Dear Petsc users my aim is to parallelize the solution of a linear system into a finite elements ocean model.
The model has been almost entirely parallelized, with a partitioning of the domain made element-wise through the use of Zoltan libraries, so the subdomains share the nodes lying on the edges. The linear system includes node-to-node dependencies so my guess is that I need to create an halo surrounding each subdomain, to allow connections of edge nodes with neighbour subdomains ones Apart from that, my question is if Petsc accept a previously made partitioning (maybe taking into account of halo) using the data structures coming out of it Has anybody of you ever faced a similar problem? Thanks in advance Ivano
