09 Jun 10 Aug 2022 The problem with the software stack has been resolved.

20 Mai 2022 as part of the recent maintenance, we shifted the software stack to a new filesystem. Yesterday, during the late afternoon a degradation occurred that led to segfaulting of applications. The root cause is still under investigation. 

As a temporary remedy, we switched back to the software stack on the previous filesystem yesterday evening (May 19). Today, we confirmed that most applications seem to work well.

We will keep you informed about the progress to a complete solution of the problem.

Apologies for any inconveniences.

new ANSYS software release 2022.R2 has been installed and tested on SuperMUC-NG. Corresponding modules and updated documentation is provided. In turn several older solver versions had to be deactivated, since they were no longer functional on SLES 15 SP3. For details see here

19 Jul 2022 The Omnipath issue appeared again causing partial unavailability of the WORK/SCRATCH filesystems which might cause job crashes. It is again under investigation.

Update 20 Jul 2022: We experienced further problems with the HOME filesystem yesterday late afternoon, but now the whole system is back to normal operation. Executing jobs may have failed and will require resubmission if so. 

15 Jul 2022 Unfortunately, the Omnipath issue from two days ago has resurfaced. It is under investigation, but we are observing job crashes and unmounts of file systems.

Update 14:50: The system is now back to operation.

13 Jul 2022 Due to an internal networking problem access to the file systems SCRATCH and WORK was partially disrupted between ~9:30 and 11:30. The system is back to operation again, but during the referenced time interval, executing jobs may have failed and will require resubmission if so. 

10 Aug 2022  The new ANSYS software release 2022.R2 has been installed and tested on Linux Clusters CMUC2/3 and on old as well as on "new" RVS systems. For more details on this ANSYS software release see here

20 Jul 2022 We encountered temporary problems with the HOME filesystem yesterday late afternoon, but the system is now back to normal operation. Executing jobs may have failed and will require resubmission if so. 

14 Jul 2022 SCRATCH is currently only partially available because some storage servers have gone offline. We are working to revive them.

The implication is that not all data on the file system are currently accessible, so jobs needing pre-existing data may fail.

Update 15 Jul 2022 15:40: SCRATCH is now fully available again.

22 Nov 2021 There are 4 "new" Remote Visualization (RVS_2021) nodes available. The machines are in production mode. Nodes are operated under Ubuntu OS and NoMachine. Usage is limited to 2 hours and if you need a longer period of time, please file an LRZ Service Request. For more details please refer to the documentation.

23 Jun 2022 Temporarily and as an "experiment" the maximum usage time of a "new" RVS node has been increased to 8 hours.

03 Aug 2022 The maintenance of the LRZ AI Systems

has

concluded.

29 Apr 2022 We have identified the likely root cause for the ongoing issues with the LRZ AI and MCML Systems following the latest maintenance downtime. We continue work towards a timely resolution and can currently not guarantee uninterrupted & stable system availability. For further detailsNote that the storage options have changed fundamentally. The previous home directories have been superseded by the default Linux Cluster home directories, please see LRZ AI Systems27 Apr for additional details.

24 Jun 2022 The LRZ AI and MCML Systems did will undergo a maintenance procedure from April 25th to April 27th (both inclusive.) During this periodbetween August 1st and 3rd, 2022. On these days, the system was will not be available to users. Normal user operation did resume on 2022-04-27 16:30is expected to resume on August 4th. Apologies for any inconveniences. Please see LRZ AI Systems for additional details as they become available.