Ken Raffenetti

test:mpich/ch4/most test:mpich/ch3/most

test:mpich/ch4/most test:mpich/ch3/most

Tests look good. Warning test is unrelated and fixed in another PR, I believe. The lone tcp failure is a `th_taskmaster` timeout on Solaris, which happens from time to time.

Pushed a minor whitespace fixup. This is ready for review.

test:mpich/ch4/most test:mpich/ch3/most

Sorry, forgot to squash my fixup before merging 🤦.

It's tricky when matching is done below the MPI library, since the receiver doesn't know what unexpected messages might be in the queue. With software matching, we could add a...

Maybe we can do the equivalent to an MPI_ANY_TAG/MPI_ANY_SOURCE probe when freeing the communicator and keep it around if something is found in the queue? Debug builds would warn the...

I'll hack up a patch and post it to try.

test:mpich/ch4/ucx