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mmgocmen / cfd-with-cuda

CFD with CUDA
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Preconditioners with GMRES #19

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Somehow none of the available preconditioners of CUSP speeds up a GMRES 
solution. Only diagonal preconditioner seems to be working, but it causes a 
slow down. Smoothed aggregation preconditioner gives NANs after a number of 
iterations. ainv preconditioner freezes.

Original issue reported on code.google.com by cuneytsert on 5 Nov 2012 at 7:38

GoogleCodeExporter commented 9 years ago 
It is possible to check whether CULA Sparse's GMRES solver can be used with 
preconditioners or not. CULA Sparse's CG solver can now be used with the 
Poisson solver. With slight modification its GMRES solver can be available for 
the N-S solver.

Original comment by cuneytsert on 8 Dec 2012 at 1:46

GoogleCodeExporter commented 9 years ago 
Issues related to the old segragated solver are being closed as WONTFIX.

Original comment by cuneytsert on 10 Jun 2014 at 11:53