GTX 260 to GTX 295 and only got 2,000 more RAC?

I have been running this new card for 2 weeks now and only see 2k more RAC! What a waste of money! Can this be correct?

I went from 7,000 RAC to 9,000 RAC!

Bummed,
Aaron Lephart

www.smartcar451.com

So was this estimate of 14-14k RAC wrong?

http://setiathome.berkeley.edu/forum_thread.php?id=54386

All the best,
Aaron Lephart

www.smartcar451.com

When things are stable my GTX295 is good for about 8000 RAC ...
[...]
F.

pending credit page is still disable which is giving people false impressions about how much credit they are getting for work that is pending which they can't see. give it time and Patience!!!!

I would recommend following manual for GPU CUDA user.

I would let run per GPU* one CPU-Core idle. Because of the BOINC client [boinc.exe] which have sometimes big CPU peaks. (depend of your WU cache size)
Because of this all other under 'normal' are involved/disturbed - CPU and GPU tasks. It could be that the CPU support of the GPUs would be stop and then the GPU calculation make a break.

That's why I don't crunch on the CPU of my GPU cruncher.
1 CPU-Core for boinc.exe and 1 CPU-Core for 'System' (what ever this is in TaskManager). And if two CUDA tasks stop similar, the new CUDA tasks can be prepared simultaneously on the CPU without disturbing the other two GPUs.
If 4 CUDA WUs finish simultaneously.. two GPUs idle to the time the other two CUDA WUs are prepared on the CPU. The CPU preparation on my GPU cruncher is ~ 12 sec./CUDA WU.
(AMD Phenom II X4 940 BE @ 4 x 3.0** GHz with 4 x OCed GTX260-216)


[* with the nVIDIA GeForce GTX2xx series]
[** for now stock speed, without OC]

____________


>Das Deutsche Cafe. The German Cafe.<

When things are stable my GTX295 is good for about 8000 RAC ...
[...]
F.

Really? You let run the stock_CUDA_app or Raistmer's_CUDA_VLARkill_app?

One of my 4 OCed GTX260-216 make a ~ 8,000 RAC with Raistmer's latest app.

I don't hold with VLARkill so I rebrand them running the stock CUDA app. Can't overclock the GTX295 because of heat (at the moment it is 20% UNDERclocked but the figures were from when it was running at stock speed). Initial load of a CUDA WU to the GPU takes about 25 sec of CPU time but the rest of the time that CPU core is crunching a 603 (I don't see any point in leaving it idle for the rest of the ~10 minutes on a 0.4x AR CUDA WU).

F.

BTW.
If you don't want to let run CUDA_VLARkill_app.

Since short time the new CUDA_V12_app is available with and without VLARkill.

So your CPU preparation time would be ~ 50 % faster/shorter.

Also the GPU calculation would get a little booster.

In the Installer is the VLARkill_app.
But the nonVLARkill_app is available alone.
http://lunatics.kwsn.net/index.php?module=Downloads;catd=9

But you need also the CUDA_V2.2 (3 x .dll's) from the Installer.
So you could install in a temporary folder and take what you need.
I done it like this.. ;-)

____________


>Das Deutsche Cafe. The German Cafe.<

BTW.
If you don't want to let run CUDA_VLARkill_app.

Since short time the new CUDA_V12_app is available with and without VLARkill.

So your CPU preparation time would be ~ 50 % faster/shorter.

Also the GPU calculation would get a little booster.

In the Installer is the VLARkill_app.
But the nonVLARkill_app is available alone.
http://lunatics.kwsn.net/index.php?module=Downloads;catd=9

But you need also the CUDA_V2.2 (3 x .dll's) from the Installer.
So you could install in a temporary folder and take what you need.
I done it like this.. ;-)

Hi, CUDA enabled cards have 'extreme' computation way's (SSSE3) and very little 'other' things to do, except putting a few pixels on your screen .

They have enormous calculatin capabilies. But they are 'simple', like OpenGL and DIRECT X9/10.
In whitch, f.i. memory-faults, only show up, like a 'pixel' is NOT in place, not really something to worry about.

But when it's used to calculate certain calculations, it's possible that a fault can make an WU INvalidate.

Probably ONLY TESLA_CARDS/SYSTEMS are safe on the long run!

I don't mean to scare off people, who are running CUDA -Devices.
I think they can add a lot (of necessary) processing to the project.

____________


Knight Who Says Ni N!, OUT numbered.................

Probably ONLY TESLA_CARDS/SYSTEMS are safe on the long run!

Probably ONLY TESLA_CARDS/SYSTEMS are safe on the long run!


Could you please elaborate what has led you to draw this conclusion? Also, what exactly is different about the Tesla cards vs. Geforce cards?

P.S. On a side note, glanced at your hosts and wanted to ask if your X9650 was OC'ed?