Intel® MPI Benchmarks User Guide and Methodology Description

# Checking Results

To check whether your MPI implementation is working correctly, you can use the `CPP` flag `-DCHECK`.

Activate the `CPP` flag `-DCHECK` through the CPPFLAGS variable and recompile the Intel® MPI Benchmarks executable files. Every message passing result from the Intel® MPI Benchmarks are checked against the expected outcome. Output tables contain an additional column called Defects that displays the difference as floating-point numbers.

### Note

The `-DCHECK` results are not valid as real benchmark data. Deactivate `-DCHECK` and recompile to get the proper results.