Re: [Gretl-users] Hansl programming performance
On Tue, 3 Jun 2014, Allin Cottrell wrote:
> (5) Matrices are longer than series (I'm talking about
computer memory
> usage)?
Not sure what you mean there. Both gretl matrices and gretl series
are pretty "light" in memory usage; neither of them require much
more than (number of numerical values) times (size of
double-precision floating point value).
One thing that may have some impact on performance is unnecessary creation
and/or resizing of matrices. Anything that allocates memory is by itself
expensive; how much, it depends on many many factors. But if you want to
maximise performance, try to re-use allocated memory as much as possible.
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Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
r.lucchetti(a)univpm.it
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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