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survival_guide

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survival_guide [2020/05/26 15:15]
ccrosby [Software Modules on Lengau] 		survival_guide [2022/02/01 18:38] (current)
alopis
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   - The computers that make up the HPC cluster do not run faster than a good desktop computer, nor do they usually have particularly impressive amounts of memory.  The performance comes from running many compute nodes in parallel.  If your application is not parallelised, it will not run faster at CHPC than on a good desktop machine.   - The computers that make up the HPC cluster do not run faster than a good desktop computer, nor do they usually have particularly impressive amounts of memory.  The performance comes from running many compute nodes in parallel.  If your application is not parallelised, it will not run faster at CHPC than on a good desktop machine.
   - The system is designed to be used in batch mode.  The user prepares a job, submits it to the queue, and the system executes it when the requested amount of resources become available.   - The system is designed to be used in batch mode.  The user prepares a job, submits it to the queue, and the system executes it when the requested amount of resources become available.
-  - You can request an interactive session, which will give you access to a compute node in the cluster.  Here you can compile programs, do pre- or post-processing, and check your job setup.+  - You can request an interactive session, which will give you access to a compute node in the cluster.  Here you can do quick tests or checks, compile programs, do pre- or post-processing, and check your job setup.
   - Access to the system is by means of secure-shell (ssh).   - Access to the system is by means of secure-shell (ssh).
   - Data can be copied to or from the system by means of secure copy (scp) or rsync.   - Data can be copied to or from the system by means of secure copy (scp) or rsync.
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   * **mkdir** - create a new directory   * **mkdir** - create a new directory
   * **cd** - change to a new directory   * **cd** - change to a new directory
 +  * **cp** - copy a file (remember to specify the file **and** the location to copy it to)
 +  * **mv** - move a file (either rename it or cut/paste it into a directory).
   * **rmdir** - remove a directory   * **rmdir** - remove a directory
   * **rm** - remove a file   * **rm** - remove a file
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 Here are examples of the most common module operations that you will need to use on the cluster: Here are examples of the most common module operations that you will need to use on the cluster:
   * **module avail** - To list all available packages   * **module avail** - To list all available packages
-  * **module avail 2>1 | grep //searchterm// ** will search through the modules for one containing the expression ''searchterm''.  Use the appropriate name of the software here.+  * **module avail 2>&1 | grep //searchterm// ** will search through the modules for one containing the expression ''searchterm''.  Use the appropriate name of the software here.
   * **module avail chpc** - List just the chpc modules group - this contains most of the useful modules   * **module avail chpc** - List just the chpc modules group - this contains most of the useful modules
   * **module avail chpc/earth** - This will list all the applications and libraries in the "earth" subgroup (reserved for earth-science applications).   * **module avail chpc/earth** - This will list all the applications and libraries in the "earth" subgroup (reserved for earth-science applications).
/app/dokuwiki/data/attic/survival_guide.1590498928.txt.gz · Last modified: 2021/12/09 16:42 (external edit)

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