On 01/01/2013 07:58 AM US Central Time, behzad moradi wrote:

can't exec '/Applications/Xcode.app/Contents/Developer/usr/bin/llvm-gcc-4.2' (No such file or directory) What is this error?

Please don't use this mailing list unless it's an MPICH related error. FWIW, you just told us what the error is. You are not able to execute llvm-gcc-4.2. -- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji