A comparison of NCAR application performance on IBM power architectures [presentation]
Whitenack, D., 2008: A comparison of NCAR application performance on IBM power architectures [presentation]. Summer Internships in Parallel Computational Science 2008, Boulder, CO, US.
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The performance of several of NCAR's climate models was measured on Bluefire and then compared with similar data from Blueice and Bluevista. Both Blueice and Bluevista are Power5 systems, whereas Bluefire is a Power6 system. Differences can be observed between the performance of these different architectures, and new technologies such as Altivec/VMX can be exploited on Bluefire. This work primarily relies on IBM's HPM toolkit to gather hardware counter data. From this counter data, differences in chip performance can be observed.