Home directories Currently each user has 500 MB in home directory space (/home/<username>). This is for configuration and login files. It will be quite a bit slower than other disk resources, so it should not be used for high volume access. Long-term Group storage Each group has a directory shared by all members of the group (and only that group). These directories are links under the directory /work. To find your group, issue the "groups" command. The first group listed is your primary group. Issue "ls -d /work/*" to see all group directories. E.g. For user jjc, "groups" shows ccresearch. This means that /work/ccresearch is available on all nodes and jjc can create files there using the ccresearch group's quota. Group quota for this space is based on the shares for the group and can be seen using "quota -gs". Always use /work/
link to access your group's storage since location of the group directories may change. Temporary local storage One can use the storage on the disk drive on each of the compute nodes by reading and writing to $TMPDIR (150 GB on each compute node). 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 the shared location: /home/<user> (where <user> is your user name) /work/<group>/<user> (where <group> is your group name) which are mounted on each of the compute nodes.