Author: Dann Corbit
Date: 12:45:20 10/22/01
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On October 22, 2001 at 14:45:05, Brian Richardson wrote: >On October 22, 2001 at 13:58:31, Dann Corbit wrote: > >>On October 22, 2001 at 07:20:07, Gian-Carlo Pascutto wrote: >> >>>On October 22, 2001 at 05:33:50, Ralf Elvsén wrote: >>> >>>>Has anyone seen how Crafty does on an Itanium processor? >>>> >>>>Ralf >>> >>>www.spec.org >>> >>>Short answer: pathetic >>> >>>Itanium 800: 355 >> >>I suspect that this measurement is largely a misnomer. >>The Itanium chip has a popcount instruction. > >There is no bit-level Itanium popcount instruction. There is one for bytes >(non-zero bytes, not bits per byte). There were some posts about this about a >year ago. Merced performance is very poor. McKinley may be acceptable. What's this then: http://www.calvin.edu/academic/rit/webBook/computer/design/hardware/cpu/itanium/population.html
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