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--- public:processing_at_juropa [2014-06-05 15:53] – Stefan Froehlich
+++ public:processing_at_juropa [2017-03-08 15:27] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+===== Juropa decommissioned =====
+The information below is only for backup and some install info might still be useful to other people.
+The new system is Jureca and you can find the info here:\\
+[[http://www.lofar.org/wiki/doku.php?id=public:lofar_processing_juelich]]
 ===== Installation and Processing on Juropa ======
 Here will be some notes on the Juropa installation and how to use the software on Juropa at the Juelich Supercomuting Centre.\\
@@ Line 24: / Line 29: @@
 For Sara\\
 [[https://lofar-download.grid.sara.nl/]]\\
-If you want to do a direct srm copy you need a Grid Certificate.
+\\
+The recommended way to copy data is via srm copy. For doing this you need a Grid Certificate and to Register in the Virtual Organization (VO) as a Lofar User.
+==== Register with the Virtual Organization ====
+You can register with the Lofar VO here:
+[[https://voms.grid.sara.nl:8443/voms/lofar]]
 ==== Grid Certificate ====
 To get direct srm copy access to the LTA storage you need a Grid Certificate.\\
@@ Line 31: / Line 41: @@
 [[http://dgi-2.d-grid.de/zertifikate.php]]
 ==== SRM Copy from Juropa ====
-Here are only a few lines we need from Hanno Holties guide (Link is for reference. Whole guide not applicable to Juropa any more [[http://www.lofar.org/operations/doku.php?id=public:srmclientinstallation&#walkthrough]])\\
+There are two possible ways to create proxies on Juropa. With the ltools and grid-proxy-init commands or with voms-proxy-init.\\
+The main difference is the authentication at the VO server. The voms-proxy-init can directly get a user role as input where as the grid-proxy-init can not. For grid-proxy-init the user roles are compared to a local file that is synchronized with the SARA server once per day. So you have to wait until the next day after registering with the Lofar VO in order to use your proxies.\\
+== grid-proxy-init ==
+To use the grid-proxies simple follow these steps:\\
 Store your private key in ''$HOME/.globus/userkey.pem''\\
 Execute:\\ <code>chmod 600 $HOME/.globus/userkey.pem</code>
@@ Line 40: / Line 53: @@
 <code>grid-proxy-init -bits 2048</code>
 Test data retrieval:\\ <code>srmcp -server_mode=passive srm://srm.grid.sara.nl/pnfs/grid.sara.nl/data/lofar/ops/fifotest/file1M file:///file1M</code>
-When copying data with the --jobfile option, keep in mind that there is a 30min cpu limit on the login node. Meaning your srmcp should be shorter that 30min.
+When copying data with the --jobfile option, keep in mind that there is a 30min cpu limit on the login node. Meaning your srmcp should be shorter that 30min.\\
+\\
+== voms-proxy-init ==
+To use voms-proxies handle your keys and certificate as above and source the script
+<code>. /lustre/jhome17/htb00/htb003/lofar_grid/init_java6.sh</code>
+Optional: Set proxy environment variable to custom location:\\ <code>export X509_USER_PROXY=<proxy_location></code>
+Generate a proxy:\\ <code>voms-proxy-init -voms lofar:/lofar/user</code>
+Test data retrieval:\\ <code>srmcp -server_mode=passive srm://srm.grid.sara.nl/pnfs/grid.sara.nl/data/lofar/ops/fifotest/file1M file:///file1M</code>
 ==== LOFAR Software ====
 The LOFAR Software Framework is installed in the home directory of user htb003. You load the environment with
@@ Line 260: / Line 280: @@
 The current working installation is in:
 <code>
-/lustre/jhome17/htb00/htb003/LOFAR-R14-P275
+/lustre/jhome17/htb00/htb003/lofar/release
 </code>
 Some things have to be Changed in order to compile and run everything on Juropa.