[MOAB-dev] MOAB handles and processor rank

Tim Tautges tautges at mcs.anl.gov
Thu Sep 25 11:25:54 CDT 2008



Jed Brown wrote:
> On Thu 2008-09-25 10:43, Jason Kraftcheck wrote:
>> MOAB currently embeds the rank of the owning processor in each entity
>> handle.  Tim and I were just discussing removing this 'feature', as we had
>> decided that it wasn't the best solution for MOAB's parallel data management
>> and no longer use it.  If this will be a problem for anyone else (i.e. it is
>> used in code I'm not familiar with in MOAB or is essential to some external
>> code), please let me know soon.
> 
> I was curious why those existed.  I have no use for tags on individual
> entities.  My only requirement is that the order of entities in each
> shared set be consistent between processors.
> 
> Jed

I'm not sure that's a safe assumption.  The order depends on the local 
handles, which can be different.  You can get the handle of a given 
entity on the other processor(s) sharing that entity.

- tim

-- 
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              Tim Tautges            Argonne National Laboratory
          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
          phone: (608) 263-8485      1500 Engineering Dr.
            fax: (608) 263-4499      Madison, WI 53706




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