[mpich-discuss] Usage of MPICH_PORT_RANGE has no impact

[Mark Bonnekessel]

Ok, the solution is listed here:
https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_How_do_I_control_which_ports_MPICH_uses.3F <https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_How_do_I_control_which_ports_MPICH_uses.3F>

I thought i could configure that ports with -env.



> Am 18.09.2015 um 11:03 schrieb Mark Bonnekessel <bonnekessel at mailbox.org>:
> 
> Hi,
> 
> we want to setup a mpi-cluster with raspberry pis.
> The mpi-process run in a docker-container. That’s why we need to configure the ports, that mpi uses.
> 
> We found the env flag MPI_PORT_RANGE / MPIEXEC_PORT_RANGE to configure the port range, that is used by mpi.
> Our problem is, that this flag has no impact to the running mpi-process:
> 	
> root at pi1:/mnt/docker# mpiexec -f machines  -env MPIEXC_PORT_RANGE 10000:10100 -n 2 ./mpi-hello
> [proxy:0:1 at pi2] HYDU_sock_connect (utils/sock/sock.c:172): unable to connect from "pi2" to "pi1" (Connection refused)
> [proxy:0:1 at pi2] main (pm/pmiserv/pmip.c:189): unable to connect to server pi1 at port 35994 (check for firewalls!)
> 
> We tried every other combination of mpirun/mipexec and MPICH_PORT_RANGE/ MPIEXEC_PORT_RANGE.
> 
> Is there any other configuration needed or something, that we are missing to specify the used ports for mpi?
> 
> Regards,
> Mark
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