Re: STOP NO CHANNEL SELECTED

From: Hantao Jing <jinght_at_mail.ihep.ac.cn>
Date: Mon, 11 Oct 2010 10:11:35 +0800

Dear Mr. Battistoni,
        I am sorry for reply your email later because I have deleted all
completed jobs from our farm. In order to
re-appear the errors, I re-run all the jobs on farm these days. I run
about 90 jobs and two of all appear such errors.
Every job has 50 cycles. There error jobs can complete but no data
output. Please see the attachments.
       Thank you very much!

                                          Best regards,
                                                                                             
Hantao Jing
                                                                                           
2010-10-11

Giuseppe Battistoni wrote:
> Dear Hantao
> your problem is not a technical one. That error message
> is issued when the PEANUT model cannot manage a physics case.
> There is some probability that there is a real bug in the code.
> Please send your input and all others possible additional files
> (routines, data files, etc.) that are necessary to reproduce
> your run.
> In particular it is important to get also the last random seed (linked to
> fort.2) left from a job aborting with that message
>
> Giuseppe Battistoni
>
> On Sat, 11 Sep 2010, Hantao Jing wrote:
>
>
>> Dear fluka experts,
>> Every time, when I run many jobs on our farm at the same time, for
>> example 100 jobs,
>> if I need to write output files to harddisk by using the card of USERDUMP,
>> always, some job will stop or break with
>> the following errors: STOP NO CHANNEL SELECTED.
>> I believe that the reason is two many data are written to harddisk at
>> the same time, because the harddisk can't recieve too
>> many data at the same time due to the limitation of writting-disk speed. For
>> this case, the FLUKA can't automatically wait or delay to write
>> data. So the above error happen. I don't know if my analysis is right? Now for
>> our small farm, only one harddisk to save all users's data.
>> Though I already try to limit every file size (less than 1MB), but these
>> errors still happen. How to avoid these errors and
>> let every job work well. Thanks in advance!
>>
>> Hantao Jing
>> 2010-9-11
>>
>>
>
>
>

Received on Mon Oct 11 2010 - 13:40:22 CEST

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