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Send message Joined: 8 May 09 Posts: 3339 Credit: 524,010,781 RAC: 1 |
Yes I know, I have some new ram to put into a pc because it's got a combination of ram speeds in it now and the new stuff is faster than the slowest stuff but not as fast as the fastest stuff, and yes I know about them all running at the slowest speed that's why I bought the new stuff. I will spread the old ram out between my other pc's trying to keep speed in mind. I agree it's a pain in the butt |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
I agree it's a pain in the buttOnly if you leave the RAM on the chair and sit on it. Metal oxide semiconductor field effect transistor pins are much more painful though. The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 8 May 09 Posts: 3339 Credit: 524,010,781 RAC: 1 |
I agree it's a pain in the butt LOL |
Send message Joined: 20 May 21 Posts: 20 Credit: 2,161,895 RAC: 6,050 |
Lately, N-Body Simulation tasks com through using 9 CPUs on my computer. Will all future N-Body simulation tasks be using 9 CPUs? S. Gaber Oldsmar, FL |
Send message Joined: 22 May 11 Posts: 71 Credit: 5,685,114 RAC: 3 |
They will try to use all cores that are available. There should be app_config to change this behavior on page 2. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
They will try to use all cores that are available.With a limit of 16, which is annoying when you have 24. I had to change them to 12 to run 2. The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 13 Feb 23 Posts: 2 Credit: 15,890,720 RAC: 45,598 |
I just recently "upped" the utilization of my new computer's CPU. I have a 5995 Threadripper Pro with 64 core CPUs. Until today, I had run at a 50% CPU utilization. Currently I am running ~ 65-75% core utilization. I am nervously increasing the amount of CPU utilization. When I first downloaded BOINC to this new computer I ran it at almost 100% utilization and could barely get in to stop the program as it took over the computer. My question is this: How much CPU % utilization can I run without the BOINC program blocking me out and wreaking havoc? PS I was a longtime SETI & milky way BOINC utilizer, moving from 4 core to 7 cores. Thanks for any guidance. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
Depends on the project you're running and what OS you have and what else you're doing on the computer. I've got my 24 thread Ryzen 9 3900XT on 100% in Windows 11, it's also my main computer for browsing, email, and also has two security cameras on it which try to take 1 thread each. It's happy like that unless I run LHC, which uses Virtualbox and grinds things to a halt. I can still get in to pause Boinc, so it's not deadly, but I need to lower the usage for that project. I did this by telling it each task needed more than 1 thread in the app config file. You should just adjust it gradually until it annoys you, then back off a bit. The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 8 May 09 Posts: 3339 Credit: 524,010,781 RAC: 1 |
I just recently "upped" the utilization of my new computer's CPU. I have a 5995 Threadripper Pro with 64 core CPUs. Until today, I had run at a 50% CPU utilization. Currently I am running ~ 65-75% core utilization. I am nervously increasing the amount of CPU utilization. When I first downloaded BOINC to this new computer I ran it at almost 100% utilization and could barely get in to stop the program as it took over the computer. One other thing to look out for is the amount of memory each task uses as compared to the total amount of ram you have You can check that by going into the Boinc Manager and clicking properties on a running task, some types of tasks use alot more memory than others do, ie the EcmP2 tasks at Yoyo use about 8gb of ram for each task but the regular Ecm tasks use less than 250mb each. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
One other thing to look out for is the amount of memory each task uses as compared to the total amount of ram you have You can check that by going into the Boinc Manager and clicking properties on a running task, some types of tasks use a lot more memory than others do, ie the EcmP2 tasks at Yoyo use about 8gb of ram for each task but the regular Ecm tasks use less than 250mb each.And Boinc is pretty rubbish (as always) at working out how much RAM to use. You may have to reduce it from 100% to something less. The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 1 Dec 10 Posts: 82 Credit: 15,452,009,012 RAC: 0 |
I think https://foldingathome.org/ uses double precision. Folding@home uses single precision https://fahbench.github.io/details.html |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
Folding@home uses single precisionThis part is interesting: "Consumer GPUs are really bad at double precision calculations (so manufacturers can sell more expensive enterprise units to researchers)." Only one Boinc project has ever needed/used DP, Milkyway. Why? There are quite a lot of us with DP cards, the older cards like 280X, the posh ones like Radeon VII. The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 18 Nov 22 Posts: 84 Credit: 640,530,847 RAC: 0 |
Folding@home uses single precisionThis part is interesting: "Consumer GPUs are really bad at double precision calculations (so manufacturers can sell more expensive enterprise units to researchers)." or Titan V which is better than all of those. but Einstein uses DP also. and it is needed for the calculations, but it's only a small part of the overall computation (not 100% like MW) and they just coded the app in a way to revert that calculation to the CPU if the GPU doesn't support it. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
or Titan V which is better than all of those.What I meant was if they're making fast expensive DP cards for researchers, there must be a lot of programs they're using which utilise it fully like MW, or they'd just buy gaming cards. Why aren't we seeing fully DP apps in Boinc? MW did well with them. The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 18 Nov 22 Posts: 84 Credit: 640,530,847 RAC: 0 |
Because they don’t need the extra precision. And implementing it would ostracize a large portion of their user base, reduce a very large chunk of their overall processing power, and gain nothing in the quality of their science results. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
Because they don’t need the extra precision. And implementing it would ostracize a large portion of their user base, reduce a very large chunk of their overall processing power, and gain nothing in the quality of their science results.So what are researchers running on the pro cards and why isn't that sort of work done in Boinc? The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 18 Nov 22 Posts: 84 Credit: 640,530,847 RAC: 0 |
Because they don’t need the extra precision. And implementing it would ostracize a large portion of their user base, reduce a very large chunk of their overall processing power, and gain nothing in the quality of their science results.So what are researchers running on the pro cards and why isn't that sort of work done in Boinc? Ask them. |
Send message Joined: 5 Jul 11 Posts: 990 Credit: 376,143,149 RAC: 0 |
I don't know them, and they'll be too busy doing their research.Ask them.Because they don’t need the extra precision. And implementing it would ostracize a large portion of their user base, reduce a very large chunk of their overall processing power, and gain nothing in the quality of their science results.So what are researchers running on the pro cards and why isn't that sort of work done in Boinc? The above was double spaced between sentences, I apologise for the forum software ruining my post. |
Send message Joined: 18 Nov 22 Posts: 84 Credit: 640,530,847 RAC: 0 |
then i guess you'll never know. |
Send message Joined: 28 May 17 Posts: 76 Credit: 4,398,893,209 RAC: 22,519 |
I just recently "upped" the utilization of my new computer's CPU. I have a 5995 Threadripper Pro with 64 core CPUs. Until today, I had run at a 50% CPU utilization. Currently I am running ~ 65-75% core utilization. I am nervously increasing the amount of CPU utilization. When I first downloaded BOINC to this new computer I ran it at almost 100% utilization and could barely get in to stop the program as it took over the computer. It sounds like you don't have enough RAM in the system to use it fully for that project. Add more RAM and watch RAM utilization. A good rule to follow is having 1GB of RAM per thread. So you'll want at least 128GB of RAM for that 5995 TR Pro CPU. Just keep in mind, 1GB is a good rule of thumb, but not the end all. Some projects can and will use more than 1GB per task. 1GB is the bare minimum. I've recently been going with 2GB or 4GB per thread on my hosts due to the increase in memory foot prints at some projects that I run. |
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