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workshops:hpcprac1

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workshops:hpcprac1 [2015/06/28 15:28]
kevin 		workshops:hpcprac1 [2021/12/09 16:42] (current)
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-=====Practical 1: Linux Shell=====+=====Practical 1: Linux Shell for Programmers=====
  
 **Aim:** to build and install in your //home// directory a library and and application. **Aim:** to build and install in your //home// directory a library and and application.
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 ====Logging in==== ====Logging in====
  
-Download and install putty-ssh and connect to ''ranger.ace.chpc.ac.za'' using the username (schoolNN) and password provided.+Download and install putty-ssh and connect to ''lengau.chpc.ac.za'' using the username (**studentNN**) and password provided.
  
 ====Build and install zlib library==== ====Build and install zlib library====
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 Copy the zlip source code tar file from my home directory. Copy the zlip source code tar file from my home directory.
  
-  cp /home/kcolville/??? .+  cp /home/student00/??? .
  
 Fill in the ??? with the correct path and file name. Fill in the ??? with the correct path and file name.
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 Move the tar file into the new directory: Move the tar file into the new directory:
   mv zlib-1.2.8.tar.gz src/   mv zlib-1.2.8.tar.gz src/
 +
 +> Note that the version available is probably newer than 1.2.8 --- modify these instructions accordingly.
  
 Untar the file Untar the file
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 Load the correct environment variables using the tool "module": Load the correct environment variables using the tool "module":
  
-  module load gcc/gcc-4.9.2/4.9.2+  module load gcc/??? 
 + 
 +**Fill in the correct information for the ??? above.**
  
 Prepare your own local directory structure: Prepare your own local directory structure:
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 ====Build a simple application using your own zlib==== ====Build a simple application using your own zlib====
  
-Copy the ''zpipe.c'' file from my home directory into your ''src'' directory.+Copy the ''zpipe.c'' file from my home directory (student00) into your ''src'' directory.
  
 > You should be able to work out what the commands are by now > You should be able to work out what the commands are by now
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   gcc -o zpipe -I ~/local/include zpipe.c -L ~/local/lib -lz   gcc -o zpipe -I ~/local/include zpipe.c -L ~/local/lib -lz
  
-> The order of the command line options and arguments is important +> The **order** of the command line options and arguments is important 
->> The commands to link the library file must come after the commands to compile.+> The commands to //link// the library file must come **after** the commands to //compile//.
  
      
-If there are no errors and ''ls'' shows you a zpipe file (in green) you are done.+If there are no errors and ''ls'' shows you a ''zpipe'' file (in green) you are done.
  
 You can test the new ''zpipe'' program by compressing and then uncompessing a file. You can test the new ''zpipe'' program by compressing and then uncompessing a file.
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 ====Install zpipe==== ====Install zpipe====
  
-Now it is inconvenient that you have to always be in the ''src'' directory to use ''zpipe'' or to have to always type the full path to it: ''~/zpipe''+Now it is inconvenient that you have to always be in the ''src'' directory to use ''zpipe'' or to have to always type the full path to it: ''~/src/zpipe''
  
 Install ''zpipe'' in your local execultable tree Install ''zpipe'' in your local execultable tree
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   cd   cd
   zpipe --help   zpipe --help
 +
 +To make sure that each time you login that the ''PATH'' variable contains your ''local/bin'' directory, just add the ''export'' command to your ''.bash_profile'' file.
 +
 +  nano .bash_profile
 +  
 +And add (or edit the existing line) to have:
 +
 +  PATH=$HOME/local/bin:$PATH
 +  export PATH
 + 
 +
 +====References====
 +
 +  * ''zpipe.c'' is from [[http://zlib.net/zlib_how.html|zlib Usage Example]]
 +  * [[http://zlib.net/|zlib home]]
  
  
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