i am going to do something equivalent to what you suggested, i will fill all expresions of the mapMatrix with zeros, and see how much RAM i consume because of the strings.

Cristobal

On Fri, Oct 22, 2010 at 9:53 AM, Alexei Sheplyakov <alexei.sheplyakov@gmail.com> wrote:

Hi again,

On Fri, Oct 22, 2010 at 12:22 AM, Cristobal Navarro <axischire@gmail.com> wrote:

> i kept investigating,
> based on the test i've made, im almost sure, 99%, that the increase in
> memory usage is due to the segmentation of the expressions.

I don't think the problem has anything to do with GiNaC. Hint: try sticking
ints (instead of ex*) into that map. Check the memory usage, and compare
it with your calculations.

Use a different data structure (perhaps hash map or a sorted array), and
store ex instead of pointers.

Best regards,
Alexei

_______________________________________________
GiNaC-list mailing list
GiNaC-list@ginac.de
https://www.cebix.net/mailman/listinfo/ginac-list