far it looks like we don't have a solution to the mixed work unit issue. Aborting 3.1 work units usually works but recently I aborted 2 of the 3.1 work units and received 2 more 3.1 work units.
14) Message boards : Number crunching : affordable/reliable 1600 watt psu plz. (Message 25958)
Posted 4342 days ago by Paul Raney
You can have many outlets on circuit. In most bedrooms, all of the outlets are on 1 circuit. Bathrooms and kitchens usually have more of a 1 circuit to outlet relationship. With a dedicated 20A circuit, you will have 1 outlet directly connected to a 20A breaker in the box. Using the 80% rule, you could draw 16AMPs on that circuit or (110V * 16AMPs) = 1760 Watts. You can draw more than that, up to a max of 2200 Watts but the breaker would trip at anything greater than 20AMPs.

Your breaker box is just a power distribution box. All of your power comes in on one line, a 220V line at around 200 AMPs. The breaker box splits this 220V feed into 2 110V feeds. In the US we typically call this 120 but it is usually more like 110V. You can also add double gang breakers that touch both 110V legs in the box to get 220V power for water heaters, ovens, stoves, dryers, etc.

If you overload a circuit, it will trip the breaker (no big deal, that is what the breaker is designed to do), just reset and try again. If it happens again, you have overloaded the circuit and you need to get that extension cord.

I have a Core 2 Quad over clocked by 50% + 2 GTX 580s overclocked to 962MHz and a 21" monitor on one outlet with no problems. You might be shocked to see just how much a singled 110V outlet will provide.
15) Message boards : Number crunching : Workaround for the "CUDA3.1 client sent to CUDA4.2 capable hosts" problem (Message 25945)
Posted 4343 days ago by Paul Raney
It sounds like all of you are receiving a combination of CUDA 3.1 and 4.2 tasks. I have the same issue. My real concern is that all of my cards are overclocked and CUDA 4.2 tasks may required a different hardware config that CUDA 3.1 tasks. It would be great to get only 4.2 work units going forward.
16) Message boards : Graphics cards (GPUs) : Cuda 4.2 WUs seem much faster than the old 3.1 (Message 25944)
Posted 4343 days ago by Paul Raney
My 570s appear to gain more than my 580s so CUDA 4.2 might help the lesser cards the most.
17) Message boards : Number crunching : ERROR: cufftExecC2R (gridcalc3) (Message 25917)
Posted 4344 days ago by Paul Raney
All:

I never saw this error and a quick search of the forms did not reveal anything.

Any idea what happened to this work unit?
[url]
http://www.gpugrid.net/result.php?resultid=5538265[/url]

I found some cuff errors in this forum: http://www.gpugrid.net/forum_thread.php?id=1398#12859
18) Message boards : Number crunching : Cuda 4.2 Queue (Message 25890)
Posted 4344 days ago by Paul Raney
Thank you. Sorry I missed this message.
19) Message boards : Number crunching : Overclocking with CUDA 4.2 (Message 25888)
Posted 4344 days ago by Paul Raney
We need a new thread for Overclocking for CUDA 4.2

If you have a successful overclock, please post your settings. Please include the card (GTX 570, 580, 670, 680), voltage, Core Clock and Memory.
20) Message boards : Number crunching : Cuda 4.2 Queue (Message 25885)
Posted 4344 days ago by Paul Raney
Is there any way to create a new queue for CUDA 4.2 work units? The GPU optimization for 4.2 is unique so it would be ideal to have a queue that only provides the 4.2 and higher work units.

I had 2 CUDA 4.2 work units fail and I would like to optimize for those work units only.


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