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From: McCalla, Mac (macmccalla_at_[hidden])
Date: 2007-05-24 21:36:11


Sorry, i see you did that earlier. have you tried the mpirun with -v
parameter as well?

________________________________

From: lam-bounces_at_[hidden] [mailto:lam-bounces_at_[hidden]] On Behalf
Of K. Charoenpornwattana Ter
Sent: 24 May 2007 19:57
To: General LAM/MPI mailing list
Subject: Re: LAM: lamboot is ok, mpirun is not

[ter_at_uftoscar ~]$ which mpirun
/opt/lam-7.1.3/bin/mpirun
[ter_at_uftoscar ~]$ cexec which mpirun
************************* oscar_cluster *************************
--------- oscarnode1---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode2---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode3---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode4---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode5---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode6---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode7---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode8---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode9---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode10---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode11---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode12---------
/opt/lam-7.1.3/bin/mpirun
--------- oscarnode13---------
/opt/lam-7.1.3/bin/mpirun

Thanks

On 5/24/07, McCalla, Mac <macmccalla_at_[hidden] > wrote:

        Hi,
            just for grins, what does "which mpirun" show? ......
         
        mac mccalla

________________________________

        From: lam-bounces_at_[hidden] [mailto:lam-bounces_at_[hidden]]
On Behalf Of K. Charoenpornwattana Ter
        Sent: 24 May 2007 14:47
        To: General LAM/MPI mailing list
        Subject: Re: LAM: lamboot is ok, mpirun is not
        
        
        
        On 5/24/07, Jeff Squyres <jsquyres_at_[hidden]> wrote:
        

                That is just weird -- I don't think I've seen a case
where tping
                worked (implying that inter-lamd communication is
working), but
                running applications did not.

        Yes, it's kinda weird. I just noticed something, After running
mpirun, tping doesn't work anymore, See below.
        
        [ter_at_uftoscar test]$ lamboot -v host
        LAM 7.1.3/MPI 2 C++/ROMIO - Indiana University
        
        n-1<12514> ssi:boot:base:linear: booting n0 (uftoscar)
        ...
        n-1<12514> ssi:boot:base:linear: finished
        [ter_at_uftoscar test]$ tping -c 3 n0-13
          1 byte from 13 remote nodes and 1 local node: 0.007 secs
          1 byte from 13 remote nodes and 1 local node: 0.005 secs
          1 byte from 13 remote nodes and 1 local node: 0.006 secs
        
        3 messages, 3 bytes (0.003K), 0.017 secs (0.340K/sec)
        roundtrip min/avg/max: 0.005/0.006/0.007
        [ter_at_uftoscar test]$ mpicc ring.c -o ring.out
<---LAM's mpicc
        [ter_at_uftoscar test]$ mpirun -np 13 ring.out
        <freeze> (so I pressed Ctrl-C to cancel)
        
        ********************* WARNING ***********************
        This is a vulnerable region. Exiting the application
        now may lead to improper cleanup of temporary objects
        To exit the application, press Ctrl-C again
        ********************* WARNING ************************
        [ter_at_uftoscar test]$ tping -c 3 n0-13
        <freeze> :-(
        

                The only thing that I can think of is that there is some
firewalling
                in place that only allows arbitrary UDP traffic
through...? (inter-
                lamd traffic is UDP, not TCP) That doesn't seem to make
sense,
                though, if MPICH works (cexec uses ssh, which is most
certainly
                allowed). But can you triple check that there are no
firewalls tcp
                rules in place that restrict UDP/TCP traffic? (e.g.,
iptables)

        I did. no firewall is running on any nodes.
        
        [root_at_uftoscar ~]# service iptables status
        Firewall is stopped.
        [root_at_uftoscar ~]# service pfilter status
        pfilter is stopped
        [root_at_uftoscar ~]# cexec service iptables status
        ************************* oscar_cluster
*************************
        --------- oscarnode1---------
        Firewall is stopped.
        .....
        --------- oscarnode13---------
        Firewall is stopped.
        
        [root_at_uftoscar ~]# cexec service pfilter status <-- I already
removed pfilter.
        ************************* oscar_cluster
*************************
        --------- oscarnode1---------
        pfilter: unrecognized service
        ....
        --------- oscarnode13---------
        pfilter: unrecognized service
         
        

                Also try running tping / mpirun / lamexec from a node
other than the
                origin (i.e., the node you lambooted from).

        I did. same problem.
        

                On May 23, 2007, at 11:32 PM, K. Charoenpornwattana Ter
wrote:
                
> Try some simple tests:
>
> - Does "tping -c 3" run successfully? (It should ping
all the lamd's)
>
> [ter_at_uftoscar test]$ tping -c 3 n0-13
> 1 byte from 13 remote nodes and 1 local node: 0.006
secs
> 1 byte from 13 remote nodes and 1 local node: 0.005
secs
> 1 byte from 13 remote nodes and 1 local node: 0.005
secs
>
> 3 messages, 3 bytes (0.003K), 0.016 secs (0.368K/sec)
> roundtrip min/avg/max: 0.005/0.005/0.006
>
>
> - Does "lamexec N hostname" run successfully? (It
should run
> "hostname" on all the booted nodes)
>
> No, it doesn't work. It only show headnode's hostname.
See below:
>
> [ter_at_uftoscar ~]$ lamexec N hostname
> uftoscar.latech
> <freeze>
>
> I, however, can execute "cexec hostname" with no
problem.
>
> - When you "mpirun -np 15 ring.out", do you see
ring.out executing on
> all the nodes? (i.e., if you ssh into each of the
nodes and run ps,
> do you see it running?
>
> I only see one ring.out run on headnode, no ring.out
running on
> other nodes.
>
>
> Thanks
> Kulathep
> _______________________________________________
> This list is archived at
http://www.lam-mpi.org/MailArchives/lam/
                
                
                --
                Jeff Squyres
                Cisco Systems
                
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