[CIG-SHORT] Pylith time stepping viscoelastic

[S Tabrez ALI]

Which part is currently slow and is this a 2D or 3D case? You can perhaps try a sparse direct solver. The first solve will be slow but the rest should go fast (assuming the stiffness matrix is not changing).


Tabrez

________________________________
From: CIG-SHORT <cig-short-bounces at geodynamics.org> on behalf of Francisco Delgado <fjd49 at cornell.edu>
Sent: Wednesday, May 11, 2016 1:26:25 PM
To: cig-short at geodynamics.org
Subject: [CIG-SHORT] Pylith time stepping viscoelastic

Dear Pylith developers

I'm running a viscoelastic simulation of a pressurised magma chamber surrounded by a viscoelastic shell with a viscosity of 2*1e16 Pa s, a shear modulus of 30 GPa. The latter figures imply a stable time step of 0.0042 years which will produce a very slow simulation over a period of 4 years in terms of computing time. Hence I wonder if there a way to increase the simulation speed.

Thanks

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Francisco Delgado
PhD student in Geological Sciences
Cornell University
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