[petsc-dev] Branches with additional features

Pierre Jolivet pierre.jolivet at enseeiht.fr
Mon May 29 15:46:08 CDT 2017


> On 29 May 2017, at 22:20, Jed Brown <jed at jedbrown.org> wrote:
> 
>> That makes perfect sense (assuming I'm not wrong about the 
>> MatAssemblyBegin/MatAssemblyEnd). MatSetUpMultiply_MPIDense would still 
>> be called at each iteration but I doubt this is too costly.
> 
> It creates a VecScatter so it isn't nothing (in terms of parallel
> semantics), but I'd like to see profiling data before chasing this
> around.

Sure, I'll use that and will look out for any occurrence of "MatDensePlaceArray" (or stuff like that) in the logs, in case it is implemented.
Thanks!



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