Posts by Fardringle

1) Questions and Answers : Windows : Long run times on second GPU (Message 1352) Posted 28 Aug 2021 by Fardringle Post: nvidia-smi.exe says that both cards are being used. Not at 100%, but it wasn't ever 100% utilization with just the one card either. MSI Afterburner and GPU-Z also say that both cards are being used. So it is probably just the limit of the 4x PCIe slot, then. I wouldn't expect such an old card to be able to fully use even a 4X slot, but as you said this project moves a lot of data between the card and the CPU so I guess I'll just take what I can get out of the second card. These GPUs only use about 15 Watts under full load so it's not really wasting any power to have them running this way... I had my Quadro RTX 3000 running this project for a short time as well for testing. I can't do it full time since it's in a notebook computer and gets too hot. But I noticed that the GPU utilization, task times, and credits rewarded, were a LOT higher if I didn't let BOINC run any other projects (CPU or GPU) on the notebook at the same time. Even a 15-20% load on the CPU from something else dramatically reduced the performance of the MLC app. I don't see the same boost in utilization having the older i7 CPU idle in this PC, though. It probably just doesn't have the CPU power and RAM bandwidth to really make a difference. I'm not using this computer for anything else, and the K2200s are using such a small amount of electricity, so I'll just let them do whatever they can do. :)
2) Questions and Answers : Windows : Long run times on second GPU (Message 1350) Posted 28 Aug 2021 by Fardringle Post: I have an older computer that has been running MLC on an Nvidia Quadro K2200 for a while now. It's not a super powerful card, but it has been steady and reliable on the project, completing tasks in an average of about 1.75 hours. I got my hands on a second K2200 yesterday so I put it in the same machine in the second PCIe slot. BOINC registered the second card and immediately started running MLC tasks on it as well. However, while the first card is still finishing tasks in around 1.75 hours, the second card is taking more than twice as long to complete its tasks, with an average time of 4.06 hours so far. The computer has an i7-4790 CPU and 32GB of DDR3-12800 (1600mhz) RAM. The only difference between the two is that the second card is in a 4x slot and the first card is in a 16x slot. Is MLC so heavily bandwidth dependent that the slot speed would make that much of a difference even on really old, really slow graphics cards? This is the computer info page: https://www.mlcathome.org/mlcathome/show_host_detail.php?hostid=5191 And this is the computer's task list: https://www.mlcathome.org/mlcathome/results.php?hostid=5191&offset=0&show_names=0&state=4&appid=
3) Questions and Answers : Windows : Problems with Win 10 and NVidia 1080 (Message 1135) Posted 3 Apr 2021 by Fardringle Post: I switched back to running MLC after a while away. I wasn't getting any of the error messages mentioned here, but I was getting run time estimates of 10+ DAYS on my GTX 1060, so I reset the project and now it seems to be running properly. I spoke too soon. It did error out after running for nearly 10 hours. I guess I'll go back to running something else on the GPU for now... https://www.mlcathome.org/mlcathome/result.php?resultid=4604946
4) Questions and Answers : Windows : Problems with Win 10 and NVidia 1080 (Message 1134) Posted 3 Apr 2021 by Fardringle Post: I switched back to running MLC after a while away. I wasn't getting any of the error messages mentioned here, but I was getting run time estimates of 10+ DAYS on my GTX 1060, so I reset the project and now it seems to be running properly.
5) Questions and Answers : Issue Discussion : Not using all CPU cores (Message 103) Posted 5 Jul 2020 by Fardringle Post: I just restarted the system (again) and MLC is using all available cores now. No idea why it wasn't working right before..
6) Questions and Answers : Issue Discussion : Not using all CPU cores (Message 98) Posted 4 Jul 2020 by Fardringle Post: I have Linux Mint 19.3 running on a Ryzen 9 3900X (12 cores/24 threads). No other projects using the CPU, no restrictions in the BOINC client for CPU or RAM usage. The client has plenty of work, but no matter what I try it will not run more than 6 tasks/cores simultaneously. I can get it to run less than 6 by limiting the CPU usage to something less than 20% (just done for testing), but even at 100% CPU allowance it just won't do more than 6 at a time. If I let the BOINC client download work for other projects, it will happily make use of the remaining available cores on the CPU while the 6 MLC@Home tasks are still running. Is this an intentional limit of the project to only run 6 tasks at a time, or am I missing something? I haven't seen anything like this before except on projects that give the option to specifically limit the number of tasks that can be run. I don't see a setting like that available for this project.

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A project of the Cognition, Robotics, and Learning (CORAL) Lab at the University of Maryland, Baltimore County (UMBC)