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Policies

LCLS users are responsible for complying with the data management and curation policies of their home institutions and funding agents and authorities. To enhance the scientific productivity of the LCLS user community, LCLS supplies on-site disk, tape and compute resources for prompt analysis of LCLS data, and software to access those resources with published durations for the retention of data. Compute resources are preferentially allocated to recent and running experiments.

Getting an Account

You will need a valid SLAC UNIX account in order to use the LCLS computing system. The instructions for getting a SLAC UNIX account are here:

http://www-ssrl.slac.stanford.edu/lcls/users/logistics.html#compaccts

Your UNIX account must be enabled in the LCLS system in order to have access to data and elog. This happens automatically if your account is created with XU as its primary group. If your primary UNIX group is not XU, make a request of enabling your account in the LCLS system by sending an email to:

pcds-help@slac.stanford.edu

If you forgot your password or if your account has been disabled send an email to:

account-services@slac.stanford.edu

If you remember your password, but it expired, then you can reset it here:https://unix-password.slac.stanford.edu/chpw/kpasswd1.pl

Getting Access to the System

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Each pool is currently made of six servers with the following general specifications:

• 8-cores, Opteron 2384, 8GB16GB, diskless, 10Gb/s

Each node in the interactive pools has one single user Matlab license. You can find which nodes in the pool have a Matlab license available by running the following command on any of the psana nodes:

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The batch farm is made of eighty servers with the following general specifications:

• 12 cores (24 with Hyperthreading), Xeon X5675, 24GB memory, 500GB disk, QDR IB

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This will submit a job (my_program) to the queue psnehq and write its output to a file named ~/output/job.out.You  You may check on the status of your jobs using the bjobs command.

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In addition, your LD_LIBRARY_PATH;PATH }}should include {{/usr/lib64/openmpi/1.4-gcc/lib (or something similar).

For notes on compiling examples; , please see:

http://www.slac.stanford.edu/comp/unix/farm/mpi.html 

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