Message boards : Number crunching : Problems and Technical Issues with Rosetta@home
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rensie Send message Joined: 22 Jan 06 Posts: 3 Credit: 1,480,056 RAC: 0 |
Just to follow up, my primary rosetta cruncher has 6 tasks using 1.6gb of ram total. Looks like they got it figured out. |
robertmiles Send message Joined: 16 Jun 08 Posts: 1234 Credit: 14,338,560 RAC: 2,014 |
A new batch of work has been loaded up- hopefully these have their requirements set properly, and they won't error out in a matter of seconds either. I got 11 of them. 3 gave errors within seconds, with error messages that probably require access to the source code to interpret. 6 are running normally. The last two haven't started. At least that is better than mostly fast errors. |
Sid Celery Send message Joined: 11 Feb 08 Posts: 2141 Credit: 41,518,559 RAC: 10,612 |
Returning to my anecdote about a remote PC I have being unable to download any Rosetta tasks, so running its backup project, WCG, 24/7, my local laptop is also doing weird things. It refuses to run a particular Rosetta task, so it's running those it has room for - a combination of WCG and later Rosetta tasks, but only 3 on 4 cores. Now I know it's definitely happening, I've set NNT and suspended all running tasks except for the one problem Rosetta task. It still refuses to run, even as the only task. No tasks are running in my experiment! Finally got to the end of this. Last night I had 3 WCG tasks running (2 of which were Africa Rainfall project that use slightly more RAM, but in fact were only using 300Mb each) and my one weird Rosetta nip* task reporting "waiting for memory" on my 4-core laptop. Looking at my Event log, it was only when the last ARP was wrapping up that sufficient RAM was available for the Rosetta task to begin running. The last ARP task completed 3 minutes later and now the Rosetta task is the only task running. Looking at the task's properties, it's only using between 271Mb & 292Mb RAM, while earlier complaining that it needed something like 6.6Gb RAM to begin. I'm going to wait for completion before dragging any more tasks down. Hopefully there are some new tasks available to download at that time. The task in question is this one |
yo2020 Send message Joined: 2 Jan 21 Posts: 2 Credit: 111,170 RAC: 0 |
It seems the RAM problem is not yet solved. I just updated Rosetta now and got the same complaint about needing 6 GB of RAM and only having 3 GB. |
Sid Celery Send message Joined: 11 Feb 08 Posts: 2141 Credit: 41,518,559 RAC: 10,612 |
Returning to my anecdote about a remote PC I have being unable to download any Rosetta tasks, so running its backup project, WCG, 24/7, my local laptop is also doing weird things. It refuses to run a particular Rosetta task, so it's running those it has room for - a combination of WCG and later Rosetta tasks, but only 3 on 4 cores. Now I know it's definitely happening, I've set NNT and suspended all running tasks except for the one problem Rosetta task. It still refuses to run, even as the only task. No tasks are running in my experiment! With 30 minutes to go, I've allowed new tasks and 11have come down. Stage one successful. 3 of the new tasks attempt to start. Stage two successful. 2 of the new tasks are waiting for memory... Oh I'm going out for a while. When I return the older task will have completed and I'll see if the new tasks all run ok. The journey continues... |
Sid Celery Send message Joined: 11 Feb 08 Posts: 2141 Credit: 41,518,559 RAC: 10,612 |
Returning to my anecdote about a remote PC I have being unable to download any Rosetta tasks, so running its backup project, WCG, 24/7, my local laptop is also doing weird things. It refuses to run a particular Rosetta task, so it's running those it has room for - a combination of WCG and later Rosetta tasks, but only 3 on 4 cores. Now I know it's definitely happening, I've set NNT and suspended all running tasks except for the one problem Rosetta task. It still refuses to run, even as the only task. No tasks are running in my experiment! And the answer is... no. Still two new Rosetta tasks running and two more new ones waiting for memory... It seems we're a way from having a solution or correction |
Mr P Hucker Send message Joined: 12 Aug 06 Posts: 1600 Credit: 12,116,986 RAC: 9,863 |
It seems the RAM problem is not yet solved. I just updated Rosetta now and got the same complaint about needing 6 GB of RAM and only having 3 GB.It's not a problem, it's just some tasks needing more RAM. The bigger machines will take those, then you'll get smaller ones. I'm currently running 250-450MB ones, despite having machines with up to 64GB. The only thing they could do is put them in a seperate queue, so you can get smaller tasks for your smaller machine, without having to wait for the big ones to get out of the way. Maybe they didn't realise there were that many people with old machines. |
strombergFs Send message Joined: 18 Mar 21 Posts: 11 Credit: 150,490 RAC: 0 |
i also got some problems again with the 6gb ram minimum. After pressing several times Update i got again tasks for my C4s. Now 5 C4s are running. :-) The question i have is how often does Rosetta updates automatically and requests new tasks? If I would not have pressed update, i would have waited however time to get again tasks. Is there a possibility to tell Rosetta to update every 10mins or similar? My feeling is that managing Rosetta to use the computer close to 100% is a bit luck. Its a bit sad because i really want to help and i bought the C4s to run efficiently 100% around the clock. I do hope that in the near future there are again for many weeks and month enough tasks for <<1GB ram per task so that all the small computers can support Rosetta with their maximum performance. |
Sid Celery Send message Joined: 11 Feb 08 Posts: 2141 Credit: 41,518,559 RAC: 10,612 |
It seems the RAM problem is not yet solved. I just updated Rosetta now and got the same complaint about needing 6 GB of RAM and only having 3 GB.It's not a problem, it's just some tasks needing more RAM. The bigger machines will take those, then you'll get smaller ones. I'm currently running 250-450MB ones, despite having machines with up to 64GB. The only thing they could do is put them in a separate queue, so you can get smaller tasks for your smaller machine, without having to wait for the big ones to get out of the way. Maybe they didn't realise there were that many people with old machines. I wish that were true, but it isn't. I have a 4-core i3-8350K with 16Gb RAM and lots of disk space but it hasn't been able to download or run any Rosetta tasks - only WCG backup project tasks, of which it now has a dozen. While my main desktop 16-core 32Gb RAM hasn't had any problem. If things work, it's like no problem exists. If they don't, it's like nothing will fix it. |
robertmiles Send message Joined: 16 Jun 08 Posts: 1234 Credit: 14,338,560 RAC: 2,014 |
[snip] I wish that were true, but it isn't. Have you checked how much of the RAM is reserved for the operating system (Windows, Linux. etc.)? Have you checked your settings for have much RAM and how much disk space BOINC is allowed to use? |
mrhastyrib Send message Joined: 18 Feb 21 Posts: 90 Credit: 2,541,890 RAC: 0 |
Just to follow up, my primary rosetta cruncher has 6 tasks using 1.6gb of ram total. Looks like they got it figured out. Can I ask a dumb question? Why is it that we have to divine what "they" are doing by observing the vagaries of tasks and RAM? Isn't there a board or site somewhere that explains what "they" are doing when changes occur in the project that affect the donors in significant ways? |
Brian Nixon Send message Joined: 12 Apr 20 Posts: 293 Credit: 8,432,366 RAC: 0 |
The question i have is how often does Rosetta updates automatically and requests new tasks?It’s not a fixed interval. While the client is busy with work, it will not contact the server until it needs more work or has results to report. When it asks for work and does not receive any, the client will back off for ever-increasing lengths of time – up to 1½ days – before asking again. This is to prevent hundreds of thousands of hungry hosts hammering a server that has no work to send out. Is there a possibility to tell Rosetta to update every 10mins or similar?Anything you can do in the GUI can be scripted, so the short answer is yes – but it will needlessly burden the server, and should not be necessary. My feeling is that managing Rosetta to use the computer close to 100% is a bit luck.At the moment there is an element of luck in whether you get work for Rosetta, because overall there is only a very small amount of work that needs doing, and because some of the work units can only be sent to machines with large amounts of RAM and disk space. If those happen to be all that is available at the moment a smaller machine contacts the server, that machine will get nothing, and back off. You can leave machines running unattended 24×7; many people here have been doing it successfully for years. But it is not reasonable to expect any single project to have 100% uptime, or to need work doing 100% of the time. That is why it is recommended to attach to more than one project. |
Jim1348 Send message Joined: 19 Jan 06 Posts: 881 Credit: 52,257,545 RAC: 0 |
Can I ask a dumb question? Why is it that we have to divine what "they" are doing by observing the vagaries of tasks and RAM? Isn't there a board or site somewhere that explains what "they" are doing when changes occur in the project that affect the donors in significant ways?(1) You just plan for the worst case if you want to run all the work units. 1.5 GB/work unit should be enough memory. Disk space has never been a problem for me, and I don't know what the minimum is. (2) This is not a project for laptops, though people may run them. It needs several hours of run time per day, preferably 24/7. (3) "They" barely acknowledge your existence at all, except some thanks when a project is finished. If that is not your thing, there are other projects. |
Brian Nixon Send message Joined: 12 Apr 20 Posts: 293 Credit: 8,432,366 RAC: 0 |
Isn't there a board or site somewhere that explains what "they" are doing when changes occur in the project that affect the donors in significant ways?There is. You’re on it. But it seems that Rosetta@home has been so successful for so long that “they” no longer feel any need to come here. The supply of computing resources appears to be taken for granted. Researchers simply throw tasks over the wall; as far as we know they do something with the results afterwards. That a batch of work can get sent out configured in a way that cuts off a third of the project’s capacity, without anybody noticing or taking any corrective action even though the problem was instantly noticed and reported by participants, leaves it quite evident that nobody is actively monitoring this project. |
Sid Celery Send message Joined: 11 Feb 08 Posts: 2141 Credit: 41,518,559 RAC: 10,612 |
[snip] I'm sure you're right about both those things, but this is an unattended PC in a room close to where some building work has been done over 2 or 3 months and when I got to it last month it was so covered in cr*p the display no longer works, so I can neither check nor modify it. I'll bring it home with me when I visit next week and try to clean it out and resolve the problem when I can dedicate some proper time to it. It's running WCG just fine for now, so it's not the worst thing in the world. I'll get there eventually. Thanks for offering help. |
Grant (SSSF) Send message Joined: 28 Mar 20 Posts: 1725 Credit: 18,382,444 RAC: 19,446 |
Unless you have set it to use local settings, it will use whatever you have set in your account's Computing preferences section.[snip]I'm sure you're right about both those things, but this is an unattended PC in a room close to where some building work has been done over 2 or 3 months and when I got to it last month it was so covered in cr*p the display no longer works, so I can neither check nor modify it. Grant Darwin NT |
Grant (SSSF) Send message Joined: 28 Mar 20 Posts: 1725 Credit: 18,382,444 RAC: 19,446 |
It is a problem when a Work Unit says it it will need 6+GB of RAM, when it really only needs 300MB (or less), as that results in almost a third of the projects computing resources becoming unavailable.It seems the RAM problem is not yet solved. I just updated Rosetta now and got the same complaint about needing 6 GB of RAM and only having 3 GB.It's not a problem, it's just some tasks needing more RAM. Grant Darwin NT |
Grant (SSSF) Send message Joined: 28 Mar 20 Posts: 1725 Credit: 18,382,444 RAC: 19,446 |
And to add to the lack of new work, we had another group of Tasks that had many which crashed and burned in a matter of seconds. And those that didn't error out, only needed 3 hours to reach their end. No wonder that last batch of new work went so quickly. Grant Darwin NT |
Sid Celery Send message Joined: 11 Feb 08 Posts: 2141 Credit: 41,518,559 RAC: 10,612 |
Unless you have set it to use local settings, it will use whatever you have set in your account's Computing preferences section.[snip]I'm sure you're right about both those things, but this is an unattended PC in a room close to where some building work has been done over 2 or 3 months and when I got to it last month it was so covered in cr*p the display no longer works, so I can neither check nor modify it. Oh! That's a good idea. It does continue to attempt connections, so definitely worth a try. I have no idea whether I've set it to local or web preferences (probably local tbh) but I've now edited my web preferences both here and at WCG just in case. |
yo2020 Send message Joined: 2 Jan 21 Posts: 2 Credit: 111,170 RAC: 0 |
Isn't there a board or site somewhere that explains what "they" are doing when changes occur in the project that affect the donors in significant ways?There is. You’re on it. But it seems that Rosetta@home has been so successful for so long that “they” no longer feel any need to come here. The supply of computing resources appears to be taken for granted. Researchers simply throw tasks over the wall; as far as we know they do something with the results afterwards. That a batch of work can get sent out configured in a way that cuts off a third of the project’s capacity, without anybody noticing or taking any corrective action even though the problem was instantly noticed and reported by participants, leaves it quite evident that nobody is actively monitoring this project. Yeah, and now the queue is empty and nobody cares to give an explanation or at least say "yeah, we know, we're working on it". |
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Number crunching :
Problems and Technical Issues with Rosetta@home
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