gem/oq-engine — pull request #1421 by micheles (2014-05-04 09:25:39+00:00)
Title: Added a cache on the GSIMs for the probabilities of no exceedence in the classical calculator

This helps a lot for complex logic trees where the same sources are recomputed with the same GSIM several times. An example is the SHARE computation of FMGlobal with 1280 realizations.