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Send message Joined: 30 Apr 14 Posts: 67 Credit: 160,674,488 RAC: 0 |
IMHO your PC will still be saturated :) Current max of 80 tasks will require at least 10 minutes for your PC to crunch through :) If Jake will increase bundle sizes, this will be even easier to achieve. |
Send message Joined: 30 Apr 09 Posts: 101 Credit: 29,874,293 RAC: 0 |
BTW. AFAIK, Milkyway WUs could be created/send out if results come back. The results which come from the members PCs make it possible to create new WUs. This is different to other BOINC projects. |
Send message Joined: 22 Jan 08 Posts: 29 Credit: 242,730,423 RAC: 0 |
Just released the GPU version. It is a 32-bit application that works on 64 bit machines. Let me know if there are any issues. Well, first of all congratulations that you finally made it happen! The returned tasks validate as before the bundling efforts, i.e. many are instantly valid, a majority is inconclusive - but then shifted to the valid bucket (this behavior I never understood, by the way...). They should take about 5x longer than normal work units since you are crunching 5. In fact, a 280X requires 9 secs for a single WU. The 5x bundle completes in 38 secs which is quicker than 5-fold. Same with the 290X: 13 secs for a single task, 58 secs for a bundle of 5 tasks. So, the computation is certainly more time efficient. Moreover it is better for the GPU hardware, because it does not cool down and heat up as frequently as before but is kept on a rather constant operation temperature. Finally, I am unsure whether bundling of only 5 tasks will solve the DDoS-like attack issues on your server. You can easily increase the bundle size by another factor of 10 or even 100 and then disallow server contacts below a reasonable time threshold. But let's see. As soon as you find that the 'GPU people' run out of work again, you might want to increase the bundle size as suggested. And thanks again for taking our concerns serious. As a result, I am quite sure you will be flooded with new results. Michael. President of Rechenkraft.net e.V. - This planet's first and largest distributed computing organization. |
Send message Joined: 2 Oct 16 Posts: 167 Credit: 1,008,062,758 RAC: 1,016 |
Hey Everyone, I had a decent number of errors prior to the server update/bundling. I had checked some of the top users and I only saw errors on Linux machines. It seems like the errors have gone down, maybe due to bundling but the invalids have gone up. My PC with 280x with everything at stock. http://milkyway.cs.rpi.edu/milkyway/results.php?hostid=706926&offset=0&show_names=0&state=5&appid= |
Send message Joined: 30 Apr 14 Posts: 67 Credit: 160,674,488 RAC: 0 |
I see we have some rouge Hosts that wasted some work of my GPU. Here's one example: http://milkyway.cs.rpi.edu/milkyway/results.php?hostid=606779 About 20k invalid WU in a single day. I thought that BOINC was supposed to curb that one with "Number of tasks today", but it seems to be over 20k per day (?) :/ I have already PMed the owner. Jake, Could you look at this particular problem? With increased Bundle size this will become increasingly problematic. |
Send message Joined: 13 Feb 09 Posts: 51 Credit: 72,781,606 RAC: 1,415 |
I am currently running two machines: WinXP, AMD 64 X2 CPU, NVIDA GTX-750Ti GPU, two WUs per GPU Win10, AMD 7750 Dual Core CPU, NVIDA GT-730 GPU, two WUs per GPU Running Milkyway, Einstein and SETI GPU apps on both machines. On the XP machine, Milkyway WUs taking about 20 min of run time and using about 40% CPU. On the Win10 machine, Milkyway WUs taking about 30 min of run time and typically using less than 10% CPU time (fairly large variation in CPU time). Einstein and SETI WUs take 10% or less CPU time on both machines. I don't consider that running the current Milkyway WUs on my XP machine is an efficient use of the machine due to the high CPU usage, so I have discontinued running them until such that (or if...) a new version of the app is released that requires less CPU time. |
Send message Joined: 30 Apr 14 Posts: 67 Credit: 160,674,488 RAC: 0 |
On the XP machine, Milkyway WUs taking about 20 min of run time and using about 40% CPU. This is probably due to CPU/GPU combination. AMD 64 X2 CPU is 90nm, very old CPU (introduced in 2005/2006, newer versions 65nm from 2007/2008). AMD 7750 Dual Core CPU is from the same family, 65nm CPU from 2008. I have wrote about CPU/GPU profile analysis few posts earlier. Also GTX-750Ti nor GT-730 is especially efficient GPU for double precision work. It WILL be much more efficient in single precision work in Einstein@Home or on Seti@Home. I don't consider that running the current Milkyway WUs on my XP machine is an efficient use of the machine due to the high CPU usage, so I have discontinued running them until such that (or if...) a new version of the app is released that requires less CPU time. Using those GPU, MilkyWay@Home will probably never be more efficient than Einstein@Home or Seti@Home credits wise. If you wish to contribute to MW@H more I can suggest you some DP GPUs that will be efficient. |
Send message Joined: 2 Oct 16 Posts: 167 Credit: 1,008,062,758 RAC: 1,016 |
On the XP machine, Milkyway WUs taking about 20 min of run time and using about 40% CPU. To add onto that, my 280x at stock running MW outcredits my 970 and 1070 running E@H and they would do even worse running MW. The DP on the 280x just rocks MW WUs. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
BTW. This could be sorted by shortening the deadlines? |
Send message Joined: 27 Jul 14 Posts: 23 Credit: 921,261,826 RAC: 0 |
Please observe these work units. This is expected. https://milkyway.cs.rpi.edu/milkyway/result.php?resultid=1887793313 Name: de_modfit_fast_19_3s_136_bundle5_ModfitConstraints3 Run time: 20 min 41 sec Credit: 133.66 This is not expected. https://milkyway.cs.rpi.edu/milkyway/result.php?resultid=1887790878 Name: de_modfit_fast_19_3s_136_ModfitConstraints3 Run time: 4 min 5 sec Credit: 26.73 It appears there are some work units getting thru that are not bundled, but run 5x as long as an old single work unit and pay 1/5 as much. I have a handful of these. Team USA forum | Team USA page Always crunching / Always recruiting |
Send message Joined: 18 Jul 10 Posts: 76 Credit: 638,713,215 RAC: 54,898 |
Nick Name - The first task you have is bundled (5 "old" tasks), ran roughly 5 times longer than the second, and gave roughly 5 times more credit than the second. What was not expected? It is true that not all tasks being sent out are bundled. I have a few of those. |
Send message Joined: 27 Jul 14 Posts: 23 Credit: 921,261,826 RAC: 0 |
Nick Name - Thanks for your comment, I think I figured out what is happening. I was surprised to see some unbundled work units. The run time also surprised me, even taking into account the fact that I'm running six at once. That's why the bundled one I linked ran for 20 minutes. At first glance it seemed some tasks that should have been bundled, weren't, and were also running unusually long. I don't have many of these and haven't been at the computer to see one come thru. If I catch one I'll probably run it by itself just for peace of mind. Team USA forum | Team USA page Always crunching / Always recruiting |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
Please observe these work units. The times you quote look fine. The first took 5 times longer with 5 times the credit. Although they shouldn't be coming through I'll grant you that. |
Send message Joined: 30 Apr 14 Posts: 67 Credit: 160,674,488 RAC: 0 |
Please observe these work units. They're not bundled since they where first computed when bundle was not yet available. I believe this is expected that sometimes (1%-2%) WU will still be not-bundled. But this will disappear in few days totally. Check: https://milkyway.cs.rpi.edu/milkyway/workunit.php?wuid=1377085803 This is WU for this Task. First sent to MW@H 1.38 Client. |
Send message Joined: 27 Jul 14 Posts: 23 Credit: 921,261,826 RAC: 0 |
Thanks everyone. I caught an unbundled one and it processed at the (before bundle) normal rate, so it seems things are working as they should. Any extra time they take can be explained by the stop/start of the bundled work units running at the same time. Team USA forum | Team USA page Always crunching / Always recruiting |
Send message Joined: 6 Apr 13 Posts: 8 Credit: 215,367,305 RAC: 0 |
Everything seems to be running just fine at my end now. Thanks for the fast fix. Cheers |
Send message Joined: 4 Nov 12 Posts: 96 Credit: 251,528,484 RAC: 0 |
As I mentioned here. → http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=4058&postid=65850#65850 I like that it goes back to 0, knowing that it is running 5 WU in 1 in effect, to let me monitor the progress each WU package. Good job, guys. I'm looking forward to keeping an eye on these and seeing how well they work overall now. Cheers. |
Send message Joined: 13 Feb 09 Posts: 51 Credit: 72,781,606 RAC: 1,415 |
If you wish to contribute to MW@H more I can suggest you some DP GPUs that will be efficient. Like what? I have a 600W PSU on the XP machine but limited cooling. The Win10 machine is an HP slimline requireing a half-height boad and only has a 350W PSU. |
Send message Joined: 30 Apr 14 Posts: 67 Credit: 160,674,488 RAC: 0 |
Like what? I have a 600W PSU on the XP machine but limited cooling. The Win10 machine is an HP slimline requireing a half-height boad and only has a 350W PSU. For AMD/ATI Radeon 280/280X is still the best for DP. They're also quite cheap right now (around 150$? each) As for NVidia GeForce GTX Titan, and GeForce GTX Titan Black (from GeForce 700 Series), but they're extra costly - I believe more than 500$ each. In my place they're really unavailable. I saw some on UK eBay - 700 Pounds each... oh my eyes. Titan should be almost twice as effective per W in DP but in old MW@H performed a little worse than R280X per /s (so I assume that per W it's the same). See benchmark thread: https://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=3551&postid=64162#64162 In this thread it can be seen that really ANYTHING AMD/ATI is better than NVidia in terms of DP. For both, 600W PSU should be enough. |
Send message Joined: 4 Nov 12 Posts: 96 Credit: 251,528,484 RAC: 0 |
Updated to 6 MW@H 1.43 WU bundles running per GPU, 12 total. Also allocated more CPU headroom so WUs are finishing about 3:28 (88s) total. GPUs are loaded up to around 93%, VRAM up to around 3668MB (59% on SLIed Titan Black cards, so the memory usage is double from being mirrored between cards – expect roughly half this on independent cards). There can be significant CPU load spikes between individually bundled GPU tasks, even though the CPU tends to mostly idle. I've allocated up to 0.75 CPUs per GPU WU, leaving 33% of my 12 threaded CPU free. Loads: https://i.imgur.com/8wygOs6.png Config: https://i.imgur.com/SGKV9XD.png Still seems to be running great. |
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