Cactus Code Thorn CarpetCG
Thorn Author(s)     : Ian Hawke <hawke@aei.mpg.de>
                    : Erik Schnetter <eschnett@aei.mpg.de>
Thorn Maintainer(s) : Ian Hawke <hawke@aei.mpg.de>
                    : Erik Schnetter <eschnett@aei.mpg.de>
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Purpose of the thorn:

A conjugate gradient elliptic solver for Carpet using the TAT
interface. Essentially a straight modification of TATCG using
TATJacobi as a template.