Computing Facility

Location: South Bank Data Center
Supervisor/Coordinator: Robert A. Riggleman, Chemical and Biomolecular Engineering; Andrea J. Liu, Physics and Astronomy
Contact: Daniel Widyono

Rob Riggleman,


The LRSM Computing Facility is part of the Walnut High Performance Computing cluster ( and is a shared facility for theory, simulation, and data analysis for projects supported by the MRSEC. The cluster consists of 62 nodes, each with four Intel E5-4620 8-core processors (at 2.2 or 2.6GHz) and 64GB RAM. The nodes are connected by a low-latency Infiniband network to allow for efficient parallelization. The MRSEC owns approximately 30% of the Walnut Cluster, giving MRSEC users priority access to 568 compute cores, and limited access to the entire cluster during periods of reduced utilization.


Facilities users must include the following text in the acknowledgment section of their publications:

“The authors acknowledge the use of facilities supported by the Laboratory for Research on the Structure of Matter and the NSF through the University of Pennsylvania Materials Research Science and Engineering Center (MRSEC) DMR-2309043.”