Advanced Computing Resources

Computing Resources


The Hoffman2 cluster is UCLA’s centralized compute resource for campus researchers. The Hoffman2 cluster and its supporting programs help keep the UCLA community at the forefront of scientific discovery and creative endeavor by providing faculty, researchers, and students with access to innovative computational resources, user support, collaboration, and training. The cluster includes both a general campus-use section that is freely available to all interested researchers, and a section where researchers with significant computing needs can purchase and contribute nodes for their own priority use.


UCLA’s Office of Advanced Research Computing (OARC) and its Institute for Digital Research and Education (IDRE) jointly launched the Hoffman2 cluster in 2008. It currently consists of over 1,300 64-bit nodes and 23,000 cores, with an aggregate of over 115TB of memory and peak CPU performance of over 160 trillion floating point, double precision, operations per second (TFLOPS) plus another 200 TFLOPS with GPUs. Each node has Ethernet and Infiniband connectivity. The cluster includes a job scheduler, compilers, applications and software libraries, including software specific to chemistry, chemical engineering, engineering, mathematics, visualization, programming, and more. Hoffman2 is currently the largest and most powerful shared cluster in the University of California system.


Additional Hoffman2 resources for researchers include complete system administration for contributed cores, cluster access through dual, redundant 100Gb network interconnects to the campus backbone, the capability to run large parallel jobs that can take advantage of the cluster’s InfiniBand interconnect, and access to a multi-node NetApp storage system. Current HPC storage capacity is 3 petabytes, augmented by 250TB of flash-based storage for home and scratch directories and over 6PB of backup storage.


ORC/IDRE’s advanced research computing group manages and maintains the cluster. IDRE’s Executive Committee provides guidance on Hoffman2 operations and direction, and advocates to the campus for necessary research infrastructure enhancements and expansions. IDRE is co-sponsored by OARC and UCLA’s Office of the Vice Chancellor for Research.

More information about using the Hoffman2 cluster can be found on the cluster website.