Dense Memory Cluster (DMC)
The DMC at the Alabama Supercomputer Center has 168 CPUs and
1312 gigabytes of distributed memory. Each compute node has a local disk
(885 gigabytes of which are accessible as /tmp). Also attached to the
DMC is a high performance Fiber Channel RAID Array (600MB/s) running
the GPFS Filesystem, which has 3.4 terabytes of high performance storage accessible
as /scratch from each node. Home directories as well as third party applications
use the NFS Filesystem and share 4 terabytes of Fiber Channel RAID storage.
The machine is physically configured as a set of 8 CPU SMP boards with 64 GB of memory. Each CPU is a 3 GHz AMD Opteron processor. Each processor has a floating point benchmark (SPECFP) of 2117. The entire machine has a capacity of 1008 gigaFLOPS (billion floating point operations per second).