How to use Intel MPI 5.0?

Dear all,

I noticed that Intel has release Intel MPI 5.0 and I downloaded latest version to test it. The command I used is as follows (it works with latest Intel MPI 4.1.x):

mpiexec -wdir D:\Users\tang\Debug -mapall -hosts 1 n01 1 D:\Users\tang\Debug\fem

However, the following error messages displayed:

[mpiexec@tangDELL] ..\hydra\utils\args\args.c (255): unrecognized argument mapall

[mpiexec@tangDELL] ..\hydra\utils\args\args.c (270): argument matching returned error

[mpiexec@tangDELL] parse_args (..\hydra\ui\mpich\utils.c:3279): error parsing input array

[mpiexec@tangDELL] HYD_uii_mpx_get_parameters (..\hydra\ui\mpich\utils.c:3554): unable to parse user arguments

[mpiexec@tangDELL] ..\hydra\ui\mpich\mpiexec.c (438): error parsing parameters

Is there anything I missed to use latest MPI?

Thanks,

Zhanghong Tang