HP-MPI User's Guide (11th Edition)

Understanding HP-MPI

Compilation wrapper script utilities

Chapter 3 45

Compilation wrapper script utilities

HP-MPI provides compilation utilities for the languages shown in

Table 3-1. In general, if a particular compiler is desired, it is best to set

the appropriate environment variable such as MPI_CC. Without such a

setting, the utility script will search the PATH and a few default

locations for a variety of possible compilers. Although in many

environments this search produces the desired results, explicitly setting

the environment variable is safer. Command line options take

precedence over environment variables.

Compiling applications

The compiler you use to build HP-MPI applications depends upon which

programming language you use. The HP-MPI compiler utilities are shell

scripts that invoke the appropriate native compiler. You can pass the

pathname of the MPI header files using the -I option and link an MPI

library (for example, the diagnostic or thread-compliant library) using

the -Wl, -L or -l option.

By default, HP-MPI compiler utilities include a small amount of debug

information in order to allow the TotalView debugger to function.

However, certain compiler options are incompatible with this debug

information. Use the -notv option to exclude debug information. The

-notv option will also disable TotalView usage on the resulting

executable. The -notv option applies to archive libraries only.

Table 3-1 Compiler selection

Language

Wrapper

Script

Environment

Variable

Command Line

C mpicc MPI_CC -mpicc <compiler>

C++ mpiCC MPI_CXX -mpicxx <compiler>

Fortran 77 mpif77 MPI_F77 -mpif77 <compiler>

Fortran 90 mpif90 MPI_F90 -mpif90 <compiler>

mpisyntax MPI_WRAPPER_

SYNTAX

-mpisyntax \