Interesting to compare the performance numbers given for the Itanium
running Glucas v2.8c against my Thunderbird running mprime v21.4 :
- At the smallest FFT length, the Itanium is WAY faster.
this performance difference decreases until
- At FFTs 640K-2048K, the Itanium is a little bit faster
then the performance difference increases until
- At the largest FFT length, the Itanium is noticeably faster
Is it memory-bandwidth that lets the Itanium pull ahead at the
large FFT lengths ?
mikus
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