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MathGroup Archive 2006

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Re: Comparison of Mathematica on Various Computers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64369] Re: Comparison of Mathematica on Various Computers
  • From: carlos at colorado.edu
  • Date: Tue, 14 Feb 2006 01:31:47 -0500 (EST)
  • References: <200602090745.CAA19418@smc.vnet.net> <200602100713.CAA15024@smc.vnet.net> <dsk8m8$i9l$1@smc.vnet.net> <dsmueo$da0$1@smc.vnet.net> <dspfbp$cbu$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

AMD chipsets seem to have better (integrated) multilevel
memory management than comparable Intel  ones.
This makes a big difference for traffic intensive applications.

Recently two colleagues did extensive benchmarks on the
way to pick a 128-CPU supercomputer to run multiphysics
simulations.   Ended up buying an AMD cluster, which was
able to sustain 4 TFlops.  Handily beat IBM Power in price
performance.   In terms of pure 64-bit FP performance
IBM was better at the same clock rate but more expensive.

Intel seems to be way behind the curve in both CPU power and
memory management for historical reasons. They put much time
and effort on the Itanium flop.  Leaving them enough time,
they could overtake up AMD with low-power multicore.  They have
huge manpower resources.


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