hi i use a java version of simulated annealing link at: http://jannealer.sourceforge.net/

i have to minimize a function described at this link:
http://www.megaupload.com/?d=R8R7IUG0
(i think you can take it without registration, but if you want, registration is free)
it is a doc file (open with M. Office or Open Office)

the problem is to find the C's parameters that minimized the distances calculated as this mathematical function. I use the S.A. algorithm but i can't find the best parameter for start points, coolrate, start temperature and the ftol..i think that the d's vary all times, so can you suggest me some parameters, it's not so important to find the best min value, something that can take less times (not infinite computation as happens to me, with maximun cpu works and less control on the computer, very heavy computation) ?? The c's can vary depend on the space dimension, for now is 2 but can be n-dimensional with a generic n.
thank you very much!

the d's values are not symmetric, i mean that for example d1,2 have not the same value as d2,1 has happens whene a host1 measure rtt (ping or round trip time) with host 2 and host 2 measure rtt with 1, d1,2 can be = 12 and d2,1 can be =30, not the same sometimes being close or similary but not equal

you can download all my project, it's only less kb, you can finf my function as BaseFunction.java and a test for calculating possible parameter MyAnnealingconfigure.java:

http://www.megaupload.com/?d=EJV3TFKX
(i think you can take it without registration, but if you want, registration is free)

Roby