Classroom Cluster - Storage



Home directories
  Home directories have 5GB of quota. 

CyFiles
  CyFiles are mounted on the system at /cyfiles. To access your CyFiles
  directory, use /cyfiles/<your_user_name>
  Additional information on CyFiles can be found on the  
  Information Technology website

Large short-term storage
  For large short-term storage currently 30 TB of storage is available 
  in /ptmp . This storage is shared among all users. Issue:
     mkdir /ptmp/$user
  and use that directory. Other users will not be able to access it
  unless you change the permissions.
  Note that /ptmp files are deleted 30 days after they are created.
  This may be adjusted if space becomes short.

Temporary local storage
  One can use the storage on the disk drive on each of the compute nodes 
  by reading and writing to $TMPDIR (about 2.5 TB).  This is temporary 
  storage that can be used only during the execution of your program. Only 
  processors executing on a node have access to this disk drive.  You must 
  ensure that multiple processes executing on the same compute node don't 
  accidentally access files in $TMPDIR meant for other processes; one way 
  to accomplish this is by including MPI process ranks in temporary 
  filenames.

Submitting MPI job
  When submitting an MPI job make sure that the executable resides in one
  of the shared locations:
       /home/<user>     (where <user> is your user name)
       /ptmp/<user>     (where <user> is your user name)
  which is mounted on each of the compute nodes.