Comment (by Roland Haas):

This pull request https://bitbucket.org/cactuscode/cactusutils/pull-requests/22/nanchecker-reduce-cost-of-integer-division/diff improves on the current situation in that it only computes the divisions if a NaN is found (which should be seldom).

Note that b/c of the omp parallel (and the fact that the dimensionality of the grid array is unknown) one cannot keep a running ijk[] array to trade divisions for a couple of if statements.

Please review.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2035/nanchecker-should-not-use-integer-division