What is Stampede (TACC)?

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Stampede is a Dell computing cluster provided as an Extreme Science and Engineering Discovery Environment (XSEDE) digital service by the Texas Advanced Computing Center (TACC). Stampede is scheduled to be decommissioned in the fall of 2017. Its replacement, Stampede2, is currently in production and available for use by XSEDE researchers.

Stampede2 features 4,200 nodes equipped with Intel Knights Landing (KNL) second-generation Xeon Phi processors. A second phase, which enters production in October 2017, will add 1,736 nodes equipped with Intel Xeon (Sky Lake) processors.

Although the original Stampede (Stampede1), including its GPU, large-memory, and Sandy Bridge nodes, will remain available until the fall of 2017, TACC will reduce the number of Sandy Bridge nodes to make room for the second phase of Stampede2.

Previously active users of Stampede1 now have accounts on Stampede2. Remaining Stampede1 service unit (SU) balances were automatically converted to Stampede2 balances at a rate of 31.25 to 1 (Stampede1 SUs are defined as core-hours; Stampede2 SUs are defined as node-hours). For example, 500,000 SUs on Stampede1 is equivalent to 16,000 SUs on Stampede2. Allocation expiration dates remain the same.

For more, see Stampede2 User Guide in the XSEDE User Portal.

This document was developed with support from National Science Foundation (NSF) grants 1053575 and 1548562. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.