mpi_test

Various standalone MPI binaries, either tests or examples depending on your perspective. The goal is to compile with no warnings with -Wall -Wextra -Wshadow -pedantic or similarly picky settings.

Adjust Makefile to match your environment, if needed

• uses mpicxx and a few simple flags by default

Build

make

Run all tests

run-all.sh attempts to discover certain environments automatically. You can always override the detected flags yourself if you want.

./run-all.sh | grep 'PASS\|FAIL'

If any tests fails, you can re-run them individually.

Run individual tests

Execute any binary you want using mpirun, or whatever is appropriate for your platform.

Notes on specific platforms

Some Open MPIs use long long for their datatypes, which means we can't support ANSI C++ (-ansi).