[A_Pete]

I want to decompose my simulation domain based on one of the patches in my domain. The patch should be equally distributed to all the processors since I do some calculations on it, which take a lot longer than the flow simulation itself. So my main objective is to equally decompose this patch. Is there a way to decompose a domain based on the decomposition of one specific patch?

Thanks,
Andreas

[zandi]

There are 4 methods for decomposing:
simple
hierarechical
scotch
manual

see this page:
http://openfoamwiki.net/index.php/DecomposePar

and I see "metis" instead of "scotch" but I know in OF 2.3.0 and 2.2.0 the second one is presented.

[A_Pete]

Thanks. I know about these methods for decomposition in OF. The question is, which method I should use to decompose a domain based on the equal distribution of a patch to the number of processors.

[zandi]

hi
what you mean by decompose a patch?
what is the patch?
what is the geometry?
in above methods there is a way to distribute the domain in equal parts.

[A_Pete]

I want to decompose the cells on a patch so that each processor gets the same amount of cells from that patch. But I think that I found a workaround.

I am doing some manual decomposition. I create the decomposition file using setFields and define the processors for each cell based on their coordinates. This was described here before: http://www.cfd-online.com/Forums/ope...computing.html

[zandi]

Originally Posted by A_Pete

I want to decompose the cells on a patch so that each processor gets the same amount of cells from that patch.

scotch is recomended

Originally Posted by A_Pete

I am doing some manual decomposition. This was described here before: http://www.cfd-online.com/Forums/ope...computing.html

the link above is recommended

good luck