Forum > GPU crunching

x38g reports

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perryjay:
No, sorry, I just found it on my tasks page.

Jason G:

--- Quote from: perryjay on 18 Jul 2011, 01:01:45 pm ---No, sorry, I just found it on my tasks page.

--- End quote ---

Grab a copy while it's still there. 
http://boinc2.ssl.berkeley.edu/sah/download_fanout/a4/08mr11ai.9455.10865.12.10.23

I'll get some easy up to date bench setup organised tomorrow or so, and also run here to see if 8 pulses turn up that shouldn't, and manually see how close they are to threshold.

Jason

Raistmer:
http://setiathome.berkeley.edu/forum_thread.php?id=64837&nowrap=true#1129324 Is it known behavior? x38g works slower on 26x.xx drivers indeed?

Jason G:

--- Quote from: Raistmer on 18 Jul 2011, 02:34:54 pm ---http://setiathome.berkeley.edu/forum_thread.php?id=64837&nowrap=true#1129324 Is it known behavior? x38g works slower on 26x.xx drivers indeed?

--- End quote ---

The 275 drivers are a bit better with some kernels as I gradually apply some of the newer techniques.  That will apply to different cards to different degrees, so it becomes a your mileage may vary issue as usual, until more of the kernels get 'upgraded' and full asynch operation is enabled down the line.

[Edit:] like with perryjay's 8xtra pulses I just finished benching, the gradual accumulation of improvements adds up to quite a lot, under 275.50 beta, that I don't even care what old drivers do anymore....


--- Quote ---Quick timetable

WU : 8XtraPulses_08mr11ai.9455.10865.12.10.23.wu
Lunatics_x32f_win32_cuda30_preview.exe :
  Elapsed 494.422 secs
      CPU 77.423 secs
Lunatics_x39f_win32_cuda32.exe :
  Elapsed 407.459 secs, speedup: 17.59%  ratio: 1.21
      CPU 53.430 secs, speedup: 30.99%  ratio: 1.45
--- End quote ---

Still investigating this particular task to see if perryjay broke it, or something else is going on....

[Edit2:] Bad news perryjay  :(  You broke that one somehow... I get agreement with your wingmen under bench:

--- Quote ---Spike count:    0
Pulse count:    0
Triplet count:  0
Gaussian count: 0
--- End quote ---

Now we just have to figure out what could have gone wrong with yours....

Ghost0210:

--- Quote from: Raistmer on 18 Jul 2011, 02:34:54 pm ---http://setiathome.berkeley.edu/forum_thread.php?id=64837&nowrap=true#1129324 Is it known behavior? x38g works slower on 26x.xx drivers indeed?

--- End quote ---

Yes, the x38 & x39 series are slower on the 267.xx drivers compared to the 275.50 drivers by some margin.
I can do a shortie in ~250 seconds on the 275.50 drivers, but this shoots up to around 290-300 seconds on the 267.xx drivers

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