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other:newppl:starting [2023/03/08 16:33] jypeter [Available servers] Updated ciclad=>spirit |
other:newppl:starting [2023/08/11 14:02] jypeter [The home directory] Added link to emacs page |
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==== Available servers ==== | ==== 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. | + | * **The LSCE //gateway//**: ''ssh1.lsce.ipsl.fr'' |
- | * <wrap hi>Never forget that you are sharing these servers with other users!</wrap> | + | * Use ''ssh ssh1.lsce.ipsl.fr'' when you are **outside the LSCE wired network**, before accessing any other LSCE server: |
- | * <wrap hi>Do not use too much CPU and/or memory for a long time</wrap>. Heavy computation should be done on the [[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|LSCE cluster]] | + | * By **//outside LSCE//**, we mean that your computer is: |
+ | * connected to the LSCE WiFi network (instead of the wired network) | ||
+ | * or physically outside LSCE | ||
+ | * You can also use ''ssh1'' when you are **copying files to/from outside LSCE** with ''scp'' or ssh-based tools | ||
+ | * <wrap hi>The ''ssh1'' gateway can **only** be used for copying files or accessing the LSCE interactive servers</wrap>! | ||
+ | * **You have to** connect to an ''obelix//NN//'' interactive server before doing any real work | ||
+ | |||
+ | * **The LSCE interactive servers**: ''obelix//NN//'' (''obelix2'' to ''obelix5'') | ||
+ | * Use ''ssh obelix'' to access the LSCE servers from **inside LSCE**.\\ The //load balancing// system will send you to the ''obelix//NN//'' server that has currently the smallest load. | ||
+ | * By **//inside LSCE//**, we mean that: | ||
+ | * your computer is connected to the LSCE **wired** network | ||
+ | * or you are using the [[https://intranet.lsce.ipsl.fr/informatique/fr/vpn-forticlient.php#vpnlsce|LSCE VPN]] | ||
+ | * or you have a //terminal// connected to the ''ssh1'' gateway | ||
+ | * <wrap hi>Never forget that you are **sharing** these interactive servers with other users!</wrap> | ||
+ | * <wrap hi>Do not use too much CPU and/or memory for a long time</wrap>. Heavy computation should be done on the [[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|LSCE cluster]] | ||
* Learn how to [[other:newppl:starting#determining_the_load_of_a_linux_server|use the top command]] to determine the current load of a server and the CPU/memory usage of your processes ! | * Learn how to [[other:newppl:starting#determining_the_load_of_a_linux_server|use the top command]] to determine the current load of a server and the CPU/memory usage of your processes ! | ||
- | * <code>$ ssh obelix | + | * You can use one of the following commands if you want to know on which ''obelixNN'' you are |
+ | * <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 | ||
$ echo $HOST | $ echo $HOST | ||
obelix5 | obelix5 | ||
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obelix5</code> | obelix5</code> | ||
- | * **[[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|The LSCE cluster]]** (aka the //batch system//)\\ Use this cluster for really heavy duty programs, rather than killing the multi-users interactive servers | + | * **[[https://intranet.lsce.ipsl.fr/informatique/en/calcul/batch.php|The LSCE cluster]]** (aka the //batch system//)\\ Use this cluster for **//heavy duty// programs**, rather than killing the multi-users interactive servers |
+ | * //Heavy duty// programs are programs that will prevent other users from working on the same server because these programs use a lot of CPU and/or memory for more than a few minutes. Ask your advisor, if you are not sure | ||
* **The [[https://documentations.ipsl.fr/spirit/|IPSL Computing and Data Center]]**, aka //Mésocentre ESPRI// (''Spirit'' / ''SpiritX'' / ''HAL'') | * **The [[https://documentations.ipsl.fr/spirit/|IPSL Computing and Data Center]]**, aka //Mésocentre ESPRI// (''Spirit'' / ''SpiritX'' / ''HAL'') | ||
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* tcsh shell users: ''.cshrc'' and ''.login'' | * tcsh shell users: ''.cshrc'' and ''.login'' | ||
* bash shell users: ''.profile'' and ''.bashrc'' | * bash shell users: ''.profile'' and ''.bashrc'' | ||
- | * emacs text editor: ''.emacs'' | + | * [[other:emacs_doc|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 by default | * At LSCE, you can't read the content of somebody else's //home// directory by default |