CRAY-XT3 - PGI and PathScale

[Teodoro Laino]

FYI:
I updated today a list of files that require an O0 optimization  
level, due to bugs in the portland compiler, in order
to run cp2k on the full suite of regtests.
The new arch files (CRAY-XT3.popt and CRAY-XT3.sopt) contain the full  
list of those subroutines..

The produced executables (both with PGI and PatchScale) can run  
without crash the full set of regtests.
teo