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inheriting the embedded parallelism of PETSc, PetIGA choice also gives access to
the modular options that PETSc has to solve partial differential equations, such
as solvers, preconditioners and time-integration schemes. Due to the inherent
high-order nature of phase-field models and the high-resolution needed to solve
them, PetIGA is a sensible choice as a framework to handle them.
Acknowledgments.
This work was supported by NumPor, the Center for Nu-
merical Porous Media. We would also like to acknowledge the contribution of A.
Ahmadia, who provided the strong scaling results.
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