[mpich-discuss] Deprecated C++ bindings

[Raffenetti, Ken]

Checking return codes will work, but another option that you might want to try is to install a custom error handler function.

https://www.mpich.org/static/docs/v3.4.x/www3/MPI_Comm_create_errhandler.html

Your error handler callback function will then be invoked by MPI at the detection of an error, before returning back to the application.

Ken

On 1/24/22, 1:56 PM, "Mccall, Kurt E. (MSFC-EV41) via discuss" <discuss at mpich.org> wrote:

    Hi,

    Up to now I’ve been using this in my C++ code: 

    MPI_Comm_set_errhandler(intercom, MPI::ERRORS_THROW_EXCEPTIONS);

    and hoping the MPI function calls would throw MPI::Exception when there is a problem.   

    Is the recommended approach now just to test the return values from the functions?

    Using 4.0rc3.

    Thanks,
    Kurt