Message boards :
Number crunching :
Did the work unit limit change?
Message board moderation
Author | Message |
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mr.mac52 Send message Joined: 18 Mar 03 Posts: 67 Credit: 245,882,461 RAC: 0 |
I noticed that my work unit numbers is above the 600 mark for the first time in a long time. I currently show 837 tasks in progress when my three systems are usually limited to 600. I just checked again and I'm at 900 tasks. What has changed or should I just keep my mouth shut??? John |
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
I noticed that my work unit numbers is above the 600 mark for the first time in a long time. I currently show 837 tasks in progress when my three systems are usually limited to 600. There was talk, and a changeset to change the limit to per GPU, ie 100 tasks per Nvidia GPU, 100 per ATI/AMD GPU, 100 per Intel GPU, looks as if it's in place, all three of your hosts have dual GPUs (from the same vendor), they all have just short of 300 tasks, wasn't quite expecting that, but it's a move in the right direction (If it works correctly), now we need to see a host with GPUs from multiple vendors. Claggy |
MikeN Send message Joined: 24 Jan 11 Posts: 319 Credit: 64,719,409 RAC: 85 |
That's probably why I cannot get any WUs at present, all the big hosts which were limited to 200 are grabbing them all. |
rob smith Send message Joined: 7 Mar 03 Posts: 22160 Credit: 416,307,556 RAC: 380 |
I'm getting HTTP errors, and the "crickets" have died after a massive initial splurge.... One of my crunchers was reporting about 600 "in progress", but this has dropped back to a more normal 200ish (and a rough count agrees with ~200) [edit to cure finger trouble] Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
My three Hosts have two cards a piece and they are still stuck below 200. |
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
I reenabled Intel GPU work fetch, and got my i5-3210M/GT650M/Intel_Graphics_HD4000 to ask for work, it now has 300 tasks, but they are a mix of CPU and Nvidia tasks, none for the Intel GPU, so probably a project side scheduler limit change, rather than a scheduler change that introduces limits per vendor. http://setiathome.berkeley.edu/results.php?hostid=7054027&offset=0&show_names=0&state=0&appid=0 Edit: I've reported this to the boinc_dev list, the changeset was: http://boinc.berkeley.edu/gitweb/?p=boinc-v2.git;a=commit;h=9889ee8fb64f52e145f889b8fb62c6004f293f0a scheduler: enforce GPU job limits separately for each GPU type Claggy |
Dave Stegner Send message Joined: 20 Oct 04 Posts: 540 Credit: 65,583,328 RAC: 27 |
Claggy, I have been meaning to ask someone. I recently started a new machine crunching: http://setiathome.berkeley.edu/show_host_detail.php?hostid=7272773 4 core i5. Is the limit per processor or per core? I am getting a limit of 100, which equates to about 5 days of AP. (5 hr*100/24) Seems like number of cores should be in the equation. TIA Dave |
Batter Up Send message Joined: 5 May 99 Posts: 1946 Credit: 24,860,347 RAC: 0 |
Seems like number of cores should be in the equation.Even a 12 processor i7-3970X takes a long time to crunch WU especially when processors have to be used to help the GPUs crunch AP unites. I never ran out of CPU but regulatory ran out of GPU work with the 200 limit. Before my meltdown I ran 8 GPUs. |
Dave Stegner Send message Joined: 20 Oct 04 Posts: 540 Credit: 65,583,328 RAC: 27 |
Don't run GPU CPU only. Seems like I should be able to get 10 days worth. Dave |
Batter Up Send message Joined: 5 May 99 Posts: 1946 Credit: 24,860,347 RAC: 0 |
Don't run GPU CPU only. Most people would be timing out tasks if they gave out more than 100 WU per CPU even very fast ones. Most people do this casually and don't pay much attention to their crunching. 10 days is a long time between connections for a serious cruncher. There were no complaints about running out of CPU work but many about GPU. |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
I reenabled Intel GPU work fetch, and got my i5-3210M/GT650M/Intel_Graphics_HD4000 to ask for work, it now has 300 tasks, but they are a mix of CPU and Nvidia tasks, none for the Intel GPU, Two of my Dual ATI Hosts have just gone above 200... http://setiathome.berkeley.edu/results.php?hostid=6796475 http://setiathome.berkeley.edu/results.php?hostid=6796479 The third one is an old host I'm currently reviving and seems to have scheduling issues, but it is receiving more GPU tasks... |
Dave Stegner Send message Joined: 20 Oct 04 Posts: 540 Credit: 65,583,328 RAC: 27 |
10 days is a long time between connections for a serious cruncher. I am not worried about time between connection, it is time between availability. Project has been very stable lately but, who knows. Dave |
Wedge009 Send message Joined: 3 Apr 99 Posts: 451 Credit: 431,396,357 RAC: 553 |
The change must have happened overnight for me. I noticed there was a bit of server down-time. I don't see any limit breaks on my hosts yet but I'll check again when I get back from work. Soli Deo Gloria |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
Don't run GPU CPU only. On my old i7-860 machines 100 AP tasks do work out to be something like an 8-9 day cache. My i5-4670 will run thought 100 in more like 5-6 days. I voiced my opinion about 100 CPU task limits several times. When running MB only on my large multi core system like my 24 core server. 100 tasks can be less than a days worth of work. Just like on some GPU's. My 24 core server & i7-860's just switch over to their backup projects when we do run out of work. So it isn't a huge deal anyway. If task limits per CPU socket were an option that would be nice, but I have since reconfigured BOINC to run 1 instance per NUMA node on my 24 core system. Which looks it may be better to do as well. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
I'm running a single host. It has 103 AP and 397 MB tasks in progress. The 1 CPU and 4 GPU's seems to equal 500 WU's. To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I reenabled Intel GPU work fetch, and got my i5-3210M/GT650M/Intel_Graphics_HD4000 to ask for work, it now has 300 tasks, but they are a mix of CPU and Nvidia tasks, none for the Intel GPU, Yeah something in a bit off. Just noticed my HTPC is up to 300 tasks in progress. Up from 200. Looks like even tho my ATI card is not asking for work it is being granted the limit for both cards. I am going to try sticking it in a venue that has "Use ATI GPU" disabled to see if it goes back down. The intended change is not what is occurring. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
juan BFP Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799 |
Apparently the finaly hear our prays and change the limits to 100 WU per GPU. |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
I'd like to know if this is permanent before I go swapping cards around. I think I can get 2 6850s and a 7750 to work in my Mac. But, I'd have to swap cards in 3 machines to arrive at that goal. I'm really getting tried of swapping cards... |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
Apparently the finaly hear our prays and change the limits to 100 WU per GPU. The change indicates that it should still be 100 tasks, but per GPU type. So If you can NVIDIA, ATI, & iGPU you could have 300 GPU tasks, but it is not working that way at present. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
rob smith Send message Joined: 7 Mar 03 Posts: 22160 Credit: 416,307,556 RAC: 380 |
I've just checked, and my cruncher with two GTX780s has 300 tasks, so it is per GPU. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
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