Re: [petsc-users] Choosing VecScatter Method in Matrix-Vector Product

Wed, 22 Jan 2020 09:04:17 -0800 


On , 2020Jan22, at 09:11, Felix Huber 
<[email protected]<mailto:[email protected]>> wrote:

weak scaling behaviour in a CG solver

Norms and inner products have Log(P) complexity, so you’ll never get perfect 
weak scaling.

Victor.

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