Processors White Papers
IBM e326m Performance for HPC
Overview This paper examines the performance of single- and dual-core versions of the IBM eServer 326 m (e326m) servers. The analysis includes memory bandwidth and latency, floating-point vector performance, performance of the SPEC CPU2000 speed and rate benchmarks, and both uni- and bidirectional traffic over the PCI-Express I/O slot using a high-speed InfiniBand adapter from Voltaire with an MPI benchmark. This paper finds that the processor-memory complex performs well. The PCI-Express slot also performs well under most loads, but high-bandwidth bidirectional traffic suffers somewhat with dual-core processors because of the single-threaded nature of device drivers and the lower clock speeds supported by dual-core processors.
| Publisher | IBM | File Format | |
|---|---|---|---|
| Date Published | December 2005 | ||
| Format | White Papers | ||
| Topics | |||
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