hpc

New ICTS HPC cluster

application, hpc
Installed and configured a new cluster, srvslnhpc001.  The head node is a HP BL20P blade with 2 dual core 3.6GHz CPUs and 8GB RAM.  The 3 worker nodes are BL20P blades with 2 dual core 3.6GHz CPUs and 4GB RAM…
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Sharing resources with Grid technology

hpc, sagrid
The screen capture below is a good example of how ICTS's HPC is contributing towards the research community in South Africa through SAGrid.  Grid technology, in this instance the gLite middleware, allows portions of an HPC cluster to be…
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OpenMPI

hpc, MPI, programming
Installed openmpi 1.4-4 as well as the MPI development suite on the test cluter. Configured host based authentication to obviate the ssh password authentication. Compiled a test case program.  Seeing a 50% speed improvement when splitting the workload over 3…
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Comparative shopping

AWS, hpc
UCT-ICTS offers BL460 dual quad core CPUs with 2.4 GHz Xeon processors.  The blades come with either 16 or 32 GB of RAM, fiber channel HBAs and dual NICs.  Compared to Amazon each CPU gives approximately 2 EC2 compute units. …
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PBS POC upgrade test

hpc, torque
Tested the upgrade path of Torque from 2.5.3 to 3.0.0. Fairly easy, except one needs to remember a few things:
  1. shut down the pbs daemons before starting.
  2. run torque.setup to sort out the symlinks.
  3. restart the maui daemon.
All seems…
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HPC cluster fully utilized

hpc
Deployed stats and accounting package to Virtual Box test bed.  Doesn't work so well as Vbox hides various parameters from net-snmp. Another maths user has joined the UCT HPC cluster and started submitting jobs. Currently the cluster CPUs are 100%…
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