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Re: DA question

To: petsc-users@xxxxxxxxxxx
Subject: Re: DA question
From: Berend van Wachem <berend@xxxxxxxxxxx>
Date: Wed, 09 Apr 2008 20:59:49 +0200
In-reply-to: <OF646A7ECB.31CF2E15-ON85257426.0065E0EB-85257426.0066DFA9@seagate.com>
References: <OF646A7ECB.31CF2E15-ON85257426.0065E0EB-85257426.0066DFA9@seagate.com>
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Dear Amit,

Could you explain how the two grids are attached? I am using multiple DA's for multiple structured grids glued together. I've done the gluing with setting up various IS objects. From the multiple DA's, one global variable vector is formed. Is that what you are looking for?

Best regards,

Berend.

Amit.Itagi@xxxxxxxxxxx wrote:

Hi,

Is it possible to use DA to perform finite differences on two staggered
regular grids (as in the electromagnetic finite difference time domain
method) ? Surrounding nodes from one grid are used to update the value in
the dual grid. In addition, local manipulations need to be done on the
nodal values.

Thanks

Rgds,
Amit

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