PMIx Reference Implementation
PMIx Reference RunTime Environment
PMIx Standard (document)
Latest version of the standard has been released here
Update release of version 2 of the PMIx Standard document is out!
Bug fix release in the v3.0 series
Bug fix release in the v2.1 series
The PMIx v1.2 series has been officially retired. Users are encouraged to upgrade to either the v3.0 release series or the latest release in the v2.1 series.
Latest bug-fix release in the v2.0 series