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You can get into the LCLS photon computing system in the NEH by ssh'ing to one of these nodes:

psexport.slac.stanford.edu
psimport.slac.stanford.edu

From these nodes you can move data files in and out of the system and you can connect to the bastion hosts:

pslogin
psdev

Note that, from within SLAC, you can directly connect to the bastion hosts without going through psimport/psexport.

The SLAC wireless visitor network is not considered part of SLAC so you'll need to go through psexport/psimport when  when using your laptop on-site.

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Each node in the interactive pools has one single user Matlab license.

Batch Farm

Login first to psdev or to pslogin (from SLAC) or psimport or psexport (from anywhere). From there you can submit a job with the following command:

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The RedHat supplied OpenMPI packages are installed on psdev, pslogin, psimport, psexport and all of the psana batch servers.

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All your data is available on disk for one year after data taking. The path name is /reg/d/psdm. The data files are currently stored in a Lustre file system. Each experiment is allocated three directories: xtc, scratch and hdf5. The xtc directory contains the raw data from the DAQ system, hdf5 directory is for data files in HDF5 format. Contents of xtc and hdf5 directories are archived to tape. The scratch directory is not backed up. Please write the output of your analysis to the scratch area and not in your NFS space. Keep your analysis code under your NFS home or under your NFS group space (if you have one). Your NFS space is backep up. Please try to not keep more than 10GB under your NFS home or we may ask you to clean up.

Long-term Storage

After one year, your data files are removed from disk. The XTC and HDF5 files remain stored on tape for up to 10 years. LCLS may restore your data from tape back to disk for you to access. Restoring the data to disk more than once will require the approval of the LCLS management.

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The web interface also allows you to generate file lists that can be fed into bbcp to export your data from SLAC to your home institution. You can use psexport or psimport for  for copying your data.

See the Data Exportation page for more information.

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