[petsc-dev] patch for subcomm

[hong at aspiritech.org]

Stefano:

> It  seems to me that the current code for PetscSubcommSetTypeGeneral
> assumes that all colors will be provided within a range
> [0,max_color_value_provided].
> The current patch (which simply zeroes the subsizes array) extend the code
> when there are holes in the colors' set.
>

I'll check it, then patch petsc-release. Thanks!

Hong
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