Institute for Computational Astrophysics

ICA Clusters

The ICA owns and operates two clusters for specific tasks. The Lachesis cluster is used primarily for code development (for both MPI and OpenMP). Lachesis succeeds the Pluto cluster, which has been retired. The second cluster, Cerberus, is dedicated to long running 3d hydrodynamic calculations by Dr. Thacker and his coworkers.

Lachesis is a 144-core (three 48-core compute nodes plus 8-core head node) AMD Opteron 6172 (2.1GHz) processor cluster. It has a Gigabit Ethernet interconnect for MPI code. Two nodes have 1.33G-Bytes of memory/core - one node has 2.66G-Bytes of memory/core. The head node has about 6.7 T-Byte of RAID disk storage. It runs the Rocks Clustering software (V5.4) which is based on CentOS Linux 5.4. Compilers available include gcc/g++/gfortran (V4.1.2).


ICAClusterImage

Cerberus is a 304-core (three 32-core nodes and nine 16-core nodes) AMD Opteron processor cluster with an InfiniBand high-speed interconnect for MPI code. Most nodes have 2G-Bytes of memory/core - one 32-core node has 4G-Bytes of memory/core. The head node has 600G-Byte of magnetic scratch storage and 236G-Bytes of high-speed flash memory scratch storage. There is a separate data server with a capacity of 11.6 T-Byte of RAID disk storage. It runs the Rocks Clustering software (V5.0) which is based on CentOS Linux 5.0. Compilers available include Intel ifort/idb V9.0, gcc/g++/gfortran (V4.1.2)