system news

The batch server for Akka will be move to another system on Mar 25th

To do this we have to make sure no jobs are running and have therefor created a reservation that starts 08:00 on the 25th.

We estimate that it will take about an hour to do the move.

Mon, 2014-03-24 10:37 | Åke Sandgren

We are currently experiencing some problem with the /pfs/nobackup file system on Abisko.

To get it back into working order we are forced to reboot some of the nodes, thereby killing the jobs on them (the jobs would fail anyway due to the problem)

We apologize for this and are working as fast as we can to get it back in working order.

*UPDATE 2014-03-21 18:33*

/pfs/nobackup is now (hopefully) back in working order on Abisko

Fri, 2014-03-21 19:16 | Åke Sandgren

Akka has now been (partially) upgraded to Ubuntu Precise.

The login node and some of the nodes are upgraded.
The rest will follow when running jobs are finished.

The environemt is now the same as it is on Abisko.

Documentation on the web has not been updated yet so please look at the examples for Abisko in the meantime and adapt them to fit the number of cores (8) per node on Akka.

Please notify support@hpc2n.umu.se in case of problems.

Starting on Monday Mar 17th Akka will be upgraded from the old CentOS distribution to the same Ubuntu 12.04 distribution that is running on Abisko.

Akka will also run slurm as the batch system.

This way both systems will look and feel the same (apart from differences in computing speed of course)

Submission of jobs have already been stopped.
Already submitted jobs will be allowed to finish.

Fri, 2014-03-14 16:47 | Åke Sandgren

As some of you may have noticed the /pfs/nobackup filesystem is chock full. As a side effect of that the batch systems are holding off on starting new jobs.

This is due to a lot of users keeping old files in the filesystem.

Please note that even if you are using a smaller amount than your quota limit you are obliged to remove old files and strive to keep your filesystem usage as small as possible.

The nodes in the bigmem partition are currently being upgraded to new CPUs.
They will be under testing until 2014-02-04.

Thus no jobs will run in the bigmem partition until then.

*UPDATE 2014-02-05 09:20*
The bigmem partition is now back in production

Wed, 2014-01-29 10:31 | Åke Sandgren

Gromacs 4.6.5 has just been installed on Abisko.

We have updated the information on Gromacs with new submit file examples.
We stringly suggest that users take a look at them for increased efficiency.

Tue, 2014-02-04 13:33 | Åke Sandgren

Due to the oncoming winter holidays, HPC2N will be providing reduced support from Saturday the 21st of December, until Wednesday the 1st of January. HPC2N resources will be fully available, but response to support tickets, emails and such may be delayed.

We thank you for your patience and on behalf of the HPC2N team wish you a happy winter holiday season!  

Thu, 2013-12-19 10:29 | Daniel Petersen

Octave 3.6.4 has been installed on Abisko. It is loaded like this:

module load octave

If you do not load the module, the version of octave will be 3.2.4, which is the version included with the operating system.

Fri, 2013-12-13 13:39 | Birgitte Brydsö

The final system to be upgraded is the batch system server.

To do this we need to have the system completely stopped so as to not risk any jobs failing.
We have therefor created a reservation on the whole batch system starting on Monday 2013-12-16 08:00, which means that no jobs are allowed to be running past that point.

I.e. no jobs will be allowed to start unless they have a runtime which guarantees that thay have finished before that time.

Mon, 2013-12-09 13:52 | Åke Sandgren