Lunarc history IBM /VF IBM S/VF Workstations, IBM RS/ – 1997 IBM SP2, 8 processors Origin 2000, 46 processors, R Origin 2000, 100 processors, R12000, 300 Mhz 2000 Origin 2000, 116 processors, R12000, 300 Mhz 2000 Beowulf Cluster, cluster with 40 AMD 1.1 GHz cpus of the Origin 2000 processors were relocated to NSC A 64 processor cluster. AMD Athlon (WhenIm64) processors added (Toto7). Intel P GHz

Current hardware Husmodern, cluster –32 nodes, 1,1GHz AMD Athlon, WhenIm64/Toto7, clusters –65 noder, AMD 1900+, –128 noder, P GHz, –Fileserver, login nodes etc Ask, SGI Origin 2000 –48 nodes, R12000, 300 MHz, 12Gb

Current hardware

About Lunarc Current staff –1.3 fte Future Administration –2.5 fte ( minimum, depending on contract formulations)

Current users Core groups –Theoretical chemistry, Physical Chemistry2, Structural Mechanics Other large users –Fluid Mechanics, Fire safety engineering, Physics New groups –Inflamational Research, Biophysical Chemistry, Astronomy

Current users

Lunarc web User registration System information System usage Job submission ?

Using clusters Log in –Use ssh, unix tools etc mkdir proj sftp/scp vi/joe submit script –Submit script documentation Queue management –qsub script Transfer result files back –sftp/scp For many, this is a straightforward process, but why do we get so many questions??

Web portal for our clusters

Good knowledge about local circumstances Traditional users -> clusters -> grids User interface Grid of clusters