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other:newppl:starting [2020/03/18 14:24] jypeter [Windows computer] Updated |
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===== Which Linux servers should you use? ===== | ===== Which Linux servers should you use? ===== | ||
- | There are lots of things you can do directly on your **local** Win7/Win10 or Linux desktop (displaying pdf, images, using a text editor, ...), rather than on the remote servers. Never forget that **your local desktop has access to the remote disks on the Linux servers**. | + | ==== Working directly on your desktop ==== |
- | Otherwise, **use the appropriate Linux servers**. The //load balancing// system will send you to the server that has currently the smallest load | + | Always remember that **your local LSCE desktop can [[#accessing_remote_disks|access remote disks on the LSCE servers]]**. |
- | * **obelix**//NN// (type ''ssh obelix'' to get there): never forget that you are sharing these servers with other users! Do not use too much CPU and memory for a long time. Heavy computation should be done on the obelix cluster | + | There are lots of things you can do directly on your **local** Windows 10 or Linux desktop (displaying pdf, images, using a text editor, ...), rather than on the remote servers. For example, if a script running on the servers generates a pdf file, it is more efficient to open this pdf file using ''Acrobat''/''evince'' on your desktop, than by using ''evince'' on the server. |
- | * <code> $ ssh obelix | + | |
+ | ==== Available servers ==== | ||
+ | |||
+ | * **The LSCE interactive servers**: ''obelix//NN//''. Use ''ssh obelix'' to access these servers, and the //load balancing// system will send you to the server that has currently the smallest load.\\ Never forget that you are sharing these servers with other users! Do not use too much CPU and/or memory for a long time. Heavy computation should be done on the obelix cluster | ||
+ | * <code>$ ssh obelix | ||
Last login: Mon Jun 3 08:49:53 2019 from somewhere | Last login: Mon Jun 3 08:49:53 2019 from somewhere | ||
# You can use one of the following commands if you want to know on which obelix you are | # You can use one of the following commands if you want to know on which obelix you are | ||
- | >echo $HOST | + | $ echo $HOST |
obelix5 | obelix5 | ||
- | >hostname | + | $ hostname |
obelix5</code> | obelix5</code> | ||
- | * [[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|the batch system]] (aka //obelix **cluster**//) for really heavy duty programs | + | |
- | * in some cases, you may need an account to use the [[http://mesocentre.ipsl.fr/|IPSL/ESPRI clusters]] (aka //ciclad// and //climserv//), especially if you need to use data that is already available/mirrored there, rather than copying the data to LSCE | + | * **[[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|The LSCE cluster]]** (aka the //batch system//). Use this for really heavy duty programs |
- | * //asterixN//: some people may mention these servers, but they don't exist any more! | + | * **[[http://mesocentre.ipsl.fr/|The ciclad and climserv servers]]**. In some cases, you may need an account to use the [[http://mesocentre.ipsl.fr/|IPSL/ESPRI clusters]], especially if you need to use data files that are already available/mirrored there (e.g. **''CMIPn'' data**), rather than copying the data to LSCE |
+ | * [[http://mesocentre.ipsl.fr/account-opening/|Requesting a new account]] | ||
+ | * **The ''asterix//N//'' servers**: some wise LSCE elders may mention these servers, but they don't exist any more! | ||
==== Which shell are you using? ==== | ==== Which shell are you using? ==== | ||
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==== Accessing remote disks ==== | ==== Accessing remote disks ==== | ||
- | It is possible to access directly all the disks on the LSCE servers from your local Linux or Windows desktop | + | It is possible to access directly all the disks on the LSCE servers from your //local// Linux or Windows computer\\ (//local// = a computer on the LSCE ethernet/wired network) |
* Example path on the LSCE Linux server: ''/home/scratch01/your_lsce_login'' | * Example path on the LSCE Linux server: ''/home/scratch01/your_lsce_login'' | ||
- | * Accessing the path above from a local desktop: | + | * Accessing the path above from a //local// computer: |
- | * Linux desktop: ''/home/scratch01/your_lsce_login'' | + | * Linux computer: ''/home/scratch01/your_lsce_login'' |
- | * Windows desktop: ''\\dfshost\dfs\scratch01\your_lsce_login''\\ {{ :other:newppl:dfs_on_win.png?nolink |}} | + | * Windows computer: ''\\dfshost\dfs\scratch01\your_lsce_login''\\ {{ :other:newppl:dfs_on_win.png?nolink |}} |
==== The home directory ==== | ==== The home directory ==== | ||
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* bash shell users: ''.profile'' and ''.bashrc'' | * bash shell users: ''.profile'' and ''.bashrc'' | ||
* emacs text editor: ''.emacs'' | * emacs text editor: ''.emacs'' | ||
- | * You can go to your home directory by typing ''cd'' (no arguments), and to the home directory of somebody else with ''cd ~login_name'' | + | * You can go to your home directory by typing ''cd'' (no arguments),\\ and to the home directory of somebody else with ''cd ~login_name'' |
- | * At LSCE, you can't read the content of somebody else's //home// directory | + | * At LSCE, you can't read the content of somebody else's //home// directory by default |
* **Backup of the home directory on the LSCE servers**: YES! Every night | * **Backup of the home directory on the LSCE servers**: YES! Every night |