[Trilinos-Users] Epetra_FEVector ReplaceGlobalValue

[Simone Deparis]

Thank you. For my needs, the little "patch" is enough, and since one can 
do more than one globalAssemble, probably is a good tread off btw 
feasablility and needs.

Simone

Williams, Alan B wrote:
> Simone,
> 
> It is a hard problem, there is no good way to have GlobalAssemble manage
> a mixture of Adds and Replaces. But adding the CombineMode argument
> would allow a user to switch "modes". I'll make the change and let you
> know when it's done.
> 
> Alan
>  
> 
> 
>>-----Original Message-----
>>From: trilinos-users-bounces at software.sandia.gov 
>>[mailto:trilinos-users-bounces at software.sandia.gov] On Behalf 
>>Of Simone Deparis
>>Sent: Thursday, November 10, 2005 1:26 PM
>>To: trilinos-users at software.sandia.gov
>>Subject: [Trilinos-Users] Epetra_FEVector ReplaceGlobalValue
>>
>>In Epetra_FEVector, the method  ReplaceGlobalValue does 
>>actually _not_ replace a remote values, it will add it:
>>
>>line 346 of Epetra_FEVector.cpp, method globalAssemble
>>   EPETRA_CHK_ERR( Export(nonlocalVector, exporter, Add) );
>>
>>One possible, but still buggy, solution can be to change the 
>>method global assemble to ( in .h)
>>
>>    int GlobalAssemble(const Epetra_CombineMode& CombineMode = Add);
>>
>>and then modify the header of the method to int 
>>Epetra_FEVector::GlobalAssemble(const Epetra_CombineMode& 
>>CombineMode) and line 346 becomes:
>>   EPETRA_CHK_ERR( Export(nonlocalVector, exporter, CombineMode) );
>>
>>As said, this is still buggy, but at least give me the chance 
>>to decide wether to replace or add the remote values.
>>
>>
>>Simone
>>
>>
>>
>>-- 
>>_____________________________________________________________________
>>                                     Simone Deparis
>>   .~.                               Mechanical Engineering Dept
>>   /V\   L   I   N   U   X           77 Mass Ave Room 3-264
>>  // \\  =================           Cambridge MA 02139
>>/(   )\                             USA
>>  ^^-^^
>>phone :  +1 617 452 3285  mailto:deparis at mit.edu
>>fax   :  +1 617 258 8559  http://www.mit.edu/~deparis
>>_____________________________________________________________________
>>
>>
>>
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> 
> 
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-- 
_____________________________________________________________________
                                     Simone Deparis
   .~.                               Mechanical Engineering Dept
   /V\   L   I   N   U   X           77 Mass Ave Room 3-264
  // \\  =================           Cambridge MA 02139
/(   )\                             USA
  ^^-^^
phone :  +1 617 452 3285  mailto:deparis at mit.edu
fax   :  +1 617 258 8559  http://www.mit.edu/~deparis
_____________________________________________________________________