The UWM Research Computing Service was established in 2009 and maintains a variety of computing resources for UWM researchers, including standalone servers, High Performance Computing (HPC) clusters for running parallel programs, and a High Throughput Computing (HTC) grid for running serial programs in parallel.

The parallel computing services currently consist of an HPC cluster for faculty research named "Avi", an HPC cluster for education named "Peregrine.", and an HTC grid named "Meadows".  A new HPC research cluster named "Mortimer" will be available late 2014 or early 2015.

Avi specifications

  • 142 compute nodes (1136 cores total). Each node is a Dell PowerEdge R410 server with two quad-core Intel(R) Xeon(R) X5550 processors @ 2.67GHz.
  • Most compute nodes have 24 GiB of RAM.  A few "high memory" nodes with 128 GiB of RAM are provided for special programs that require large amounts of memory on a single node.
  • One head node running the SLURM resource manager, a Dell PowerEdge R310 server with 6 Intel(R) Xeon(R) E5-2407 processors @ 2.20GHz and 32 gigabytes of RAM.   An identical backup node automatically takes over in the event of a head node failure.
  • A primary IO node, a Dell PowerEdge R710 server, with two quad-core Intel(R) Xeon(R) E5520 processors @ 2.27GHz, 48 GiB of system memory and seven Dell PowerVault MD1000 3Gb/s SAS attached expansion units, serving nine shared RAID 60 and RAID 10 partitions of approximately 7 terabytes each over NFSv4.
  • One high-speed I/O node, a Dell PowerEdge R720xd with two six-core Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz and 32 gigabytes of RAM, serving a single 10 terabyte RAID 6 partition over NFSv4.
  • All compute and I/O nodes are linked by Qlogic DDR InfiniBand (16Gb/s) and gigabit Ethernet networks.
  • All nodes currently run CentOS Linux 6.5.

Peregrine Specifications

  • 8 compute nodes (96 cores total). Each node is a Dell PowerEdge R415 rack-mount server with two six-core AMD Opteron 4180 2.6GHz processors and 32 GB of system memory.
  • One head node, a Dell PowerEdge R415 server, with one 6-core AMD Opteron processor and 16 GB of system memory.
  • The head node houses a 5 Terabyte RAID5 array, available to all compute nodes via NFS.
  • All nodes are connected by a dedicated gigabit Ethernet network interface.
  • Jobs are scheduled using the SLURM resource manager.
  • In addition, Peregrine is a submit node and manager for the UWM HTCondor grid, which provides access to idle cores on lab PCs and other machines around campus for use in embarrassingly parallel computing.
  • All nodes run FreeBSD 9.2 and offer a wide variety of open source software installed via the FreeBSD ports system.

HTC Grid

  • Jobs scheduled via HTCondor via the Peregrine HPC cluster
  • Access to idle UWM desktop machines for running serial programs in parallel
  • Access to an additional 15,000 processors on UW Madison's CHTC grid as an overflow resource

Development and Education Server

  • Dell PowerEdge R420 server
  • Dual Intel(R) Xeon(R) CPU E5-2450 CPUs for a total of 16 hyper-threaded cores (32 threads)
  • 64 GB RAM
  • 5.3 TB RAID storage
  • Hundreds of preloaded software packages including compilers and scientific applications and libraries