[IITAC-users] [Lonsdale-users] Status of TCHPC clusters (downtime 20th-23rd Dec)

[Paddy Doyle]

Dear all,

This is a reminder that all TCHPC clusters will be unavailable for the start of
next week, to allow us to expand the IO infrastructure as part of the Kelvin
installation.

In particular, please note:

* no jobs will run in the IITAC, lonsdale, parsons or tcin clusters

* users' home-directories will be unavailable.

* the global /gscratch area will also be unavailable.


We aim to have home directories available again as soon as possible in the week
to allow people to log in, submit jobs etc, but the queues will likely only be
available again towards the end of the week.

We apologise for any inconvenice these activites cause. Please email any queries
to ops at tchpc.tcd.ie

Kind regards,
Paddy

On Tue, Dec 07, 2010 at 01:35:41PM +0000, Dermot Frost wrote:

> 
> Dear user,
> 
> Apologies to those who receive this email more than once.
> 
> 
> TCHPC are currently installing and commissioning the new eINIS cluster
> (to be called Kelvin). This 1200 core system will become available to
> all computational researchers throughout Ireland in the new year through
> an application system similar to ICHEC's class B projects.
> 
> In order to accomodate this new system, parts of the old IITAC cluster
> have been taken offline. Users may have noticed an increase in queue
> times on IITAC and periods of instability. Once Kelvin has been fully
> installed we will be working to increase the number of IITAC nodes that
> are in service.
> 
> As part of the Kelvin install we will also be upgrading the Storage
> System by increasing the number of IO nodes and moving the interconnect
> from DDR Infiniband to QDR. This will involve a period of complete
> downtime for all clusters that use the shared GPFS storage - IITAC,
> Lonsdale and Parsons and we are scheduling that for the week starting
> 20th December. The clusters will be back online in time to allow people
> to submit jobs to run over the holiday break.
> 
> We apologise for any inconvenice these activites cause. Please email
> any queries to ops at tchpc.tcd.ie
> 
> 
> Dermot
> 
> --
> Dermot Frost
> Technical Manager
> TCHPC
> 
> _______________________________________________
> Lonsdale-users mailing list
> Lonsdale-users at lists.tchpc.tcd.ie
> http://lists.tchpc.tcd.ie/listinfo/lonsdale-users
> 

-- 
Paddy Doyle
Trinity Centre for High Performance Computing,
Lloyd Building, Trinity College Dublin, Dublin 2, Ireland.
http://www.tchpc.tcd.ie/