Linux Cluster: Maintenance and Configuration Changes Jan 28 - Feb 1
publish at lrz.de
Mi Jan 16 09:59:31 CET 2013
Due to an extended hard- and software maintenance, the MPP, MAC and
8-way Myrinet clusters will be unavailable for user operation between
Jan 28, 8:00 am and Feb 1. This includes the login nodes lxlogin1-2.
All other cluster segments (serial cluster including all hosted
systems, sgi ICE and UV systems, 32 way Myrinet systems) will be
unavailable between Jan 31, 8:00 am and Feb 1.
* The default MPI environment will be changed from Parastation MPI to
Intel MPI. However, the mpi.parastation module will remain
available for legacy use until the end of 2013.
* The 8-way Myrinet Cluster will be retired from parallel processing,
and the nodes will be added to the serial processing pool. This
implies that the partition "myri_std" in the SLURM cell "myri" will
* New storage systems will be introduced for the WORK (==PROJECT) and
SCRATCH file systems. Please note that LRZ will only migrate WORK
data to the new file system; data in SCRATCH will not be migrated.
However the old SCRATCH file system will remain available as a
separate mount in read-only mode on the login nodes until the end
of March, 2013. Migration of data can then be done via commands
cp -a my_scratch_subdirectory $SCRATCH
The environment variable $SCRATCH_LEGACY will remain defined and
point to the legacy scratch area until end of March, 2013.
Further configuration changes may occur and will be added to the above
list if they are applied.
This information is also available on our web server
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