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1  Other / Beginners & Help / cudaminer settings for GTX 280 on: November 29, 2013, 08:59:20 PM
Well... I just cannot get my GTX 280 to go above 16 khash/s and would really appreciate some help considering I should get more out of it based on the GTX 260 results.

Autotuning doesn't come up with anything. When I use -D, it shows:

D:\Litecoin\cudaminer>cudaminer -D -o stratum+tcp://netcodepool.org:3333 -O user:pass

[2013-11-29 21:49:15] Starting Stratum on stratum+tcp://netcodepool.org:3333
[2013-11-29 21:49:15] 1 miner threads started, using 'scrypt' algorithm.
[2013-11-29 21:49:15] Binding thread 0 to cpu 0
[2013-11-29 21:49:15] Failed to get Stratum session id
[2013-11-29 21:49:15] Stratum difficulty set to 64
[2013-11-29 21:49:15] DEBUG: job_id='6d14' extranonce2=00000000 ntime=5298fdb3
[2013-11-29 21:49:15] Stratum detected new block
[2013-11-29 21:49:16] GPU #0: GeForce GTX 280 with compute capability 1.3
[2013-11-29 21:49:16] GPU #0: interactive: 1, tex-cache: 0 , single-alloc: 0
[2013-11-29 21:49:17] GPU #0: Performing auto-tuning (Patience...)
[2013-11-29 21:49:17]        x1    x2    x3
[2013-11-29 21:49:17]   1:     |     |      kH/s
[2013-11-29 21:49:17]   2:     |     |      kH/s
<cut>
[2013-11-29 21:49:17] 232:     |     |      kH/s
[2013-11-29 21:49:17] 233:     |     |      kH/s
[2013-11-29 21:49:17] GPU #0:    0.00 khash/s with configuration L0x0
[2013-11-29 21:49:17] GPU #0: using launch configuration L0x0

And then cudaminer crashes.

And I tried some manual settings like
-l 27x3
-l 54x3
But the end result is always the same; "result does not validate on CPU!"

What does work is
-l F27x3
-l K54x3
But the rate does not go above 16 khash/s
And I really do not know what kernel to use.. S, L, K, F,..?
The known GTX 260 setting
-l S27x3
Will then show:  "using launch configuration K27x3" with the same (slow) result.

Any help is appreciated!  Smiley

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