mpicc
Compiles and links MPI programs written in C
Description
This command can be used to compile and link MPI programs written in
C. It provides the options and any special libraries that are
needed to compile and link MPI programs.
It is important to use this command, particularly when linking programs,
as it provides the necessary libraries.
Command line arguments
- -show
- Show the commands that would be used without
runnning them
- -help
- Give short help
- -echo
- Show exactly what this program is doing.
This option should normally not be used.
- others
- are passed to the compiler or linker. For example, -c
causes files to be compiled, -g selects compilation with debugging
on most systems, and -o name causes linking with the output
executable given the name name.
Environment Variables
The environment variables MPICH_CC and MPICH_CLINKER may be used
to select different C compiler and linker. Note that since
MPICH is built with a particular C and Fortran compiler, change the
compilers used can cause problems. Use this only if you could intermix
code compiled with the different compilers.
Examples
To compile a single file foo.c, use
mpicc -c foo.c
To link the output and make an executable, use
mpicc -o foo foo.o
Combining compilation and linking in a single command
mpicc -o foo foo.c
is a convenient way to build simple programs.
See Also
mpif77, mpicxx, mpif90, mpiexec
Location:mpicc.txt