plm/base: fixed the hosts filtering

[karasevb]

Reseting the ORTE_NODE_FLAG_MAPPED flag after hosts filtering, this
flag is used subsequently and can be affect to the node mapping logic

Signed-off-by: Boris Karasev karasev.b@gmail.com

[karasevb]

This PR fixes the nodes ranking failure which is reproduced as described below:

Slurm sbatch file for reproduce the problem:

#!/bin/bash
#SBATCH --job-name=test -w node[1-2]
#SBATCH --nodes=2 --ntasks-per-node=8
#SBATCH --time=01:00:00 --partition=debug

mpirun -n 2 -bind-to core -map-by node -H node1,node2 hostname

output:

[node1:25268] [[52094,0],0] ORTE_ERROR_LOG: Fatal in file base/rmaps_base_ranking.c at line 646
[node1:25268] [[52094,0],0] ORTE_ERROR_LOG: Fatal in file base/odls_base_default_fns.c at line 531

[jsquyres]

@karasevb Please do not open pull request branches on the main Open MPI repository.

[artpol84]

Sorry about that.
Obviously it was a mistake