[Trilinos-Users] need some help with Isorropia
Jonas Thies
J.Thies at rug.nl
Fri Jul 11 05:47:54 MDT 2008
Hi all,
I am trying to solve a load-balancing problem, can anyone give me some
advice or pointer to further reading? I have no experience with Zoltan
and the like, so maybe this is trivial.
Here's the setting:
I compute the Jacobian of a set of 6 coupled nonlinear PDE on a
structured grid based on a simple 2D decomposition of the 3D rectangular
domain where everyone has (roughly) the same subdomain size. Before
solving the linear system, I would like to redistribute it based on
vertex weights (which I determine from physical properties) and
communication issues (minimal edge cut) under the constraints that
(a) the six dof in each grid cell stay together
(b) the z-direction shouldn't be split up (the decomposition should
remain 2D but the domains needn't be rectangular in the x/y directions
for the solve).
thanks for your help,
Jonas
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