Thread-safety of ROOT::Math::Factory?

Roofit and RooStats
1

dear rooters,

I’d like to write a package that conducts maxLLH fits using the ROOT::Minuit2::Minuit2Minimizer in several parallel threads.
Are there any experiences if the ROOT::Math::factory::CreateMinimizer that I use for setting up the minimizer is thread safe?
I guess the implementation of ROOT::Math::factory::CreateMinimizer without the PluginHandler is thread safe from reading the code, right? Can I steer somehow which version of is taken ROOT::Math::factory::CreateMinimizer after root is compiled?

I’d like to have guidance on the topic to prevent me spending time on issues that others may have encountered already.

Cheers,
Peter

2

dear all,

OK, I created a ROOT::Minuit2::Minuit2Minimizer instance by hand and the problem is gone. I suspect the PluginManager or any of the objects used by it to be the problem.

But if you have any experiences on multithreading and ROOT::Math to share, please do so.

Cheers,
Peter