These pages represent an attempt to collect the most interesting information on the CPU technology on behalf of HEPiX community.
The CPU benchmarking working group which was launched during the HEPiX meeting at Jefferson Lab (Oct 2006) has also introduced a WIKI for internal discussions (access is currently restricted to the members of the working group).
A separate HEP-SPEC06 WIKI to provide more detailes information about the newly created HEP-SPEC06 benchmark and to collect benchmark results is publicly available.
A detailed overview on current processors can be found at CPU-World.
Since 2005, the integer packages of the SPEC CPU2000 benchmark set has been used for CPU benchmarking. However, this benchmark has been retired by SPEC and replaced by its successor, SPEC CPU2006.
We still provide more detailed information about this benchmark, as well as performance results measured on a representative set of cluster nodes, in a separate table.
The HEPiX benchmarking working group has introduced the "HEP-SPEC06" benchmark for CPU benchmarking at HEP sites. HEP-SPEC06 is based on the "all_cpu" benchmark set provided by SPEC CPU2006. See the latest HEPiX report from the Benchmarking working group by Helge Meinhard (CERN) for more details.
The investigations have demonstrated that this benchmark is a very good match for the percentage of floating point operations found in representative HEP applications. See the analysis by Michele Michelotto (INFN Padova) for a comparison of SPEC benchmark results and performance of several HEP (Alice, Atlas, CMS, and LHCb) codes.
See the HEP-SPEC06 WIKI for more details and for a collection of benchmark results.
There were no talks about CPU performance benchmarking presented at IHEP.
SPEC and SPECint are registered trademarks of the Standard Performance Evaluation Corporation (SPEC).
Manfred Alef / Karlsruhe Institute of Technology (last modified: 2012-11-13)