Forum > GPU crunching
Latest drivers (NVidia and ATI)
Questor:
I also had been running 2 tasks on the GTX470 using stcok app. After running the Lunatics app run for a day I have that alos happily running 2 tasks per GPU. (but not mixed with other project apps) Using the CUDA which came with the installer which says 3.0.14.
No repeat so far of the hung tasks and no -12s yet.
As you say, hat's off to the developers!
John.
_heinz:
Hi,
its no problem to running 4 tasks parallel on GTX470,
with latest unified installer.
change 0.5 to 0.25 does it
mine GTX470 in the V8-Xeon runs it already sucessful.
heinz
Questor:
--- Quote from: _heinz on 01 Sep 2010, 08:27:40 pm ---Hi,
its no problem to running 4 tasks parallel on GTX470,
with latest unified installer.
change 0.5 to 0.25 does it
mine GTX470 in the V8-Xeon runs it already sucessful.
heinz
--- End quote ---
What O/S are you using? I am using Win XP 32 & 64. I tried 3 tasks but the more you run in parallel the longer each one takes so it was less productive.
John.
_heinz:
--- Quote from: Questor on 02 Sep 2010, 04:36:24 am ---
--- Quote from: _heinz on 01 Sep 2010, 08:27:40 pm ---Hi,
its no problem to running 4 tasks parallel on GTX470,
with latest unified installer.
change 0.5 to 0.25 does it
mine GTX470 in the V8-Xeon runs it already sucessful.
heinz
--- End quote ---
What O/S are you using? I am using Win XP 32 & 64. I tried 3 tasks but the more you run in parallel the longer each one takes so it was less productive.
John.
--- End quote ---
OS Vista 64Bit Ultimate.
<count>0.25</count>
4 need ~38 - 40 min, that is 9,5- 10 min per wu(depending on ar)
___________________
<count>0.33</count>
3 need ~30 min, thats 10 min per wu(depending on ar), give a gpu load of 95 to 99 %
___________________
<count>0.5</count>
2 need still 12-16, 20-21min, 33-34 min,that is 6-8, 10, 17 min per wu(depending on ar), give a gpu load of 91-98%, memory controller load=43-54%
___________________
<count>1.0</count>
1 need 8-12 min, gpu load of ~68% memory controller load=34%
___________________
2 gives the min throughput time( ~8, 10, 17 min per wu, 180, 144, 84 wu's per day)
I will work now with 2 in parallel again, that seems the max output per day.
But throughput time is depending on ar, what sort of wu you get.
heinz
M_M:
Can someone compare how fast is GTX460 comparing to GTX275 and GTS250 for SETI crunching? Is it worth upgrading?
I'm thinking of upgrading GTX275 (power hungry monster, over 220W) to faster and more power efficient GTX460 (around 160W), which I also expect to be faster (in games, it should be around 50% faster, but how much is it in SETI does anyone know?)
As I understand, SETI application is currently poorly optimized for Fermi architecture, am I right?
Thanks.
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