Lonestar5 is no longer in production and users may no longer run jobs on the system. The Lonestar5 login nodes will remain available until Lonestar6 is in production.

Lonestar5 is a high performance computing system deployed at TACC for use by academic researchers in Austin and across Texas. It serves as the primary advanced computing resource in the University of Texas Research Cyberinfrastructure (UTRC) initiative, sponsored by The University of Texas System, as well as for partner institutions Texas Tech University and Texas A&M University.

 Lonestar5 User Guide

Researchers from UT System institutions and contributing partners wishing to request access to Lonestar 5 should do so via the TACC User Portal.

System features:
  • 1252 Cray XC40 compute nodes, each with two 12-core Intel® Xeon® processing cores for a total of 30,048 compute cores
  • 2 large memory compute nodes, each with 1TB memory
  • 8 large memory compute nodes, each with 512GB memory
  • 16 Nodes with NVIDIA K-40 GPUs
  • 5 petabyte DataDirect Networks storage system
  • Cray-developed Aries interconnect

Vendor partners: Cray, Intel, DDN

Partners: UT Austin, including ICES and CSR; UT System; Texas Tech; Texas A&M