Joseph Schuchart

The context is in the referenced PR (#12318) but that's a monster so it might not have been clear. > Based on the content of this PR I cannot figure...

Rebased and fixed conflicts.

The CUDA test fails because we detect CUDA but NVCC is not available (at least in `PATH`). We'll need to check for NVCC to be available and bail out if...

I updated the PR to have precious variables `NVCC`, `HIPCC`, `NVCCFLAGS`, and `HIPCCFLAGS` so that they can be specified on the command line and show up at the bottom `./configure...

As I said earlier: please provide a patch for changes you want. I've run out of time to spend on this.

Sounds like the file limits on that machine are too low. Try running `ulimit -n 2048` to increase that limit. See https://stackoverflow.com/questions/34588/how-do-i-change-the-number-of-open-files-limit-in-linux for details.

@bosilca AFAIK, this is the request we hand out if the operation completes immediately, e.g., if it fits the eager protocol.

You're right that `ompi_request_empty_send` is missing from that list. Maybe these requests should be caught by the check for the `req_mpi_object` in the line below the new check. Currently, they...

@janjust Looks like this might be triggered by failed initialization of ucp. The message is definitely misleading.

I don't have a good explanation for what is going on here but a few ideas on how to narrow down the problem: 1) Can you observe the problem if...