other:newppl:starting
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| There should be an //Obelix// shortcut on the left side of your desktop. Double-click on it in order to open a window (e.g. with graphics) environment on one of the obelix servers. Each terminal you will open in this environment will run on the same obelix server. Use ssh to [[#which_linux_servers_should_you_use|connect another server]] | There should be an //Obelix// shortcut on the left side of your desktop. Double-click on it in order to open a window (e.g. with graphics) environment on one of the obelix servers. Each terminal you will open in this environment will run on the same obelix server. Use ssh to [[#which_linux_servers_should_you_use|connect another server]] | ||
| + | |||
| + | If there is not yet an //Obelix// shortcut, use the [[other:win7apps#setup|VcXsrv XLaunch]] program to create it | ||
| Note: you can also use [[other:win7apps#putty|Putty]] if you just need text windows, or [[other:win7apps#vcxsrv_windows_x_server|VcXsrv]] or [[other:win7apps#putty|Putty]]+[[other:win7apps#cygwin-x|Cygwin-X]] if you also need graphics | Note: you can also use [[other:win7apps#putty|Putty]] if you just need text windows, or [[other:win7apps#vcxsrv_windows_x_server|VcXsrv]] or [[other:win7apps#putty|Putty]]+[[other:win7apps#cygwin-x|Cygwin-X]] if you also need graphics | ||
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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 or Linux desktop (displaying pdf, images, using a text editor, ...), rather than directly on the servers. Never forget that **your local desktop has access to the remote disks on the Linux servers**. | + | There are lots of things you can do directly on your **local** Win7 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**. |
| - | Otherwise, use the appropriate Linux servers. The //load balancing// system will send you to the server that has currently the smallest load | + | Otherwise, **use the appropriate Linux servers**. The //load balancing// system will send you to the server that has currently the smallest load |
| - | * obelixN (''ssh obelix'', or ''ssh obelix.lscelb''): 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 cluster | + | * obelixN (''ssh obelix'', or ''ssh obelix.lscelb''): 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 |
| - | * [[https://intranet.lsce.ipsl.fr/informatique/en/orme/calcul/batch.php|the batch system]] (aka //obelix cluster//) for really heavy duty programs | + | * [[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 | * 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 | ||
| * asterixN (''ssh asterix'', or ''ssh asterix.lscelb''): some people may mention these servers, but they don't exist any more | * asterixN (''ssh asterix'', or ''ssh asterix.lscelb''): some people may mention these servers, but they don't exist any more | ||
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| * **Backup of the home directory on the LSCE servers**: YES! Every night | * **Backup of the home directory on the LSCE servers**: YES! Every night | ||
| - | * More details on the [[https://intranet.lsce.ipsl.fr/informatique/en/orme/nsr/index.php|backup system]] page | + | * More details on the [[https://intranet.lsce.ipsl.fr/informatique/en/nsr/index.php|backup system]] page |
| * Put the most important sources/scripts/data/papers in this directory | * Put the most important sources/scripts/data/papers in this directory | ||
| * Do not put temporary files, or big data files that are available somewhere else in this directory! | * Do not put temporary files, or big data files that are available somewhere else in this directory! | ||
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| * **Backup**: NO | * **Backup**: NO | ||
| * Use this directory for temporary and big data files | * Use this directory for temporary and big data files | ||
| - | * The files older than 6 months (and possibly older than 1 month) will be **automatically deleted** if there is not enough free space. See the [[https://intranet.lsce.ipsl.fr/informatique/en/orme/disques.php|Scratch area]] section for more details | + | * The files older than 6 months (and possibly older than 1 month) will be **automatically deleted** if there is not enough free space. See the [[https://intranet.lsce.ipsl.fr/informatique/en/disques.php|Scratch area]] section for more details on the retention policy |
| + | * In other words, the files are guaranteed to stay 1 month and possibly longer | ||
| * **Quota**: NO | * **Quota**: NO | ||
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| * **Location**: ''/home/some_project_name/your_lsce_login'' | * **Location**: ''/home/some_project_name/your_lsce_login'' | ||
| * Ask your advisor if you should use a specific project directory and the technical details about it | * Ask your advisor if you should use a specific project directory and the technical details about it | ||
| - | * Use this directory for storing the (big) data files that you can't store in the //home// directory, and should not store in the //scratch// directory | + | * Use this directory for storing the (big) data files that you can't store safely in the //scratch// directory, and should not store in the //scratch// directory |
| * **Backup**: ask your advisor | * **Backup**: ask your advisor | ||
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| Your Linux environment may sometimes stop working correctly because you have exceeded the allowed quota on your disks (check your quotas with ''quota -s''). You can use the following command to get the size of all the directories and files in the current directory, sorted by size: ''du -sh * | sort -rh'' | Your Linux environment may sometimes stop working correctly because you have exceeded the allowed quota on your disks (check your quotas with ''quota -s''). You can use the following command to get the size of all the directories and files in the current directory, sorted by size: ''du -sh * | sort -rh'' | ||
| + | |||
| + | <code>jypeter@obelix4 - ...jypeter - 46 >cd /home/scratch01/jypeter | ||
| + | /home/scratch01/jypeter | ||
| + | |||
| + | jypeter@obelix4 - ...jypeter - 47 >du -sh * | sort -rh | ||
| + | 58M GLAC1DHiceF26.nc | ||
| + | 47M dashboard | ||
| + | 44M GLAC1DdrainagePointerF26ka.nc | ||
| + | 15M octcdf | ||
| + | 12M 1901.nc | ||
| + | 3.2M cmake | ||
| + | ...</code> | ||
| ===== Useful documentation for beginners ===== | ===== Useful documentation for beginners ===== | ||
other/newppl/starting.txt · Last modified: 2024/04/24 12:37 by jypeter
