Changes between Initial Version and Version 1 of doc/app/machine/hlrnIII


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Timestamp:
Nov 7, 2013 2:28:31 PM (12 years ago)
Author:
raasch
Comment:

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  • doc/app/machine/hlrnIII

    v1 v1  
     1= Hints for using the Cray-XC30 at HLRN =
     2
     3* running remote jobs
     4
     5== running remote jobs ==
     6
     7Starting from r1255,  PALM allows full remote access of the Berlin complex of HLRNIII. Since the batch compute nodes do not allow to use ssh/scp (which is required by '''mrun''' for carrying out several crucial tasks, e.g. for automatic submission of restart runs), the ssh/scp commands are executed on one of the login nodes (blogin1) as a workaround. Therefore, blogin1 must be a known host for ssh/scp. This requires the user to carry out the following three steps just once:
     8
     9   1. Login on blogin and create a pair of private/public ssh-keys (replace <hlrn-username> by your HLRN-username):
     10{{{
     11      ssh <hlrn-username>@blogin1.hlrn.de
     12      ssh-keygen -t dsa
     13}}}
     14      Enter <return> for any query, until the shell-prompt appears again.
     15
     16   2. On blogin, define the public key as one of the authorized keys to access the system:
     17{{{
     18      cat  id_dsa.pub  >>  authorized_keys
     19}}}
     20   3. Still logged in on blogin, login on blogin1:
     21{{{
     22      ssh <hlrn-username>@blogin1
     23}}}
     24   After the third step, the message
     25{{{
     26Warning: Permanently added 'blogin1,130.73.233.1' (RSA) to the list of known hosts.
     27}}}
     28   should appear on the terminal.