Thanks Gustavo, I have managed to get it working now.
The problem was indeed the difference between Ubuntu Packages, ( I assume
so.) and after figuring out the PATH mess it runs and communicates well.
Thank you so much for the help!
On Sat, Oct 23, 2010 at 7:02 PM, Gustavo Correa wrote:
> Hi Br
Hi Brandon
Yes, as others said and you figured, version is important,
and installing from source is not hard, probably will save you more headaches
than
installing the packages (which normally vary with the Linux distro version).
Regarding the environment variables.
You need to set the PATH and
Hi, so yes I'm trying to install the source but after installing, it does
not seem to be able to locate the libraries.
mpirun gives the error
libopen-rte.so.0: cannot open shared object file: No such file or directory
Of course, I have seen this faq
http://www.open-mpi.org/faq/?category=running#a
On 23 Oct 2010, at 17:58, Brandon Fulcher wrote:
> So I checked the OMPI package details on both machines, they each are running
> Open MPI 1.3. . . but then I noticed that the packages are different
> versions. Basically, the slave is running the previous Ubuntu release, and
> the master is
I suppose the two machines you have are of the same type? That they are both
running 32-bit or 64-bit?
On Sat, Oct 23, 2010 at 10:07 AM, Brandon Fulcher wrote:
> That might very well be my problem. The slave is running 9.10 (Karmic) and
> the Master is running 10.04 (Lucid.) I forgot that Mave
That might very well be my problem. The slave is running 9.10 (Karmic) and
the Master is running 10.04 (Lucid.) I forgot that Maverick came out this
month.
I will try compiling from source and seeing what happens after that.
Danke Stefan,
and thank you again Jeff & everyone else.
On Sat, Oct 2
Am 23.10.2010 18:58, schrieb Brandon Fulcher:
Hello,
> So I checked the OMPI package details on both machines, they each are
> running Open MPI 1.3. . . but then I noticed that the packages are
> different versions. Basically, the slave is running the previous
> Ubuntu release, and the master i
Ah Jeff, maybe you are on to something.
So now that I understand what you mean, launching
mpirun -np 3 -hostfile hosts.txt hostname
returns two copies of the local system name and then the by now very
familiar
--
mpirun noti
What if you run w 2 hosts?
It's unusual that no indication of the actual error is shown.
Are you running exactly the same version of OMPI on both nodes?
Sent from my PDA. No type good.
On Oct 23, 2010, at 12:37 PM, "Brandon Fulcher" wrote:
> Hi Jeff, thanks for responding.
>
> mpirun host
Hi Jeff, thanks for responding.
mpirun hostname returns the name of the local machine.
On Sat, Oct 23, 2010 at 11:27 AM, Jeff Squyres (jsquyres) <
jsquy...@cisco.com> wrote:
> I didn't notice if it came up earlier - are you running the same version of
> OMPI on each node?
>
> What happens if you
Hi Gustavo, thank you for the response.
I have been using Linux for only a couple years so I'm not very familiar
with ssh. However, i followed the instructions on this site:
https://source.ggy.bris.ac.uk/wiki/Configure_ssh_for_MPI
and I can ssh into the remote machine without a password prompt.
I didn't notice if it came up earlier - are you running the same version of
OMPI on each node?
What happens if you try mpirunning hostname (ie not an MPI app)?
Sent from my PDA. No type good.
On Oct 23, 2010, at 12:07 PM, "Brandon Fulcher" wrote:
> Hi Jody, thank you for the response.
>
> S
Hi Jody, thank you for the response.
Specifying the number of processes in the manner you provided
(mpirun -np 2 hostfile hosts.txt ilk)
Does indeed succeed. All processes are launched on my local machine which
has two slots. If I change the command to:
mpirun -np 3 hostfile hosts.txt ilk
It
Hi Brandon
Does it work if you try this:
mpirun -np 2 hostfile hosts.txt ilk
(see http://www.open-mpi.org/faq/?category=running#simple-spmd-run)
jody
On Sat, Oct 23, 2010 at 4:07 PM, Brandon Fulcher wrote:
> Thank you for the response!
>
> The code runs on my own machine as well. Both machin
Hi Brandon
You must have passwordless ssh setup across the machines.
Check if you can ssh passwordless back and forth across all node pairs,
with the host names or IPs you have in your host.txt file.
Your /etc/host (or whatever Ubuntu uses to match hosts and IPs) must be
consistent (perhaps the s
Thank you for the response!
The code runs on my own machine as well. Both machines, in fact. And I did
not build MPI but installed the package from the ubuntu repositories.
The problem occurs when I try to run a job using two machines or simply try
to run it on a slave from the master.
the act
since you said you're new to MPI, what command did you use to run the 2
processes?
On Fri, Oct 22, 2010 at 9:58 PM, David Zhang wrote:
> your code works on mine machine. could be they way you build mpi.
>
> On Fri, Oct 22, 2010 at 7:26 PM, Brandon Fulcher wrote:
>
>> Hi, I am completely new to
your code works on mine machine. could be they way you build mpi.
On Fri, Oct 22, 2010 at 7:26 PM, Brandon Fulcher wrote:
> Hi, I am completely new to MPI and am having trouble running a job between
> two cpus.
>
> The same thing happens no matter what MPI job I try to run, but here is a
> simp
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