Re: [petsc-dev] GPU counters

[Mark Adams via petsc-dev]

Yea, that is what I thought.
Oh, I am probably seeing the flops from KSP. The PC is a monolithic code
(AMGx).

On Wed, Nov 6, 2019 at 11:18 AM Zhang, Junchao  wrote:

> No. For each vector/matrix operation, PETSc can get its flop count based
> on number of nonzeros, for example.
>
> --Junchao Zhang
>
>
> On Wed, Nov 6, 2019 at 8:44 AM Mark Adams via petsc-dev <
> petsc-dev@mcs.anl.gov> wrote:
>
>> I am puzzled.
>>
>> I am running AMGx now, and I am getting flop counts/rates. How does that
>> happen? Does PETSc use hardware counters to get flops?
>>
>

Re: [petsc-dev] GPU counters

[Zhang, Junchao via petsc-dev]

No. For each vector/matrix operation, PETSc can get its flop count based on 
number of nonzeros, for example.

--Junchao Zhang


On Wed, Nov 6, 2019 at 8:44 AM Mark Adams via petsc-dev 
mailto:petsc-dev@mcs.anl.gov>> wrote:
I am puzzled.

I am running AMGx now, and I am getting flop counts/rates. How does that 
happen? Does PETSc use hardware counters to get flops?

[petsc-dev] GPU counters

[Mark Adams via petsc-dev]

I am puzzled.

I am running AMGx now, and I am getting flop counts/rates. How does that
happen? Does PETSc use hardware counters to get flops?