Overview

PALMA (Paralleles Linux-System für Münsteraner Anwender) is a cluster consisting of 3528 CPU cores. They are distributed as follows:

• 36 nodes with 2 quadcore Intel Nehalem processors each, totally 8 cores per node
• 254 nodes with 2 hexacore Intel Westmere processors, totally 12 cores per node
• 4 SMP (shared memory) nodes with 32 cores each
• 2 SMP (shared memory) nodes with 40 cores each

The configuration in detail:

Compute Nodes:

• 2,6 GHz, 4 respectively 6 cores
• 2 GB (Westmere) respectively 3 (Nehalem) respectively 4 GB (Westmere) main memory per core

SMP-System:

• 32 cores with 2 GHz
• 256 GB RAM

• Intel Xeon E4850, 2 GHz, 4x10 Cores
• 512 GB RAM

• Intel Xeon E4850, 2 GHz, 4x10 Cores
• 256 GB RAM

Filesystem:

• 3 TB /home partition
• 180 TB /scratch partition

QDR Infiniband is serving as a fast interconnect.

Detailed list of all nodes with amount of memory

Access to the system

You have to fulfill two requirements to submit jobs on Palma:

• You have to be a member of the group u0clustr (ZIV.MeinZIV)
• You have to be a member of one of the 29 projects that may compute on Palma

myJAM

Another tool for a graphical view of the queues is pbstop-

The node for a worldwise ssh-Login is called palma.uni-muenster.de. If you wand to have a graphical login, you can use the login via vnc

You can also access your home-directory from other Linux-computers via sshfs

If you have any questions regarding Palma, write an email to hpc@uni-muenster.de

Computations on PALMA

Available Software

The Webinterface myJAM

Remote Visualization / GPGPU

Tips and Tricks for Palma

-- HolgerAngenent - 2010-08-16