Dual core performance estimate

Ben Tay zonexo at gmail.com
Sun Nov 18 14:34:32 CST 2007


someone was talking abt core 2 duo performance on os x in some previous
email. it seems that due to memory issues, it's not possible to get 2x the
performance. there's also some mention of amd vs intel dual core.

for computation using PETSc, is there any reason to buy one instead of the
other? Also, supposed I use winxp + mpich2 + PETSc on a dual core, what sort
of performance increase can we expect as compared to PETSc + nompi on the
same machine?

or is that too difficult an answer to give since there are too many factors?

thank you

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