Hi,
The application compiled with OpenMPI-5.0.2 or 5.0.3 runs fine *only if
"mpirun -mca pml ob1" *option is used.
If any other options such as "-mca pml ucx" OR some other btl options OR if
none of the options are used, then it fails with following error:
[n1:0] *** An error occurred in MPI_
Sangam,
A possible explanation is you are using tags higher than MPI_TAG_UB.
The MPI standard states this value is at least 32767. It is possible ob1
allows much higher tags than pml.
Cheers,
Gilles
On Sun, Jul 7, 2024, 22:51 Sangam B via users
wrote:
> Hi,
>
> The application compiled with O
