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LDMS Monitoring of EDR InfiniBand Networks

Proceedings - IEEE International Conference on Cluster Computing, ICCC

Allan, Benjamin A.; Aguilar, Michael J.; Schwaller, Benjamin; Langer, Steven

We introduce a new HPC system high-speed network fabric production monitoring tool, the ibnet sampler plugin for LDMS version 4. Large-scale testing of this tool is our work in progress. When deployed appropriately, the ibnet sampler plugin can provide extensive counter data, at frequencies up to 1 Hz. This allows the LDMS monitoring system to be useful for tracking the impact of new network features on production systems. We present preliminary results concerning reliability, performance impact, and usability of the sampler.

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TYPE Conference Poster YEAR 2020
OSTIScopus

An Adaptive Framework for Extreme Deformation and Failure in Solids

Mota, Alejandro; Plews, Julia A.; Talamini, Brandon; Avery, Avery

Recent developments at Sandia in meshfree methods have delivered improved robustness in solid mechanics problems that prove difficult for traditional Lagrangian, mesh-based finite elements. Nevertheless, there remains a limitation in accurately predicting very large material deformations. It seems robust meshfree discretizations and integration schemes are necessary, but not sufficient, to close this capability gap. This state of affairs directly impacts current and future LEPs, whose simulation needs are not well met for extremely large deformation problems. We propose to use a new numerical framework, the Optimal Transportation Meshfree (OTM) method enhanced by meshfree adaptivity, as we believe that a combination of both will provide a novel way to close this capability gap.

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TYPE SAND Report YEAR 2020
DOIOSTI
Results 15901–16000 of 99,299
Results 15901–16000 of 99,299