force ntasks tot to be an int, ceil to be conservative

Author: mkolopanis

pyuvsim/uvsim.py

@@ -725,7 +725,7 @@ def run_uvdata_uvsim(
     Ntasks_tot = Ntasks_local * Nsky_parts
     # Sum all the tasks across each node
     Nsky_parts = comm.allreduce(Nsky_parts, op=mpi.MPI.MAX)
-    Ntasks_tot = comm.allreduce(Ntasks_tot, op=mpi.MPI.SUM)
+    Ntasks_tot = int(np.ceil(comm.allreduce(Ntasks_tot, op=mpi.MPI.SUM)))
     if rank == 0 and not quiet:
         if Nsky_parts > 1:
             print(