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quick:start [2019/07/31 08:34]
ccrosby [Queues]
quick:start [2019/10/22 07:31] (current)
ccrosby [Transferring Data]
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 ====GPU nodes==== ====GPU nodes====
  
-There are 9 compute nodes that contain a total of 24 Nvidia V100 GPUs.  For more information see the [[guide:​gpu|GPU guide]].+There are 9 compute nodes that contain a total of 30 Nvidia V100 GPUs.  For more information see the [[guide:​gpu|GPU guide]].
 =====Logging in===== =====Logging in=====
  
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 subdirectory of your scratch directory ///​mnt/​lustre/​users/​yourusername///  ​ subdirectory of your scratch directory ///​mnt/​lustre/​users/​yourusername///  ​
 (where //​yourusername//​ is replaced by your user name on the CHPC cluster). (where //​yourusername//​ is replaced by your user name on the CHPC cluster).
 +
 +
 +=== Downloading files from other servers ===
 +You may need to download data from a server at another site.  Do not do this on ** //login2// **!  Use ** // scp.chpc.ac.za//​ ** for this purpose. ​ The easiest way of doing this is with the **wget** command:
 +
 +<​code>​
 +wget http://​someserver.someuni.ac.za/​pub/​somefile.tgz
 +</​code>​
 +
 +Very large files may be transferred more quickly by using a multi-threaded downloader. The easiest of these is **axel**, see [[https://​github.com/​axel-download-accelerator/​axel|axel'​s GitHub page]]. ​ The syntax is very simple:
 +
 +<​code>​
 +module load chpc/​compmech/​axel/​2.17.6
 +axel -n 4 -a http://​someserver.someuni.ac.za/​pub/​somefile.tgz
 +</​code>​
 +
 +
  
 [[guide:​connect|Read more on connecting to the CHPC...]] [[guide:​connect|Read more on connecting to the CHPC...]]
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 | ''/​home'' ​ | NFS  | 80 TB ​ | **15 GB**  | Yes  | Yes  |  | ''/​home'' ​ | NFS  | 80 TB ​ | **15 GB**  | Yes  | Yes  | 
 | ''/​mnt/​lustre/​users'' ​ | Lustre ​ | 4 PB  | none  | NO  | Yes  |  | ''/​mnt/​lustre/​users'' ​ | Lustre ​ | 4 PB  | none  | NO  | Yes  | 
-| ''/​lustre/​SCRATCH5'' ​ | Lustre ​ | 1 PB  | none  | NO  | **//No longer available//​** ​ |  
 | ''/​apps'' ​ | NFS  | 20 TB ​ | none  | Yes  | On request ​ |  | ''/​apps'' ​ | NFS  | 20 TB ​ | none  | Yes  | On request ​ | 
 | ''/​mnt/​lustre/​groups'' ​ | Lustre ​ | 1 PB  | none  | NO  | On request only  |  | ''/​mnt/​lustre/​groups'' ​ | Lustre ​ | 1 PB  | none  | NO  | On request only  | 
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 The module command may be abbreviated and optionally be given a search term, eg.:  ​ The module command may be abbreviated and optionally be given a search term, eg.:  ​
   module ava chpc/open   module ava chpc/open
 +Or, more flexibly, you can pipe stderr to grep, and search for a phrase, such as mpi:
 +  module avail 2>&1 | grep mpi
 To see a synopsis of a particular modulefile'​s operations: To see a synopsis of a particular modulefile'​s operations:
   module help <​module_name>​   module help <​module_name>​
/var/www/wiki/data/attic/quick/start.1564554855.txt.gz · Last modified: 2019/07/31 08:34 by ccrosby