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GNU Compilers
The gnu compilers are available in the default
path and are invoked with the cc and
f77 commands for the C/C++ and Fortran77
compilers respectively.
Parallel programmers are strongly
encouraged to use the Intel or Portland Group
compilers to generate more efficient code.
To compile a MPI parallel program with GNU
compilers use the command 'add gnu'
to set up the environment to access the correct
MPICH directories. This will permit mpicc,mpicxx,
and mpif77 to be used to compile C,C++, and
Fortran 77 MPI programs respectively. These commands
will use the GNU compilers and MPICH libraries
built with GNU compilers. To compile a 64 bit gnu code to link
with the mpich libraries, log into login64.hpc.ncsu.edu or login03.hpc.ncsu.edu and use "add gnu_64" instead of "add gnu".
Parallel program performance will likely be
improved by using Intel
compiler or Portland
Group compiler.
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Site contact: Eric Sills, E-mail:
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HPC and Grid Operations, Information Technology Division,
Box 7109, North Carolina State University, Raleigh,
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