[petsc-dev] Fwd: [mumps-dev] support for distributed right-hand vectors?

[Alexander Grayver]

On 12.11.2012 21:19, Hong Zhang wrote:
> Alexander:
>
> Interesting results!
> Do you use the same matrix ordering?
> The ordering might affect memory and execution time.

Hong,

I used ptscotch for both of them.

>
> The algorithms of direct solver are in general non-scalable, both in-terms of
> flops and memory. However, I'm surprised by the rate of memory growth
> for both solvers. I would suggest sending your report to the PaStiX
> and MUMPS developers who can give better explanations, as well as
> provide improved implementations.

I will consider this, thank you.

-- 
Regards,
Alexander