We present a performance evaluation of Pleiades based on the Intel Xeon E5-2670 processor, a fourth-generation eight-core Sandy Bridge architecture, and compare it with the previous third generation Nehalem architecture. Several architectural features have been incorporated in Sandy Bridge: (a) four memory channels as opposed to three in Nehalem; (b) memory speed increased from 1333 MHz to 1600 MHz; (c) ring to connect on-chip L3 cache with cores, system agent, memory controller, and QPI agent and I/O controller to increase the scalability; (d) new AVX unit with wider vector registers of 256 bit; (e) integration of PCI-Express 3.0 controllers into the I/O subsystem on chip; (f) new Turbo Boost version 2.0 where base frequency of processor increased from 2.6 to 3.2 GHz; and (g) QPI link rate from 6.4 to 8 GT/s and two QPI links to second socket. We critically evaluate these new features using several low-level benchmarks, and four full-scale scientific and engineering applications.
CITATION STYLE
Saini, S., Chang, J., & Jin, H. (2014). Performance evaluation of the intel sandy bridge based NASA pleiades using scientific and engineering applications. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 8551, pp. 25–51). Springer Verlag. https://doi.org/10.1007/978-3-319-10214-6_2
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