[petsc-users] Load binary matrix created in parallel

Matthew Knepley knepley at gmail.com
Wed May 23 10:48:27 CDT 2018


On Wed, May 23, 2018 at 11:45 AM, Y. Shidi <ys453 at cam.ac.uk> wrote:

> Hi,
>
> How are you evaluating?
>>
> I put the loaded matrix to a linear system and solve it.
>

Is your claim that you do

  MatView()

and then

  MatLoad()

and get a different matrix? This is unlikely since we test this.
Are you sure you have the same rhs?

  Thanks,

    Matt


> Cheers,
> Shidi
>
> On 2018-05-23 16:42, Jed Brown wrote:
>
>> "Y. Shidi" <ys453 at cam.ac.uk> writes:
>>
>> Hello,
>>>
>>> Is there any way to sequentially load a binary matrix file, which
>>> is created in parallel?
>>> I tried to use PetscViewerBinaryOpen() and MatLoad() to load
>>> the matrix that is created by using 2 cores, and solved a linear
>>> system by using this matrix but the results is not correct.
>>>
>>
>> How are you evaluating?
>>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.caam.rice.edu/~mk51/>
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