[petsc-dev] [petsc-users] Question about matrix permutation

[Matthew Knepley]

>
>  Whenever someone suggests the performance loss is possibly coming from
> "poor prefetch", it is clear they don't understand enough about the details
> of the data access, in my experience prefetch is or lack there of is purely
> an academic exercise and never really happens :-)
>

Now there are two reasons for Twitter: shitmydadsays and shitbarrysays. Who
wants to make the account?

  Matt
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