Engineering topics
Coulter, Susan K.
Publications and source records attributed to Coulter, Susan K..
Next Generation Infrastructure Plan FY18-FY22
Define a 2-5 year plan that documents facilities, operations, networking, storage and user support efforts to concentrate and coordinate resources within the ASC FOUS Program.
Proactive Identification and Remediation of HPC Network Subsystem Failures
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InfiniBand Topologies and Routing in the Real World
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Solving Complex Problems with High Performance Computing, Network and Storage at Los Alamos National Laboratory
Abstract Not Provided
Typhoon IB Performance
While running fundamental IB verbs testing on the Typhoon cluster, it was discovered that IB performance was not satisfactory for a QDR system. The theoretical maximum bandwidth expected on a QDR system is 32Gb/sec. After significant testing and analysis, RDMA read performance was consistently shown to be 50% lower than RDMA write performance, resulting in significantly less than half the theoretical maximum. Thorough testing and analysis identified a BIOS setting as the reason for this behavior.