other:newppl:starting
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other:newppl:starting [2023/04/05 09:41] jypeter [Available servers] Improved the inside/outside LSCE servers definition |
other:newppl:starting [2023/04/05 13:37] jypeter [Available servers] Improved |
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| * **The LSCE //gateway//**: ''ssh1.lsce.ipsl.fr'' | * **The LSCE //gateway//**: ''ssh1.lsce.ipsl.fr'' | ||
| - | * Use ''ssh ssh1.lsce.ipsl.fr'' when you are **outside the LSCE wired network**, before accessing any other LSCE server:\\ By **//outside LSCE//**, we mean: | + | * Use ''ssh ssh1.lsce.ipsl.fr'' when you are **outside the LSCE wired network**, before accessing any other LSCE server: |
| - | * on the LSCE WiFi network | + | * By **//outside LSCE//**, we mean that your computer is: |
| - | * or physically outside LSCE | + | * 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 | * 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>! | * <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//'' | + | * **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. | + | * 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: | + | * By **//inside LSCE//**, we mean that: |
| - | * on the LSCE **wired** network | + | * your computer is connected to the LSCE **wired** network |
| - | * or on the ''ssh1'' gateway | + | * or you are using the [[https://intranet.lsce.ipsl.fr/informatique/fr/vpn-forticlient.php#vpnlsce|LSCE VPN]] |
| - | * <wrap hi>Never forget that you are sharing these servers with other users!</wrap> | + | * 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]] | * <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 | ||
| Line 213: | Line 216: | ||
| 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'') | ||
other/newppl/starting.txt · Last modified: 2024/07/02 10:22 by jypeter
