Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: Re: [OMPI devel] 1.7.4rc2r30168 - odd run failure
From: Paul Hargrove (phhargrove_at_[hidden])
Date: 2014-01-10 15:59:14


Ralph,

This is the front end of a production cluster at NERSC.
So, I would not be surprised if there is a fairly restrictive firewall
configuration in place.
However, I could't find a way to query the configuration.

The verbose output with (only) "-mca oob_base_verbose 10" is attached.

On a hunch, I tried adding "-mca oob_tcp_if_include lo" and IT WORKS!
Is there some reason why the loopback interface is not being used
automatically for the single-host case?
That would seem to be a straight-forward solution to this issue.

-Paul

On Fri, Jan 10, 2014 at 12:43 PM, Ralph Castain <rhc_at_[hidden]> wrote:

> Bingo - the proc can't send a message to the daemon to tell it "i'm alive
> and need my nidmap data". I suspect we'll find that your headnode isn't
> allowing us to open a socket for communication between two processes on it,
> and we don't have (yet) a pipe-like mechanism to replace it.
>
> Can verify that by putting "-mca oob_base_verbose 10" on the cmd line -
> should see the oob indicate that it fails to make the connection back to
> the daemon
>
>
> On Jan 10, 2014, at 12:33 PM, Paul Hargrove <phhargrove_at_[hidden]> wrote:
>
> Ralph,
>
> Configuring using a proper --with-tm=... I find that I *can* run a
> singleton in an allocation ("qsub -I -l nodes=1 ....").
> The case of a singleton on the front end is still failing.
>
> The verbose output using "-mca state_base_verbose 5 -mca plm_base_verbose
> 5 -mca odls_base_verbose 5" is attached.
>
> -Paul
>
>
> On Fri, Jan 10, 2014 at 12:12 PM, Ralph Castain <rhc_at_[hidden]> wrote:
>
>>
>> On Jan 10, 2014, at 11:04 AM, Paul Hargrove <phhargrove_at_[hidden]> wrote:
>>
>> On Fri, Jan 10, 2014 at 10:41 AM, Paul Hargrove <phhargrove_at_[hidden]>wrote:
>>
>>>
>>> On Fri, Jan 10, 2014 at 10:08 AM, Ralph Castain <rhc_at_[hidden]>wrote:
>>>
>>>> ??? that was it? Was this built with --enable-debug?
>>>
>>>
>>> Nope, I missed --enable-debug. Will try again.
>>>
>>>
>> OK, Take-2 below.
>> There is an obvious "recipient list is empty!" in the output.
>>
>>
>> That one is correct and expected - all it means is that you are running
>> on only one node, so mpirun doesn't need to relay messages to another daemon
>>
>>
>> -Paul
>>
>> $ mpirun -mca btl sm,self -np 2 -mca grpcomm_base_verbose 5 -mca
>> orte_nidmap_verbose 10 examples/ring_c'
>> [cvrsvc01:21200] mca:base:select:(grpcomm) Querying component [bad]
>> [cvrsvc01:21200] mca:base:select:(grpcomm) Query of component [bad] set
>> priority to 10
>> [cvrsvc01:21200] mca:base:select:(grpcomm) Selected component [bad]
>> [cvrsvc01:21200] [[45961,0],0] grpcomm:base:receive start comm
>> [cvrsvc01:21200] [[45961,0],0] orte:util:encode_nidmap
>> [cvrsvc01:21200] [[45961,0],0] grpcomm:bad:xcast sent to job [45961,0]
>> tag 1
>> [cvrsvc01:21200] [[45961,0],0] grpcomm:xcast:recv: with 1135 bytes
>> [cvrsvc01:21200] [[45961,0],0] orte:daemon:send_relay - recipient list is
>> empty!
>> [cvrsvc01:21200] [[45961,0],0] orte:util:encode_nidmap
>> [cvrsvc01:21200] [[45961,0],0] orte:util:build:daemon:nidmap packed 55
>> bytes
>> [cvrsvc01:21200] [[45961,0],0] PROGRESSING COLL id 0
>> [cvrsvc01:21200] [[45961,0],0] ALL LOCAL PROCS FOR JOB [45961,1]
>> CONTRIBUTE 2
>> [cvrsvc01:21200] [[45961,0],0] PROGRESSING COLL id 1
>> [cvrsvc01:21200] [[45961,0],0] ALL LOCAL PROCS FOR JOB [45961,1]
>> CONTRIBUTE 2
>> [cvrsvc01:21200] [[45961,0],0] PROGRESSING COLL id 2
>> [cvrsvc01:21200] [[45961,0],0] ALL LOCAL PROCS FOR JOB [45961,1]
>> CONTRIBUTE 2
>> [cvrsvc01:21202] mca:base:select:(grpcomm) Querying component [bad]
>> [cvrsvc01:21202] mca:base:select:(grpcomm) Query of component [bad] set
>> priority to 10
>> [cvrsvc01:21202] mca:base:select:(grpcomm) Selected component [bad]
>> [cvrsvc01:21202] [[45961,1],0] grpcomm:base:receive start comm
>> [cvrsvc01:21202] [[45961,1],0] ORTE_ERROR_LOG: Data for specified key not
>> found in file
>> /global/homes/h/hargrove/GSCRATCH/OMPI/openmpi-trunk-linux-x86_64-gcc/openmpi-1.9a1r30215/orte/runtime/orte_globals.c
>> at line 503
>> [cvrsvc01:21203] mca:base:select:(grpcomm) Querying component [bad]
>> [cvrsvc01:21203] mca:base:select:(grpcomm) Query of component [bad] set
>> priority to 10
>> [cvrsvc01:21203] mca:base:select:(grpcomm) Selected component [bad]
>> [cvrsvc01:21203] [[45961,1],1] grpcomm:base:receive start comm
>> [cvrsvc01:21203] [[45961,1],1] ORTE_ERROR_LOG: Data for specified key not
>> found in file
>> /global/homes/h/hargrove/GSCRATCH/OMPI/openmpi-trunk-linux-x86_64-gcc/openmpi-1.9a1r30215/orte/runtime/orte_globals.c
>> at line 503
>>
>>
>>
>> This is very weird - it appears that your procs are looking for hostname
>> data prior to receiving the necessary data. Let's try jacking up the debug,
>> I guess - add "-mca state_base_verbose 5 -mca plm_base_verbose 5 -mca
>> odls_base_verbose 5"
>>
>> Sorry that will be rather wordy, but I don't understand the ordering you
>> show above. It's like your procs are skipping a bunch of steps in the
>> startup procedure.
>>
>> Out of curiosity, if you do have an allocation on run on it, does it work?
>>
>>
>>
>> --
>> Paul H. Hargrove PHHargrove_at_[hidden]
>> Future Technologies Group
>> Computer and Data Sciences Department Tel: +1-510-495-2352
>> Lawrence Berkeley National Laboratory Fax: +1-510-486-6900
>> _______________________________________________
>> devel mailing list
>> devel_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>
>>
>>
>> _______________________________________________
>> devel mailing list
>> devel_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>
>
>
>
> --
> Paul H. Hargrove PHHargrove_at_[hidden]
> Future Technologies Group
> Computer and Data Sciences Department Tel: +1-510-495-2352
> Lawrence Berkeley National Laboratory Fax: +1-510-486-6900
> <log-fe.bz2>_______________________________________________
> devel mailing list
> devel_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>
>
>
> _______________________________________________
> devel mailing list
> devel_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>

-- 
Paul H. Hargrove                          PHHargrove_at_[hidden]
Future Technologies Group
Computer and Data Sciences Department     Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900