Linktest bisection runs fail on JURECA if not serial. If serial they work fine.
Executing a linktest bisection run on JURECA using fix-gcc10 branch (possibly master as well) causes linktest to hang in my testing. Here is the command:
srun --ntasks=10 --distribution=block:block:block:pack linktest --mode mpi --num-warmup-messages 3 --num-messages 10 --size-messages 16777216 --num-slowest 0 --output linktest_jureca_mpi_1nx10c_16777216B.sion --bisect
Doing the same run with --serial
appended works without a problem. Doing the same run without --bisect
also works.