COLLATZ
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#1 COLLATZ
At last a NVidia GPU project that those of us with lower spec Graphics cards can do! (As well as faster cards.)
A 8400GS can do these in around 2-3 hours, the 9800GT does them in 13 minutes.
You should get around 70-80 credits/WU.
http://boinc.thesonntags.com/collatz/
A 8400GS can do these in around 2-3 hours, the 9800GT does them in 13 minutes.
You should get around 70-80 credits/WU.
http://boinc.thesonntags.com/collatz/
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#3 When
I also might try it when I power up the hybrid nVidia, ATI machine.
Just need the KVM /sigh.
Just need the KVM /sigh.
#4 Re: When
jockmacmad2 wrote:I also might try it when I power up the hybrid nVidia, ATI machine.
Just need the KVM /sigh.
KVM or is it KW/h
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#5
lol both.
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#6
Hmm some varied timings here.
I7 920 at stock = 2hrs for a WU for 80 credits.
GTX-295 at stock = 12-15 mins for 80 credits
ATI 4850 at stock = approx. 2.5 hours .... running the 'Optimized' x64_cal app. This seems to run the 1.10 WU same as the CPU rather than the 1.11 on CUDA.
I7 920 at stock = 2hrs for a WU for 80 credits.
GTX-295 at stock = 12-15 mins for 80 credits
ATI 4850 at stock = approx. 2.5 hours .... running the 'Optimized' x64_cal app. This seems to run the 1.10 WU same as the CPU rather than the 1.11 on CUDA.
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#8
It sems Collatz has been down for a while and I have finished my stockpile of CUDA units. Just a meagre 133 sat waiting to be returned.
With this and Milkyway's go slow over the past 48 hours izzah suffering RACing pains.
Ahh well at least if its slow I dont feel so bad about being 4 GPUs down and an i7 outta action due to more gremlins killing a MB and 4850x2. At least the second 4850 is saved.
I need Rentakill to kill my Gremlins I think.
With this and Milkyway's go slow over the past 48 hours izzah suffering RACing pains.
Ahh well at least if its slow I dont feel so bad about being 4 GPUs down and an i7 outta action due to more gremlins killing a MB and 4850x2. At least the second 4850 is saved.
I need Rentakill to kill my Gremlins I think.
#9
One thing I did notice, one Collatz WU took about 12 min 45 sec on each of my gtx 260's with all CPU cores busy running WCG tasks. When I disabled all CPU tasks the time taken for the GTX260's to run a Collatz WU dropped to approx' 6 min 20 sec (if I remember rightly). By my very rough estimation this would give a fairly good return.
Has anybody else seen this ? It would seem that Collatz CUDA tasks are still very processor dependant
Has anybody else seen this ? It would seem that Collatz CUDA tasks are still very processor dependant
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#10
Is it the fact the CPU's are busy and therefore throttling the GPU or are ou suffering the GTX-260 speed issue where the actual GPU clocks get throttled I wonder.
I forget the location but somewhere on GPUGrid there is an explanation of the second and how to resolve it. But I'd guess in this case it might be the first.
I forget the location but somewhere on GPUGrid there is an explanation of the second and how to resolve it. But I'd guess in this case it might be the first.
#11
Jockmacmad2
Thanks for your feedback.
I had forgotten NVIDIA's old gem of effectively "speed stepping" to conserve power. But I am checking the clocks with GPU-Z and NVIDIA monitoring tool, and no change in clock speed showing.
I will look further into this just to prove to myself that clocks are not affected.
What had kicked this off was that I had notice a gain of maybe 5-10 % in my GPUGRID WU's when the GPU's had full use of the CPU's. This would more or less cover the credits lost by not running the WCG WU's. But there is a significant saving in power used by the CPU.....
Thanks for your feedback.
I had forgotten NVIDIA's old gem of effectively "speed stepping" to conserve power. But I am checking the clocks with GPU-Z and NVIDIA monitoring tool, and no change in clock speed showing.
I will look further into this just to prove to myself that clocks are not affected.
What had kicked this off was that I had notice a gain of maybe 5-10 % in my GPUGRID WU's when the GPU's had full use of the CPU's. This would more or less cover the credits lost by not running the WCG WU's. But there is a significant saving in power used by the CPU.....
#12
Yes, you can use Riva Tuner to force the clocks (and fans for that matter), but you also need to tell Riva that you are using a driver that is OK.
http://www.overclock.net/nvidia/423880- ... cking.html
Don't forget to set load on boot and one thing in the above article misses out is that to make sure you don't enter the driver version in Hex (little button marked 0xD/0xA when editing the registry)!
I'm still not convinced that it works, the clocks on my GTX260 under XP still seems skittish on Seti, while Collatz appears off-line, and for the life of me I can't run GPUGrid any more.
http://www.overclock.net/nvidia/423880- ... cking.html
Don't forget to set load on boot and one thing in the above article misses out is that to make sure you don't enter the driver version in Hex (little button marked 0xD/0xA when editing the registry)!
I'm still not convinced that it works, the clocks on my GTX260 under XP still seems skittish on Seti, while Collatz appears off-line, and for the life of me I can't run GPUGrid any more.
#14
.and for the life of me I can't run GPUGrid any more.
There appears to be an on going problem with some gtx 260's not running the new cuda 2.2 WU's. This is not something that I have experienced myself. Although my other machine with an 8800GT was failing all WU's until I reverted to the 185.16 driver (or there abouts ). The only problem the 8800GT has now is my eldest taking over for his on-line activities
I used Riva Tuner quite a bit in the past. It was usefull for switching on the "redundant" cores on my 7600GT. I know there are redundant cores on the GTX260 as it is effectively a crippled GTX280, but I think they are hardware disabled as opposed to software in the video card BIOS. Something else for me to dig into. It would be nice if they could be switched on
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#15
Is your 260 a 192 or 216 shader model?
Mine is a 192 and GPUGrid is a no no.
Mine is a 192 and GPUGrid is a no no.
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#18 From the Collatz site ....
The number with the most steps so far is 2,361,183,863,442,119,416,993 with 2,059 steps which has been confimed by the server. The two individuals who found the above number are Top Viking and Merlyn. Congrats!
#19 Re: From the Collatz site ....
jockmacmad2 wrote:The number with the most steps so far is 2,361,183,863,442,119,416,993 with 2,059 steps which has been confimed by the server. The two individuals who found the above number are Top Viking and Merlyn. Congrats!
WHAT!
I'm Famous or is it Infamous?
#22
Milkyway CUDA runs superb on the GTX260. Gives me a better return than GPUGRID. I would say about 38k on my pair of 260's a opposed to 32k for GPUGRID.Any rumours about when it may be back? My GTX260 will run dry overnight
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#24
Collatz seems to working okay except they aren't exporting Stats yet. Once they are some of us (such as me ) can expect a nice wee boost!
I've found the return to be similar to GPUGrid with the main advantage being that GPUGrid WUs seem to be awful prone to errors on all but my newest 260.
I've found the return to be similar to GPUGrid with the main advantage being that GPUGrid WUs seem to be awful prone to errors on all but my newest 260.
Willie the Megacruncher
#25
Overnight Collatz has upgraded to a new app that requires CUDA 2.3. It is also much faster hence they have reduced the credits awarded to existing WU's. My GTX260 was only earning around 60 credits per hour this morning:shock:
See the dramatic effect here: My Collatz in Temujin's stats
You should abort any pre-exisitng WU's. They will be re-issued on the new app.
The thread in the Collatz forum is over 100 posts long already and that's in less than a day!
http://boinc.thesonntags.com/collatz/fo ... .php?id=68
The new app running CUDA 2.3 requires upgraded drivers, minimum 190.38. I'm downloading 190.62 now, but also I'm worried. Last time I tried that on GPU Grid I encountered the Nvidia downclock bug and couldn't fix it.
/Edit
If upgrading from 185.xx etc, you need to reset the project to force download of a new cudart.dll.
It's running, I'll keep an eye on the downclocking.
/Edit #2
Holy crunchathon batman! The first WU completed with 785 credit for a little under 30 minutes wall time, that means 43k per day!
Still running at stock clock speed too....no downclocking yet
See the dramatic effect here: My Collatz in Temujin's stats
You should abort any pre-exisitng WU's. They will be re-issued on the new app.
The thread in the Collatz forum is over 100 posts long already and that's in less than a day!
http://boinc.thesonntags.com/collatz/fo ... .php?id=68
The new app running CUDA 2.3 requires upgraded drivers, minimum 190.38. I'm downloading 190.62 now, but also I'm worried. Last time I tried that on GPU Grid I encountered the Nvidia downclock bug and couldn't fix it.
/Edit
If upgrading from 185.xx etc, you need to reset the project to force download of a new cudart.dll.
It's running, I'll keep an eye on the downclocking.
/Edit #2
Holy crunchathon batman! The first WU completed with 785 credit for a little under 30 minutes wall time, that means 43k per day!
Still running at stock clock speed too....no downclocking yet
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#26
I've just recently (this week) started running Collatz. The reduction in credit I saw when I got in from work was frightening till I tried the new app for it. I was surprised that it ran OK on my 9800GT, as MWGPU tells me it isn't CUDA 2.3 compatible. Collatz is giving me 500+ credits for 35 mins on each WU. That's worth about 18k a day for me.
I can see a shortage of WUs on this project when word gets out!
Ian
I can see a shortage of WUs on this project when word gets out!
Ian
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#28
The Collatz Bonanza continues!
I've averaged 166K per day over the last week for Collatz! On NVidia & ATI alike it is superb.
I've averaged 166K per day over the last week for Collatz! On NVidia & ATI alike it is superb.
Willie the Megacruncher
#29 Errors on Collatz
I'm getting about a 30% fail on Collatz work units (CUDA 2.3), most fail within first minute or two, but some fail when almost completed. Has anybody else got this issue ?
Could be a driver issue, I'm using the latest NVIDIA drivers.
Could be a driver issue, I'm using the latest NVIDIA drivers.
#30 Sorted
I had a look on the Collatz forum, one suggested fix was a "reset" of the project, So I tried that and now its "jist like a boucht een". Not one failure since reset, and heaps of pending credits to come
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#31
Excellent. Resetting is always a good thing to try first- so much quicker and less risky than upgrading your drivers or client!
Willie the Megacruncher
#32 Collatz server down
Looks like the Collatz server is down, first noticed about ten minutes ago. Hope it comes back up soon
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#33 Re: Collatz server down
I certainly hope so - Collatz is our biggest project just now, providing 85% of our current credit!Looks like the Collatz server is down, first noticed about ten minutes ago. Hope it comes back up soon
Willie the Megacruncher
#34 Cllatz Back up
Back up again. Perhaps it was a service period ?
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#35
I got a problem with Collatz on one of my machines. Or should I say I have a problem with drivers. Keep getting the message that I need to upgrade my driver on the NVIDIA card. Only problem being that NVIDIA do not suport Windoze 2000. Anyone know hw to get round this, because at the moment, nothing will run on that computer GPU wise
#36
Looks like a change of OS is needed
You could always try Linux, or see if anybody has an old copy of XP etc that they no longer use.
Other than that I can't think of anything that would work. Windows 7 is on sale to students for £30, so if you know any students that may be able to help. All that is needed is a registered Uni' email address.
You could always try Linux, or see if anybody has an old copy of XP etc that they no longer use.
Other than that I can't think of anything that would work. Windows 7 is on sale to students for £30, so if you know any students that may be able to help. All that is needed is a registered Uni' email address.
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#38
NVidia don't officially have CUDA drivers for W2K but I always found that the WXP 32 bit ones worked fine in my, only recently retired, W2K cruncher.
Willie the Megacruncher
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#39
Thank you, managed to find an XP driver that worked, back crunching Collatz again :)Megacruncher wrote:NVidia don't officially have CUDA drivers for W2K but I always found that the WXP 32 bit ones worked fine in my, only recently retired, W2K cruncher.
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#41
Yep, Collatz has crashed and burned. I don't think it could stand the strain of all the ex-MW crunchers hitting it for tasks for their ATI cards.
Ian
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#43
The problems with Collatz were a triple whammy of basic instability, too many Milkyway refugees & their chief server-kicker going on holiday for 2 weeks.
He came back just as I was resigned to switching the nVidias to Seti and having the ATIs idle.
The credits are a trickle rether than a torrent so far but hopefully we will get a few million from it later today.
He came back just as I was resigned to switching the nVidias to Seti and having the ATIs idle.
The credits are a trickle rether than a torrent so far but hopefully we will get a few million from it later today.
Willie the Megacruncher
#45
Collatz is back up but you need a boinc restart
The power is back on, and the network is now up as well. For the next week or so, Collatz will be testing an alternate Internet provider. That means that the IP address has changed so you will need to restart your BOINC client in order to upload your results and get more work. I would appreciate any feedback as to how well the new connection is working or not working, whichever the case may be.