gem/nhlib — pull request #54 by angri (2012-08-20 15:36:51+00:00)
Title: Optimized call to normal distribution survival function

By avoiding the overhead involved in high-level functions from scipy.stats.norm() and scipy.stats.truncnorm() we can achieve about 20% performance boost for some test cases when many (several tens) IMLs are involved.

Addresses https://bugs.launchpad.net/openquake/+bug/1038917