[petsc-dev] broken MPI link:

[Mark F. Adams]

I get this error:

file could not be opened successfully
Downloaded package mpich from: http://www.mpich.org/files/tarballs/1.5/mpich2-1.5.tar.gz is not a tarball.
[or installed python cannot process compressed files]
* If you are behind a firewall - please fix your proxy and rerun ./configure
  For example at LANL you may need to set the environmental variable http_proxy (or HTTP_PROXY?) to  http://proxyout.lanl.gov 
* Alternatively, you can download the above URL manually, to /yourselectedlocation/mpich2-1.5.tar.gz
  and use the configure option:
  --download-mpich=/yourselectedlocation/mpich2-1.5.tar.gz