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Fortran90 (array syntax) very attractive to handle equations which are naturally written in Tensor (multi-dimensional) form
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12 independent field values defined on a mesh with black holes excised -- non trivial dynamic irregularity as holes rotate and spiral into each other in interesting domain
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Irregular dynamic mesh is not so natural in (parallel) Fortran 90 and one needs technology (including distributed data structures like DAGH) to support adaptive finite difference codes.
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Separate Holes are simulated till Merger
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0.7
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6.9
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13.2
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Time
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