Hi,
thank you Gilles for your suggestion. I tried: mpirun --prefix <path to Open
MPI> --host <public IP> hostname, then it works.
I’m sure both IPs are the ones of the VM on which mpirun is running, and they
are unique.
I also configured Open MPI with --enable-mpirun-prefix-by-default, but I still
need to add --prefix <path to Open MPI> to get mpirun work.
I used: ./configure --enable-mpirun-prefix-by-default ="<path to Open MPI> "
make
make install
Did I miss something or I misunderstood the way to configure Open MPI?
When I run: ssh < internal/public IP > `which orted`
The output is: Warning: Permanently added < internal/public IP > ' (ECDSA) to
the list of known hosts.
/usr/local/bin/orted
Is it all right?
Cheers,
Ping
Von: users [mailto:users-boun...@open-mpi.org] Im Auftrag von Gilles
Gouaillardet
Gesendet: Donnerstag, 2. Juni 2016 17:06
An: Open MPI Users
Betreff: Re: [OMPI users] Firewall settings for MPI communication
are you saying both IP are the ones of the VM on which mpirun is running ?
orted is only launched on all the machines *except* the one running mpirun.
can you double/triple check the IPs are ok and unique ?
for example, mpirun --host <internal IP> /sbin/ifconfig -a
can you also make sure Open MPI is installed on all your VMs in the same
directory ?
also make sure Open MPI has all the dependencies on all the VMs
ssh xxx ldd `which orted`
should show no missing dependency
generally speaking, I recommend you configure Open MPI with
--enable-mpirun-prefix-by-default
you can also try to replace
mpirun
with
`which mpirun`
or
mpirun --prefix <path to Open MPI>
Cheers,
Gilles
On Thursday, June 2, 2016, Ping Wang <ping.w...@asc-s.de> wrote:
Hi,
I've installed Open MPI v1.10.2. Every VM on the cloud has two IPs (internal
IP, public IP).
When I run: mpirun --host <internal IP> hostname, the output is the hostname of
the VM.
But when I run: mpirun --host <public IP> hostname, the output is
bash: orted: command not found
--------------------------------------------------------------------------
ORTE was unable to reliably start one or more daemons.
This usually is caused by:
* not finding the required libraries and/or binaries on
one or more nodes. Please check your PATH and LD_LIBRARY_PATH
settings, or configure OMPI with --enable-orterun-prefix-by-default
* lack of authority to execute on one or more specified nodes.
Please verify your allocation and authorities.
* the inability to write startup files into /tmp (--tmpdir/orte_tmpdir_base).
Please check with your sys admin to determine the correct location to use.
* compilation of the orted with dynamic libraries when static are required
(e.g., on Cray). Please check your configure cmd line and consider using
one of the contrib/platform definitions for your system type.
* an inability to create a connection back to mpirun due to a
lack of common network interfaces and/or no route found between
them. Please check network connectivity (including firewalls
and network routing requirements).
Both IPs are the IP of the VM where MPI is running. Did I do something wrong in
the configuration?
Thanks for any help.
Ping
-----Ursprüngliche Nachricht-----
Von: users [mailto:users-boun...@open-mpi.org <javascript:;> ] Im Auftrag von
Jeff Squyres (jsquyres)
Gesendet: Mittwoch, 1. Juni 2016 15:02
An: Open MPI User's List
Betreff: Re: [OMPI users] Firewall settings for MPI communication
In addition, you might want to consider upgrading to Open MPI v1.10.x (v1.6.x
is fairly ancient).
> On Jun 1, 2016, at 7:46 AM, Gilles Gouaillardet
> <gilles.gouaillar...@gmail.com <javascript:;> > wrote:
>
> which network are your VMs using for communications ?
> if this is tcp, then you also have to specify a restricted set of
> allowed ports for the tcp btl
>
> that would be something like
> mpirun --mca btl_tcp_dynamic_ports 49990-50010 ...
>
> please double check the Open MPI 1.6.5 parameter and syntax with
> ompi_info --all (or check the archives, I think I posted the correct
> command line a few weeks ago)
>
> Cheers,
>
> Gilles
>
> On Wednesday, June 1, 2016, Ping Wang <ping.w...@asc-s.de <javascript:;> >
> wrote:
> I'm using Open MPI 1.6.5 to run OpenFOAM in parallel on several VMs on
> a cloud. mpirun hangs without any error messages. I think this is a
> firewall issue. Because when I open all the TCP ports(1-65535) in the
> security group of VMs, mpirun works well. However I was suggested to
> open as less ports as possible. So I have to limit MPI to run on a
> range of ports. I opened the port range 49990-50010 for MPI
> communication. And use command
>
>
>
> mpirun --mca oob_tcp_dynamic_ports 49990-50010 -np 4 --hostfile machines
> simpleFoam –parallel.
>
>
>
> But it still hangs. How can I specify a port range that OpenMPI will use? I
> appreciate any help you can provide.
>
>
>
> Best,
>
> Ping Wang
>
>
>
> <image001.png>
>
> ------------------------------------------------------
>
> Ping Wang
>
> Automotive Simulation Center Stuttgart e.V.
>
> Nobelstraße 15
>
> D-70569 Stuttgart
>
> Telefon: +49 711 699659-14
>
> Fax: +49 711 699659-29
>
> E-Mail: ping.w...@asc-s.de <javascript:;>
>
> Web: http://www.asc-s.de
>
> Social Media: <image002.gif>/asc.stuttgart
>
> ------------------------------------------------------
>
>
>
>
>
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