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Subject: Re: [OMPI devel] 1.7.4rc: yet another launch failure
From: Ralph Castain (rhc_at_[hidden])
Date: 2014-01-22 22:36:23


Here is the offending code:

     /* get the name of the user */
    uid = getuid();
#ifdef HAVE_GETPWUID
    pwdent = getpwuid(uid);
#else
    pwdent = NULL;
#endif
    if (NULL != pwdent) {
        user = strdup(pwdent->pw_name);
    } else {
        orte_show_help("help-orte-runtime.txt",
                       "orte:session:dir:nopwname", true);
        return ORTE_ERR_OUT_OF_RESOURCE;
    }

Is it possible on this platform that you don't have getpwuid? I'm surprised at the code as we could just use the uid instead - not sure why this more stringent test was applied

On Jan 22, 2014, at 7:02 PM, Paul Hargrove <phhargrove_at_[hidden]> wrote:

> On yet another test platform I see the following:
>
> $ mpirun -mca btl sm,self -np 1 examples/ring_c
> --------------------------------------------------------------------------
> Open MPI was unable to obtain the username in order to create a path
> for its required temporary directories. This type of error is usually
> caused by a transient failure of network-based authentication services
> (e.g., LDAP or NIS failure due to network congestion), but can also be
> an indication of system misconfiguration.
>
> Please consult your system administrator about these issues and try
> again.
> --------------------------------------------------------------------------
> [biou2.rice.edu:30021] [[40214,0],0] ORTE_ERROR_LOG: Out of resource in file /home/phh1/SCRATCH/OMPI/openmpi-1.7-latest-linux-ppc32-xlc-11.1/openmpi-1.7.4rc2r30361/orte/util/session_dir.c at line 380
> [biou2.rice.edu:30021] [[40214,0],0] ORTE_ERROR_LOG: Out of resource in file /home/phh1/SCRATCH/OMPI/openmpi-1.7-latest-linux-ppc32-xlc-11.1/openmpi-1.7.4rc2r30361/orte/mca/ess/hnp/ess_hnp_module.c at line 599
> --------------------------------------------------------------------------
> It looks like orte_init failed for some reason; your parallel process is
> likely to abort. There are many reasons that a parallel process can
> fail during orte_init; some of which are due to configuration or
> environment problems. This failure appears to be an internal failure;
> here's some additional information (which may only be relevant to an
> Open MPI developer):
>
> orte_session_dir failed
> --> Returned value Out of resource (-2) instead of ORTE_SUCCESS
> --------------------------------------------------------------------------
>
>
> An "-np 2" run fails in the same manner.
> This is a production system and there is no problem with "whoami" or "id", leaving me doubting the explanation provided by the error message.
>
> [phh1_at_biou2 ~]$ whoami
> phh1
> [phh1_at_biou2 ~]$ id
> uid=44154(phh1) gid=2016(hpc) groups=2016(hpc),3803(hpcusers),3805(sshgw),3808(biou)
>
> The "ompi_info --all" output is attached.
> Please let me know what additional info is needed.
>
> -Paul
>
> --
> 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
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