mpi_test
Various standalone C++ MPI tests/examples/benchmarks.
If CUDA is detected, additional binaries can be built.
| name | Kind | Reqs. | Ranks | Description |
|---|---|---|---|---|
hello-world |
Test | MPI | 1+ | an MPI hello-world |
one-sided |
Test | MPI | 2 | one-sided communication |
one-sided-gpu |
Test | MPI+CUDA | 2 | one-sided communication on GPU buffer |
persistent |
Benchmark | MPI | 2 | ping-pong time for persistent Send/Recv |
Build
mkdir build && cd build
cmake ..
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).