[Nek5000-users] Sharing parameters between processors

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

For that purpose you could also use a pseudo-random-numbmer generator 
that produces the sae numbers on each processor (i.e. uses the same seed).

Otherwise, use what I wrote earlier, namely a bcast operation. That is 
one line in the code assuming the data is produced on processor 0.

philipp

On 2015-12-01 08:38, nek5000-users at lists.mcs.anl.gov wrote:
> Hi Paul,
>
> Thanks for your quick answer! These are random numbers I use. They is
> not a very large number of them, I have about 100 elements in my array.
> However,I need to use the same on all my domain, but as they are random,
> I can only generate them once.
>
> Oscar
>
> On 01/12/2015 03:47, nek5000-users at lists.mcs.anl.gov
> <mailto:nek5000-users at lists.mcs.anl.gov> wrote :
>>
>> Hi Oscar,
>>
>> Is there a reason why your quantity is modified only on one processor,
>> and not on the others?
>>
>> How many values are you working with?
>>
>> Paul
>>
>> ------------------------------------------------------------------------
>> *From:* nek5000-users-bounces at lists.mcs.anl.gov
>> <mailto:nek5000-users-bounces at lists.mcs.anl.gov>
>> [nek5000-users-bounces at lists.mcs.anl.gov
>> <mailto:nek5000-users-bounces at lists.mcs.anl.gov>] on behalf of
>> nek5000-users at lists.mcs.anl.gov
>> <mailto:nek5000-users at lists.mcs.anl.gov>
>> [nek5000-users at lists.mcs.anl.gov <mailto:nek5000-users at lists.mcs.anl.gov>]
>> *Sent:* Monday, November 30, 2015 4:31 PM
>> *To:* nek5000-users at lists.mcs.anl.gov
>> <mailto:nek5000-users at lists.mcs.anl.gov>
>> *Subject:* [Nek5000-users] Sharing parameters between processors
>>
>> Hi Nekers,
>>
>> In my current simulation, I am defining an array containing parameters
>> that are shared between several processors. I have tried to do this in
>> the usercheck subroutine, with a COMMON statement. However, the COMMON
>> statement enables saving the parameters between two successive calls
>> of the usercheck by the same processor, but does not enable to share a
>> variable between two processor. In other words, if I modify the
>> variable a on the processor 1, the variable a on the processor 2 will
>> not be modified, which is not what I want. Any idea on how to do that?
>>
>> Thanks for your help,
>>
>> Oscar Valdorez
>>
>
>
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