Posts by ivan

21) Message boards : Number crunching : Panic Mode On (100) Server Problems? (Message 1726955)
Posted 18 Sep 2015 by Profile ivan
Post:
setiathome_7.08_x86_64-pc-linux-gnu__opencl_nvidia_sah --

Wonder if there is an equivalent Windows release as well?

Not according to http://setiathome.berkeley.edu/apps.php , though there are some new Mac CPU apps as well.

I'd like to take a whack at it outside of Beta as well.

Hmm.. But you are right, anonymous platform will mean modification to try and get that app and executable...
22) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1726950)
Posted 18 Sep 2015 by Profile ivan
Post:
On my Windows 10 PC I see lots of data going up to CERN programs such as vLHC@home, Atlas@home and, especially, CMS-dev which is a Beta project.

Yeah, I'm still tuning that of course. We had a computing meeting today which was a bit more positive than earlier in the year. Things are probably going to change in the submission method, but I don't think the volunteers will see a difference -- I'm hoping it will make my part easier, though. I'm also starting to get some reaction to my plea for consistent jobs with minimal data return, just don't expect it Real Soon Now. I'm trying to retrieve recent data so that I can compare it with normal GRID jobs and report at a meeting at CERN next month. With a bit of luck I can get a publicly-available report out of it, which should please the volunteers.
(I realise this is more directed at CMS@Home, just reacting to tullio's comment.)
(As a consequence of my broadband woes, I can't run CatH at home myself -- not enough capacity. :-( )
23) Message boards : Number crunching : Panic Mode On (100) Server Problems? (Message 1726945)
Posted 18 Sep 2015 by Profile ivan
Post:
We-e-ll, I was just watching Great British Menu on iPlayer (my broadband is currently at 2268 kbps, just enough to watch 1280x720 HD) when it all stopped, even though gkrellm was showing the net flatlining at 248 kBps. Looked at BOINC and it was downloading shedloads of new jobs and a new executable. When the dust settled, there had been 91 new jobs and setiathome_7.08_x86_64-pc-linux-gnu__opencl_nvidia_sah -- so I guess that's out of beta. My RAC should go up, as I'd never got around to setting up the anonymous mechanism on this PC, so I've only had GPU work when there are AP jobs to be had. We shall see...
Can't check my full stats, though, with the replica being behind times.
Oh, and Matt beat Eve for the North-west crown once the judging was finished </spoiler>.
24) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1725440)
Posted 13 Sep 2015 by Profile ivan
Post:
I have BOINC 7.6.6 on my 4-core Windows 10 64-bit CPU. ATLAS@home sends me a maximum of 4 tasks, vLHC@home 2 tasks, CMS-dev 1 task. They all use Virtual Box, no GPU. When I allow the downloading of SETI@home tasks, I get about 27 of them, both CPU and GPU, so they overfill my CPU. GPU tasks are run one at the time, CPU tasks occupy one or two cores, leaving the other 2 to the CERN programs. but why does SETI@home sends me all those tasks? On my 32-bit Linux laptop I get a maximum of 2. I am running 4 CPU tasks plus one GPU task.
Tullio

That's a per-project setting. When I first started up CMS@Home-dev. Laurence hadn't set that, so for my 8-(hyper)core machine, the server sent me 18 or 19 tasks, presumably enough for 8 CPUs to process in the 2- or 3-day deadline he set for the tasks. Needless to say, trying to run 8 1-GB VMs on a 4 GB machine wasn't a pretty sight! So he introduced the limit of 1 job/machine. So basically, that's what S@H is doing, sending enough jobs to keep your machine busy for the duration you've set for cache -- up to the maximum of 100 CPU jobs per machine and 100 GPU jobs per GPU. The Linux laptop takes a fair while to process a MB (15 hrs) and even longer for an AP -- what cache duration have you set for it?
25) Message boards : Number crunching : Migration of BOINC within Linux Installations (Message 1722510)
Posted 5 Sep 2015 by Profile ivan
Post:
A couple of random thoughts, on posts so far:
o Mint is derived from Ubuntu, so there shouldn't be any problems with BOINC
o I learnt long ago to have (at least) three partition on a Linux machine; /, /home and swap. Then when you change/upgrade the OS everything goes into / and you don't touch /home so all your files are still there. You just need to add or modify your user on the new system to have /home/<user> as the home directory.
26) Message boards : News : Graduate student Lauren Weiss is searching for planets (Message 1722263)
Posted 4 Sep 2015 by Profile ivan
Post:
Will we ever be able to send satellites to other systems? If yes, can we get an educated guess on when it would be possible?

The nearest star system is 4 light-years away. Assuming we could send matter at light-speed, we couldn't expect a signal back for 8+ years. In practice you need to accelerate to speed, then decelerate to match velocity at destination. We need hyperdrive/wormholes/whatever before it's ever going to be feasible, normal propulsion systems won't cut it.
27) Message boards : Number crunching : Futher restrictions on when BOINC runs tasks... (Message 1720035)
Posted 29 Aug 2015 by Profile ivan
Post:
If it's like the Linux version (highly likely :-), just ./boinccmd on its own will give all the options. I've got lots of scripts to do all sorts of things (e.g. when communications were flaky I had a cron job run two or three times an hour to check for finished jobs to upload them) but some of them rely on other awk or python scripts as well. I also need to use the command line on systems where BOINC won't compile the GUI (boincmgr) due to missing or mismatched libraries.
28) Message boards : Number crunching : Cache filling strategy BOINC 7.4.42 vs. 7.6.6 and/or other improvements? (Message 1720030)
Posted 29 Aug 2015 by Profile ivan
Post:
Thanks again, so:

Never change a running system, don't dare to touch it, don't even think about it!

;)

You are mocking the Geek credo...

If it's working correctly, you must not be pushing it hard enough.

Ronald Regan: If it ain't broke, don't fix it.
USMC Engineers: If we can't fix it, it ain't broke!
29) Message boards : Number crunching : SETI/BOINC Milestones [ v2.0 ] - XXIX (Message 1719943)
Posted 29 Aug 2015 by Profile ivan
Post:
My work PC just passed 20 M credits.
30) Message boards : Number crunching : Two SETI@home screens (Message 1718248)
Posted 25 Aug 2015 by Profile ivan
Post:
I have the program set to display the work constantly. It almost seems frozen, with the same May 2 observation and the stats saying 100.0000% complete on the upper left. Only the graph on the bottom changes.
However, when my screensaver kicks in, there is a different observation each time, and the whole screen changes fast, including the upper left stats.
What are these two?

Which "view" are you using. You should almost certainly be using "Advanced View" rather than "Simple View" and you should never use the BOINC screensaver if you have the option -- it just takes CPU cycles away from the crunching.
31) Message boards : Number crunching : Cruncher won't connect to server (Message 1718053)
Posted 25 Aug 2015 by Profile ivan
Post:
Mac OS X v10.6
Use the following Terminal command to reset the DNS cache:
sudo dscacheutil -flushcache

https://support.apple.com/en-us/HT202516
https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/dscacheutil.1.html
32) Message boards : Number crunching : SETI/BOINC Milestones [ v2.0 ] - XXIX (Message 1717280)
Posted 23 Aug 2015 by Profile ivan
Post:
I wonder why ic-hep aren't in here crowing about their achievements? I'll have to ask next time I'm speaking to them. I could use that horsepower when I get CMS@Home running again!
33) Message boards : Number crunching : Download errors? [ RESOLVED! ] (Message 1717268)
Posted 23 Aug 2015 by Profile ivan
Post:
I was getting tons of download errors recently when one of the servers was down. Cleared up when it was brought back into service, but after the network reorganisation at Berkeley I also stopped BOINC and did a DNS cache flush where possible, and restarted.
34) Message boards : Number crunching : Corsair Graphite 600T (Message 1717267)
Posted 23 Aug 2015 by Profile ivan
Post:
Moved my System to the new cause.
Now it wont start. No beep nothing.
Is the. Case defekt?
No Manual
What is that USB connector for.
System panel switches have funny colours.
Shouldnt matter.
Anyone an idea What to try?

I suppose you've already got http://www.corsair.com/~/media/Corsair/download-files/manuals/49-000070_revAA_600T_QSG.pdf, which was all I could find on their web-site.
35) Message boards : Number crunching : CMS@Home needs about fifty good volunteers... (Message 1717265)
Posted 23 Aug 2015 by Profile ivan
Post:
I have a new set of jobs ready to submit, and be the basis of my comparison with standard GRID -- but I just can't submit them! BTW, we'll run out of recycled minimum-bias simulation jobs, probably sometime Saturday night, so if your CMS@Home-dev rigs subside into lethargy, feel free to revert to your backup projects.

Don't worry, I am running 6 projects and one or the other is often out of work. But I am running also CPDN tasks, which go on for months.
Tullio

Oh, I'm not particularly worried. Last week was incredibly hectic, with fault reports coming in faster than I could verify them. Luckily for me, Laurence et al. took most of the load. Now I've had confirmation from CRAB developers that the reason I can't submit jobs is that a new version of CRAB server isn't backward compatible with the patches used to enable CMS@Home (Hmm, I was told it used a plugin that the framework allowed for...) so there's nothing I can do until they get the time to come up with new code. I'm almost looking forward to getting back to working on simulations of the 2025 CMS Level-1 Track-Trigger this week. Almost... :-)
36) Message boards : Number crunching : CMS@Home needs about fifty good volunteers... (Message 1716732)
Posted 22 Aug 2015 by Profile ivan
Post:
Tja, we've run into multiple problems this week. But, that's what testing is about. I'd *hope* to get things working again by the weekend, but there are multiple issues to be addressed -- and as usual, key people are probably on August holidays. (Why can't people take summer holidays at Christmas, like the civilised world does? :-)

Unfortunately, although Laurence seems to have got all the logging and console displays working in time for the weekend, I've run into an as-yet unsolved problem in submitting new jobs -- the CRAB server reckons it can't gsissh into our Condor scheduler. Now, it was working on Tuesday... Have I changed anything since then? Well, yes, but nothing that should affect this AFAIK. If I'm awake enough later today I'll try to submit something from CERN rather than our local server; if it works I've screwed up something local, if it doesn't then someone else has messed up elsewhere. More likely there's some security reason I can't submit from CERN...
I have a new set of jobs ready to submit, and be the basis of my comparison with standard GRID -- but I just can't submit them! BTW, we'll run out of recycled minimum-bias simulation jobs, probably sometime Saturday night, so if your CMS@Home-dev rigs subside into lethargy, feel free to revert to your backup projects.
37) Message boards : Number crunching : CMS@Home needs about fifty good volunteers... (Message 1716151)
Posted 20 Aug 2015 by Profile ivan
Post:
Tja, we've run into multiple problems this week. But, that's what testing is about. I'd *hope* to get things working again by the weekend, but there are multiple issues to be addressed -- and as usual, key people are probably on August holidays. (Why can't people take summer holidays at Christmas, like the civilised world does? :-)
38) Message boards : Number crunching : CMS@Home needs about fifty good volunteers... (Message 1715315)
Posted 19 Aug 2015 by Profile ivan
Post:
Just to say here that my "challenge" will be delayed by a day or two. There have been some issues that need resolving, and I also haven't had time to come up with a workflow that's to my liking. So keep an eye out for the kickoff announcement, hopefully later this week.
39) Message boards : Number crunching : CMS@Home needs about fifty good volunteers... (Message 1714703)
Posted 17 Aug 2015 by Profile ivan
Post:
With VM's RAM increased to 4GB app still uses "low mem mode" (if I interprets that msg right):
* LHAPDF Version 5.9.1 *
* Configured for the following: *
* All PDFs *
* LOW MEMORY option *
* Maximum 1 concurrent set(s) *


But VM itself made use of additional RAM. 2,7G showed as used in top. Mostly for cache. Hope this would reduce disc activity from VM.

Interesting that this memory accounted in Windows task manager performance tab (used ~5GB of RAM total) but not attributed to any process on processes tab. So it's semi-invisible for Windows.

I believe that message is about a configuration option in the LHAPDF library, to limit the amount of memory used to store PDFs in memory (http://lhapdf.hepforge.org/lhapdf5/configure). [PDF = Parton Distribution Function, see https://en.wikipedia.org/wiki/Parton_(particle_physics) for example.]
40) Message boards : Number crunching : CMS@Home needs about fifty good volunteers... (Message 1714397)
Posted 17 Aug 2015 by Profile ivan
Post:
Question: I exited from top (pressing q) so how to re-run it w/o VM restart? Discovered console on Alt-F6 but don't know root password. Something interesting on Alt-F10 also.

Suspending task just paused VM, restarting BOINC resulted in taking VM's snapshot and then resuming from it. So, I returned into console w/o top again :/.

And now, with second job, job's log file doesn't get updates. So - blind run now. Maybe worth to open VM w/o BOINC and reboot it?

Yeah, I'm not sure about that, except to say "don't press Q!". Also, obviously, I'm not going to give out the password for logon indiscriminately.

Feel free to play around with the VM as you see fit, we're not in production yet and can afford to lose results to experimentation.


Previous 20 · Next 20


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.