Did you ever run 'git blame' to find out why some part of MPICH does what it does, only to find the commit responsible was 6a1cbdcfc42 "Added all components in the right places."? I'm personally surprised how often I care about changes made more than 8 years ago. If you, like me, sometimes find yourself needing more history, you can now -- ta-da -- consult http://git.mpich.org/mpich-CVS.git/ When we converted from CVS to subversion back in 2007, the conversion tools could not handle some oddities in our CVS repository, necessitating a wipeoput of history. I guess in the intervening 8 years the conversion tools are more tolerant (once you repack your repository to remove any modules-containing-modules). This is still a disconnected tree from today's MPICH development, but now you can browse the old history with the tools we are familiar with today (no need to build/install cvsps or remember old CVS commands). ==rob -- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA