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Number crunching :
Little work, yet the most "important" thing in the world?
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Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
As has been posted many times here over the years, the climate model codes belong to the UK Met Office. The researchers from various places around the world just use what is available. And they can, and probably do, talk to the Oxford project people about it. Also, VMs are for the cruchers to create and use. |
Send message Joined: 9 Oct 20 Posts: 690 Credit: 4,391,754 RAC: 6,918 |
PeterI didn't call them stupid, why are you putting words into my mouth? I said if they insist on using Linux, they will have a long wait. Now please try to interpret English better in the future eh? |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
The researchers are perfectly aware of how long it will take. They're just not interested in using Windows. |
Send message Joined: 22 Feb 06 Posts: 487 Credit: 30,459,246 RAC: 6,553 |
The researchers are perfectly aware of how long it will take. As an idle thought but is it because there are free compilers for Linux but not for Windows? |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
It's mostly because they use Unix on main frame computers. |
Send message Joined: 9 Oct 04 Posts: 81 Credit: 69,614,221 RAC: 12,129 |
For those with Win10 computers, I successfully installed WSL2 with Ubuntu on one of my Win10 computers:https://www.cpdn.org/results.php?hostid=1517859 After receiving the first Tickle everything looks very promising! I sincerely hope that some of the Win10 user community, who run their computer 24/7 might try as well, so the CPDN Linux WUs will get processed a little bit faster. I do not consider me a computer specialist; my knowledge is fairly limited with Windows as well as Linux. |
Send message Joined: 6 Oct 06 Posts: 204 Credit: 7,608,986 RAC: 0 |
Hardest part on installing CPDN under Linux was finding out, which packets are needed. Maybe some should write this on the starts page, right to the explanation how to install and run CPDN with Boinc. Edit: Found the following thread, maybe this could be linked on: https://www.cpdn.org/forum_thread.php?id=8916&postid=62038 Greets Felix __________________________________ The packets needed are given on the Linux Boinc download page. Boinc Wiki https://boinc.berkeley.edu/wiki/Installing_on_Linux Just Google up "BOINC Linux install" there are several places on the Boinc site itself. For all the other projects also. _________________________________ Talk about "Ants in the pants thingy" Peter, won't it be more fun to defenestrate a person? Please say yes. Anyway, things were very busy in Prague when this word was coined. |
Send message Joined: 9 Oct 20 Posts: 690 Credit: 4,391,754 RAC: 6,918 |
Hardest part on installing CPDN under Linux was finding out, which packets are needed. Maybe some should write this on the starts page, right to the explanation how to install and run CPDN with Boinc.Can it not be automated? I've never had to do anything other than "attach to project" on any of the projects I've ever run in Windows. Is it Linux that causes the difficulty, or CPDN? CPDN just works with Windows. No libraries to add etc. Talk about "Ants in the pants thingy"Yes it is more fun. My friend did it to his little brother when we were teenagers. From the 2nd story. Somehow no bones got broken. I've never tried it myself, although I have hospitalised someone. |
Send message Joined: 15 May 09 Posts: 4472 Credit: 18,443,356 RAC: 25,691 |
The 32bit libraries is not a problem unique to CPDN. It is an issue for a number of projects under Linux. With CPDN the issue is with something like a million lines of Fortran which has been compiled sorting out a 64bit version of programs from the met office without the source code or a license that allows mucking about with it even if we had the source is a far from trivial task even if the project had programmers with the necessary Fortran knowledge. Sorting it out for other projects some of which may have written their own code would I assume be easier, even if they haven't seen the need to do it yet. At some point there will probably be OpenIFS tasks for Linux and Mac which are 64bit and should, "just work." The ones which crashed during testing were problems with ancillary files as I understand it. That and file size limits being set too low in some cases. Then of course there is just the sheer complexity of climate modelling that means mistakes are more likely. Most get caught by the testing branch but not all. |
Send message Joined: 31 Aug 04 Posts: 391 Credit: 219,896,461 RAC: 649 |
It's mostly because they use Unix on main frame computers. Or on what they now call "supercomputers" |
Send message Joined: 31 Aug 04 Posts: 391 Credit: 219,896,461 RAC: 649 |
The 32bit libraries is not a problem unique to CPDN. It is an issue for a number of projects under Linux. With CPDN the issue is with something like a million lines of Fortran which has been compiled sorting out a 64bit version of programs from the met office without the source code or a license that allows mucking about with it even if we had the source is a far from trivial task even if the project had programmers with the necessary Fortran knowledge. I've learned a quick method, which not everyone will like, that has helped with me 2-3 recent linux installs, that gets all the 32-bit libs needed in a few seconds or minutes or even hours, depending on your internet download speed No finding the executables, no ldd-ing to find the libraries, no looking up past threads here. It's now part of my install procedure for linux users who want to do CPDN. But requires a bit of trust in winehq.org developers I don't know well. Just go to winehq.org and follow the instructions for downloading to your flavor of linux. There's an "dpkg --add-architecture i386" (for debian and ubuntu) a "download key && add key " and the the apt-install " . What reminded me that I've used this successfully for a few installs recently was the recent post here about wsl on Windows. Winehq is kind of an inverse to that (not precisely) . Anyhow, works for me, uses some disk, but I (almost never use wine anymore) have lostsa old slow disks HTH -- hope this workaround helps. er |
Send message Joined: 15 May 09 Posts: 4472 Credit: 18,443,356 RAC: 25,691 |
HTH -- hope this workaround helps. Thansk, may get a chance to try that at some point. I haven't used WINE since there was a surfeit of Linux tasks. When as was often the case in the past there was Windows work and nothing for Linux I used it a lot! |
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