cms-sw/cmssw — pull request #3037 by rovere (2014-03-26 17:35:54+00:00)
Title: Thread safe propagators

First bunch of Propagators made thread-safe. At present only 2 are missing:

1. SteppingHelixPropagator
1. Geant4ePropagator

I'd leave them to the respective stakeholders, Slava and Thomas Hauth.

No regression observed in my private tests.