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Number crunching :
Need help - Seti v8 MB units running forever
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Eric B Send message Joined: 9 Mar 00 Posts: 88 Credit: 168,875,085 RAC: 762 |
SETI@home preferences | Should SETI@home show your computers on its web site? Got it! Thanks! they are visible now. |
Eric B Send message Joined: 9 Mar 00 Posts: 88 Credit: 168,875,085 RAC: 762 |
I think this looks just like the good old stuck in benchmarks bug. I just unhid them, the troubled machine is erb1 the others seem fine |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I tried an experiment this afternoon and installed the Lunatics V8 MB executable just to see if that was going to have the same issue - and so far it hasn't. Of course its going to take several days to see this is really working but it looks promising after 6 hours or so on lunatics. One thing i do notice with lunatics tho and maybe its nothing but the estimated total time per work unit seems high most are 5 hours plus and some are 14 and a few are around 2 hours. Switching to anonymous platform means the server has to relearn how long it takes to complete tasks for the application. It also happens when switching to a new application like the change from SETI@home v7 to SETI@home v8. After about 10-11 completed tasks you will see the estimated time for newly received tasks will be lower and lower until it is accurate. I would guess the 5 and 2 hour tasks are probably VHAR tasks or the the 14 hour ones are VLAR tasks. 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 |
And the lunatics version does not do function choice benchmarking meaning you got rid of the bug. 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 noticed your host 7011730 that was having the issue looks to be running an older OS, Linux 3.11.10, than your two other machines. Which have Linux 4.1.2 & Linux 4.4.3. Possibly an older lib somewhere mucking up the works for the stock app? SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
Eric B Send message Joined: 9 Mar 00 Posts: 88 Credit: 168,875,085 RAC: 762 |
I tried an experiment this afternoon and installed the Lunatics V8 MB executable just to see if that was going to have the same issue - and so far it hasn't. Of course its going to take several days to see this is really working but it looks promising after 6 hours or so on lunatics. One thing i do notice with lunatics tho and maybe its nothing but the estimated total time per work unit seems high most are 5 hours plus and some are 14 and a few are around 2 hours. Yup, you are right, after 12 hours or so the estimated times dropped down to the normal 2.5 hrs I used to see. good to understand that now - tahnks |
Eric B Send message Joined: 9 Mar 00 Posts: 88 Credit: 168,875,085 RAC: 762 |
I noticed your host 7011730 that was having the issue looks to be running an older OS, Linux 3.11.10, than your two other machines. Which have Linux 4.1.2 & Linux 4.4.3. The normal kernel for OpenSuse 13.1 is 3.11 In my case, I updated the kernel on those machines myself. I have a 4.4 kernel I'm working on as time permits and will be switching to that on erb1 at some point down the road. erb1 got rebuilt/reformatted about 10 months ago or so because it had been through too many upgrades and things were getting weird there, so I did a fresh 13.1 install. (I tried 13.2 at that time too but I didn't feel it was really ready for prime time so I reformatted and went back to 13.1) |
Eric B Send message Joined: 9 Mar 00 Posts: 88 Credit: 168,875,085 RAC: 762 |
Everything is working fine now with the lunatics binary - so it appears to be a bug in the official v8 MB software, wouldn't you say? Although, I don't understand why it doesn't affect other machines. Thanks for everyone's help with this issue - its much appreciated! |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
Everything is working fine now with the lunatics binary - so it appears to be a bug in the official v8 MB software, wouldn't you say? Although, I don't understand why it doesn't affect other machines. Either a bug or another limitation. As the error doesn't seems to occur with more recent distros. However a distro that is less than 3 years old I would expect to work. Unless there is a fault in something that requires being updated. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
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