[CIG-ALL] CIG: Vote and Webinar - ASPECT's Particle Implementation

Lorraine Hwang ljhwang at ucdavis.edu
Fri Nov 4 10:24:44 PDT 2016

4 November 2016

Dear Community:

We are heading into the busy pre-AGU holiday season but please make the time to participate in CIG in the following ways:

Webinar.  Next week’s webinar  on Thursday November 10 @ 2pm PT features Renee Gassmoeller. Rene will be talking to us about a key feature of ASPECT - particle implementation. Don’t miss these insights from an ASPECT expert.
Rene Gassmoeller, CSU Fort Collins

Particle-in-cell methods have a long history in modeling of mantle convection, lithospheric deformation and crustal dynamics. However, their efficient parallel implementation and application in models - in particular combined with adaptive meshes - is involved due to the complex reassignment of particles to cells and frequent parallel communication.

In this webinar, I present the implementation of a flexible, scalable and efficient particle-in-cell method for the massively parallel finite-element code ASPECT. I discuss the complexity of the implemented algorithms, present scaling tests and discuss load-balancing strategies like balanced repartitioning for particles in adaptive meshes with their strengths and weaknesses. Additionally, I will show an application tutorial on how to convert a model with compositional fields into one using the particle advection scheme, and which consequences follow from this conversion for model runtime and accuracy.

Connect: http://uc-d.adobeconnect.com/r28i3av93ti/ <http://uc-d.adobeconnect.com/r28i3av93ti/>

Vote.  The slate of candidates <https://geodynamics.org/cig/about/governance/elections/>slate of candidate <https://geodynamics.org/cig/about/governance/elections/>s for two positions on the EC and two positions on the SSC is available. Contact your member representative <https://geodynamics.org/cig/about/membership/member-representatives/> to vote.  Voting closes November 30th.

Annual Business Meeting. Please join us and your colleagues at the  Annual Business Meeting @AGU on Monday, December 12 @ 6pm at the Intercontinental. The venue (same as last year) is conveniently adjacent to Moscone West.  

Looking forward to seeing you soon.


Lorraine Hwang, Ph.D.
Associate Director, CIG

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