problem of TMinuit with a large number of parameters
2012-06-30 19:29:24 GMT
I try to use TMinuit with a large number of parameters.
When my number of parameters npar = 125, the ierflag returned by migrad is 1083083267,
however MIGRAD reports convergence. And it crashes when my
program tries to finish.
I made a scan on npar and found that for npar=21 it is fine
but for npar=25 it begins to fail.
I initialized TMinuit in this way:
TMinuit * mnt = new TMinuit(npar)
Could you tell me how can I get rid of this error? Is this error only related to
some memory leak and the fitting result is still reliable?
Thanks in advance!