undefined symbol `MPI_recv'

When I link my M开发者_JAVA技巧PI C program, I get the following error: undefined reference to MPI_recv.

What should i do to solve this error?

It is MPI_Recv, not MPI_recv.

You need to link to the MPI library that provides the MPI_recv() function. For example, with gcc, you would add an option like -lmpi to your compile line.

MPI implementations usually provide a compilation utility scripts that basically sets up the correct compilation & linking environment, libraries and calls gcc (e.g.) with the correct command line.

Try this:

mpicc my_prog.c

Hope this helps.

A.