On Mon, 8 Feb 2016, John Peterson wrote:

> Also, remember that setting values in NumericVectors is already a fairly
> indirect operation.  For example, if you are using PETSc, the values are
> cached and communicated only when the vector is closed.

We have seen speedup in some applications by using the vectorized
NumericVector::insert() methods instead of NumericVector::set().  A
few fewer virtual function calls made a small but noticeable
difference.
---
Roy

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