[petsc-users] (no subject)

[Dave May]

And use the same sequential communicator when you create the KSP on each
rank

On Monday, 23 June 2014, Dave May <dave.mayhem23 at gmail.com> wrote:

> Yes, just assemble the same sequential matrices on each rank. To do this,
> create the matrix using the communicator PETSC_COMM_SELF
>
> Cheers
>   Dave
>
> On Monday, 23 June 2014, Bogdan Dita <bogdan at lmn.pub.ro
> <javascript:_e(%7B%7D,'cvml','bogdan at lmn.pub.ro');>> wrote:
>
>>
>>
>> Hello,
>>
>> I wanted to see how well Umfpack performs in PETSc but i encountered a
>> problem regarding the matrix type used and the way is distributed. I'm
>> trying to solve for multiple frequencies in parallel, where system matrix
>> A = omega*E-C, and omega is a frequency dependent scalar. Can i send
>> matrix E and C to each process, plus a set of frequencies to compute omega
>> and form A_k = omega_k * E - C and then solve for every omega? Is this
>> even possible given that Umfpack only works with SeqAij?
>>
>>
>> Best regards,
>> Bogdan
>>
>>
>> ----
>> Bogdan DITA, PhD Student
>> UPB - EE Dept.- CIEAC-LMN
>> Splaiul Independentei 313
>> 060042 Bucharest, Romania
>> email: bogdan at lmn.pub.ro
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140623/d4dece62/attachment.html>