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Number crunching :
Special App and Kepler Architecture
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Author | Message |
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J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
I picked up a GTX 690 for cheap, this is a dual GPU card i'm using on a old machine and when I tried to use the special app all the workloads failed with errors. Does the Special App support the older Kepler architecture? JP |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
No the special app requires CC capability of 5.0 and the GTX 690 only has 3.0 CC capability. https://developer.nvidia.com/cuda-gpus Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
oh darn, I was hoping I found some cheap GPU's that would perform well. :/ They sure do beat the two GTs 8800's I had in there though lol |
rob smith Send message Joined: 7 Mar 03 Posts: 22199 Credit: 416,307,556 RAC: 380 |
...at a price on the energy bill :-( Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
Power usage for GTX 690 115 watts +/- some, but add 2,3,4 cards and it'll add up fast. A GTX1080 is around 175 watts +/- some, but the "Performance per Watt" appears to be better with the GTX1080 definitely. (loosely based on internet data) It would be interesting to actually graph and measure the power consumption side by side with the Avg Credits of each system. |
-= Vyper =- Send message Joined: 5 Sep 99 Posts: 1652 Credit: 1,065,191,981 RAC: 2,537 |
http://setiathome.berkeley.edu/show_host_detail.php?hostid=8600449 2080Ti = 145000 Rac/day atm System with a 2080Ti that has got its power reduced to 185W max! No cpu work at all only GPU. _________________________________________________________________________ Addicted to SETI crunching! Founder of GPU Users Group |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
Power usage for GTX 690 115 watts +/- some, but add 2,3,4 cards and it'll add up fast. A GTX1080 is around 175 watts +/- some, but the "Performance per Watt" appears to be better with the GTX1080 definitely. (loosely based on internet data) the GTX 690 has a TDP of 300W, not sure where you got the 115w value from. it will absolutely use more power than a GTX 1080. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
Toms hardware is where they measured the power consumption that I looked at, I do not know if it's under full load - probably not, and it was measured under Windows. I would LOVE to buy 1080's and 2080's all day but the money those cost is not in my personal budget and this is for fun. It was replacing old 8800's and only $120 off eBay. It would be different if it was for crypto or something else that produced an income. https://www.tomshardware.com/reviews/geforce-gtx-690-benchmark,3193-14.html GTX 690 Dual GPU Engine Specs: 3072CUDA Cores. 915Base Clock (MHz) 1019Boost Clock (MHz) 234Texture Fill Rate (billion/sec) 6.0Memory Speed (Gbps) 4096 MB (2048 MB per GPU) GDDR5Standard Memory Config. 512-bit (256-bit per GPU)Memory Interface Width. 384Memory Bandwidth (GB/sec) |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
for $120, you could have bought a GTX 1060 3GB, which would use ~100w on SETI, and still be faster than the 690 since it can use the latest special app. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
Thanks again Keith for updating me on the Compute 3.0 of the older cards, Ill look for newer cars that are 5.0 compatible. I really like the dual GPU cards but the Titan Z is still pricey. JP |
-= Vyper =- Send message Joined: 5 Sep 99 Posts: 1652 Credit: 1,065,191,981 RAC: 2,537 |
Thanks again Keith for updating me on the Compute 3.0 of the older cards, Ill look for newer cars that are 5.0 compatible. I really like the dual GPU cards but the Titan Z is still pricey. Here also. https://en.wikipedia.org/wiki/CUDA#GPUs_supported _________________________________________________________________________ Addicted to SETI crunching! Founder of GPU Users Group |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
I looked at the 1060's but the cuda cores were only 1280 and the GTX 690 is a dual GPU with 3072 cuda cores and a 512 memory bus, I was unaware of the compute compatibility for the special app for the older card. CUDA Cores 1280 Graphics Clock (MHz) 1506 Processor Clock (MHz) 1708 Graphics Performance high-11048 |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
Thanks again Keith for updating me on the Compute 3.0 of the older cards, Ill look for newer cars that are 5.0 compatible. I really like the dual GPU cards but the Titan Z is still pricey. Thanks Viper, That will help for future purchases |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
I looked at the 1060's but the cuda cores were only 1280 and the GTX 690 is a dual GPU with 3072 cuda cores and a 512 memory bus, I was unaware of the compute compatibility for the special app for the older card. you can't compare raw cuda core count 1. across different architectures 2. when using different apps the Pascal architecture of the 10-series cards is 2 generations newer than Kepler, and is leaps and bounds more power efficient. the CUDA Special app by petri is much more optimized than the OpenCL apps that you'd be limited to using the 690. the special app is about 3x faster. a single 1060 can yield about 40-50k RAC. cuda counts aren't the whole story Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
I don't know where you got 115W for a GTX 690 as Nvidia rate it at 300W max draw. But then compare this rig with a 690 to this rig with 2x 1060's with both running Win7. One thing that I did notice is that there arn't as many GTX 690's around these days as there use to be. [edit] Nvidia rate the 1060's at 120W max draw, but mine rarely pull above 80W while crunching. Cheers. |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
from the link he posted, which showed the system power draw (not GPU only), but this was also at IDLE, ie, not doing anything but displaying a desktop. a little further down they have a graph of the system under load, showing ~400W. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
from the link he posted, which showed the system power draw (not GPU only), but this was also at IDLE, ie, not doing anything but displaying a desktop.My slow posting as I hit the reply button after Vyper's post so I missed a few posts in that time. ;-) Cheers. |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
I don't know where you got 115W for a GTX 690 as Nvidia rate it at 300W max draw. I just did a quick search for power consumption for the 690 and literally clicked the first link I saw, I was not concerned with power use as I was only planning on running a couple of these 690 cards at most. from the link he posted, which showed the system power draw (not GPU only), but this was also at IDLE, ie, not doing anything but displaying a desktop. Thanks Ian, I do realize now that at max power draw I could run more 1060's per power supply vs the 690's I was going to use. I'll certainly go another route now - |
J3P-0 Send message Joined: 1 Dec 11 Posts: 45 Credit: 25,258,781 RAC: 180 |
I looked at the 1060's but the cuda cores were only 1280 and the GTX 690 is a dual GPU with 3072 cuda cores and a 512 memory bus, I was unaware of the compute compatibility for the special app for the older card. I gotta ask Ian, are you really running 63 GPU's ? [63] NVIDIA GeForce GTX 1080 Ti (4095MB) driver: 410.66 |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
I looked at the 1060's but the cuda cores were only 1280 and the GTX 690 is a dual GPU with 3072 cuda cores and a 512 memory bus, Some things to keep in mind for future purchases. It's not just the number of cores, but the type of cores. There have been a lot of architectural improvements since the GTX 600 series. And even with a wider memory bus, dual GPUs on a single card tend to be at a disadvantage when it comes to memory bandwidth compared to a single GPU of the same type, even if it has a narrower memory bus (the memory bus on the GTX 690 is really 256bit. One 256 bit bus for each GPU= 512bit in marketing speak). And once again, there have ben considerable improvements over the years since the GTX 600 series came out. The GTX 690 is 2*GTX 680s, but with GTX 670 clock speeds. Looking at Shaggie's graphs, the GTX 1060 3GB puts out 400+ credits per hour (stock)- at 120W A GTX 680 around 300, so the GTX 690 would be around 600- at 300W This is with Windows on the SoG application. Running LINUX and the Special Application the GTX 1060 3GB would produce 3-4times as much credit, for 120W or less. (the GTX 1050Ti puts out the same amount of work as a GTX 680, but for less power. For the same power usage as 1 GTX 690, you could run 4 GTX 1050Tis and put out more than double the work). Shaggie's graphs show the work produced for the power used, the GTX 680 is one of the poorest performers (the GTX 690 would rate even lower). The GTX 1060 3GB is #10 in the top ten for efficiency (although it will eventually get bumped lower now the RTX 2060 has been released). A more recent card might cost a lot more upfront to buy, but it will cost a lot, lot less to run. Grant Darwin NT |
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