TSUNAMI-3D Parallel mode

[Jimbo]

Can TSUNAMI-3D be run in parallel mode?

[William BJ J. Marshall]

There is no parallel capability in KENO in SCALE 6.1, and therefore no parallel TSUNAMI-3D either.

SCALE 6.2 has parallel capability in KENO, so parallel TSUNAMI-3D is possible.  The parallel execution is domain replication, so the memory footprint for the calculation can become huge.  The total memory requirement is the amount needed for a single core times the number of cores you request.  For some classes of problems this isn't a problems, for others it's essentially prohibitive.

SCALE 6.2 also introduces 2 methods for calculating sensitivities in TSUNAMI-3D in continuous energy.  One of those two methods, CLUTCH (CET=1), can also be run in parallel.

Parallel executables are not distributed with SCALE 6.2, so you'll have to build them yourself.  Some instructions are included in the readme/Getting Started section of the manual.  If you're interested in generating your own parallel build and run into specific problems, some help is available with answered questions on the SCALE 6.2 forum page or you can email scal...@ornl.gov.