On Thu, 4 Feb 2016 14:10:39 -0600, Ole Ersoy wrote:
Hi,

Has anyone performed any benchmarking on lazy vs. unlazy
Evaluation(s)

Someone did:
  https://issues.apache.org/jira/browse/MATH-1128

or is there some obvious criteria on when to use one vs.
the other?  I only see getResiduals() being called once in the
optimize() method right after a new evaluation is created:

                current = problem.evaluate(new
ArrayRealVector(currentPoint));
                currentResiduals = current.getResiduals().toArray();

Thoughts?

The problem is "getJacobian()", called only in the outer loop.
Method "evaluate" is also called in an inner loop where only
the residuals are used.

Gilles


TIA,
Ole


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