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Subject: Re: [OMPI devel] Error after ompi-restart
From: Josh Hursey (jjhursey_at_[hidden])
Date: 2008-11-04 11:00:28


Leonardo,

Sorry I have been really slow in replying, I have been pretty swamped
lately.

What version of the trunk are you using? I've been seeing C/R failures
starting around r19872, but I haven't had time to focus on trying to
find out what is going wrong.

You may be right in your assessment below, I'll try to look into it
this week. If you find that making this changes fixes your problem,
let me know and I'll apply the patch.

Thanks,
Josh

On Nov 4, 2008, at 10:16 AM, Leonardo Fialho wrote:

> I´m not sure, but I think that line 659 on file orte/mca/ess/env/
> ess_env_module.c should contain
>
> if (ORTE_SUCCESS != (ret =
> orte_ess_base_build_nidmap(orte_process_info.sync_buf, &nidmap,
> *jmap*))) {
>
> But actually it contains
>
> if (ORTE_SUCCESS != (ret =
> orte_ess_base_build_nidmap(orte_process_info.sync_buf, &nidmap,
> *&jmap->pmap*))) {
>
> No?
>
> Leonardo
>
>
> Leonardo Fialho escribió:
>> Hi All,
>>
>> I think that exists an error in the trunk version while trying to
>> restore a checkpoint.
>>
>> The function orte_util_decode_pidmap while attempts to execute the
>> following code
>>
>> /* store the data */
>> for (i=0; i < num_procs; i++) {
>> pmap.node = nodes[i];
>> pmap.local_rank = local_rank[i];
>> pmap.node_rank = node_rank[i];
>> opal_value_array_set_item(procs, i, &pmap);
>> }
>>
>> produces a segmentation fault
>>
>> [nodo2:18027] *** Process received signal ***
>> [nodo2:18027] Signal: Segmentation fault (11)
>> [nodo2:18027] Signal code: Address not mapped (1)
>> [nodo2:18027] Failing at address: (nil)
>>
>> I was trying to trace the problem and I think that it occurs in the
>> line opal_value_array_set_item(procs, i, &pmap);
>>
>> Thanks,
>>
>
>
> --
> Leonardo Fialho
> Computer Architecture and Operating Systems Department - CAOS
> Universidad Autonoma de Barcelona - UAB
> ETSE, Edifcio Q, QC/3088
> http://www.caos.uab.es
> Phone: +34-93-581-2888
> Fax: +34-93-581-2478
>
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