[petsc-users] (no subject)

Dave May dave.mayhem23 at gmail.com
Mon Jun 23 06:12:30 CDT 2014


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> 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 <javascript:;>
>
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