Can I access my CSC home/wrkdir/project directories from ePouta?
It's possible to access your regular CSC $HOME, $WRKDIR and even application directories from cPouta in the same way it is possible to access them from outside CSC. These directories are not directly accessible to cPouta because the HPC systems network is separated for security and performance reasons. However if you install sshfs tool to you virtual machine you can create a temporary remote mounts for your personal directories in Taito or Sisu.For example, if user kkayttaj would like to mount his $WRKDIR from Taito to a Ubuntu based virtual machine running in cPouta, he would first need to install sshfs too to the virtual machine:
sudo apt install sshfs
After that, an empty directory is created to be used as a mount point:
Next the mounting is done with command:
sshfs firstname.lastname@example.org:/wrk/kkayttaj ./taito_wrk
After this, directory taito_wrk shows the content of $WRKDIR in Taito/Sisu and it can be used as any mounted directory. However, the I/O performance of the remotely mounted directories is not as good as locally mounted directories. Because of that, in the case of I/O intensive tasks it may be more reasonable to copy the data to the local disks of the virtual machine. Tools like scp and rasync can be used for that.
To unmount; the file system, give a command:
fusermount -u mountpoint
For example the remote mount created above, would be removed with commands:
fusermount -u taito_wrk
For more information is available about data on CSC's HPC systems in our CSC Computing environment user guide .