[Nek5000-users] Nek: abnormal termination by signal 11

[nek5000-users at lists.mcs.anl.gov]

Hi,
Hanging during restart (at least one of the possible reasons) was fixed 
in the commit merged yesterday.
regards
adam

On 15/03/17 13:55, nek5000-users at lists.mcs.anl.gov wrote:
> When you do a restart and it hangs, what's your old and new lx1? Is this a single or double precision field file?
>   
>   
> -----Original message-----
>> From:nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
>> Sent: Friday 10th March 2017 17:52
>> To: nek5000-users at lists.mcs.anl.gov
>> Subject: Re: [Nek5000-users] Nek: abnormal termination by signal 11
>>
>> Jan,
>>
>> Memory layout on different architectures is different...
>>
>> There is some sort of memory issue in the restart process under the scenario
>> you described --- it is entirely my fault --- but I've not been able to readily track it down.
>> Given that this situation does not often arise and that we have a standard fix, I've
>> focused on other issues, but I apologize for causing you to lose time on this.
>>
>> Paul
>>
>> ________________________________________
>> From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
>> Sent: Friday, March 10, 2017 8:39 AM
>> To: nek5000-users at lists.mcs.anl.gov
>> Subject: Re: [Nek5000-users] Nek: abnormal termination by signal 11
>>
>> Hi Stefan and Paul,
>> I just made a short test and it seems Pauls advice actually helped. I increased lelt so that the total memory available  stayed the same and the run started fine.
>> This was with a single restart file with MPIIO on the IBM big endian system, but I think  I also had some restart files created on Intel.
>> I will look into the memory footprint and the new master next week.
>> Any idea why this only happens on IBM?
>> Many thanks for the advice,
>> Jan
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