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The FLUENT 6.1.22 release in October 2003 includes certification
on the 64-bit Opteron processor from AMD, running
under the SUSE Linux OS. This certification confirms
that Fluent’s standard 32-bit executable performs well on the
Opteron system, taking advantage of Opteron’s on-board 32-
bit capability. Work on the 64-bit port for Opteron is in progress
and is expected with the release of FLUENT 6.2 later next year.
Early indications are promising, and a prototype may be available
earlier in the year for interested clients to try.
The advantage of a 64-bit processor is that it can handle
processes with huge memory demands. By contrast, 32-bit
machines are limited to processes that, together, require less
than 4GB of RAM. On most PCs, processes are limited to 3GB
in size. This restriction limits FLUENT simulations to problems
with 2 to 3 million cells (per processor), depending on the
number of auxiliary equations (for turbulence, heat transfer,
species transport, or multiphase, for example) being solved.
The 64-bit architecture lifts the process size limit by several
orders of magnitude.
More Information
www.amd.com/us-en
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