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SpeedIT 2.1 has now better preconditioners on GPU |
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May 24, 2012, 17:09
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SpeedIT 2.1: OpenFOAM on GPU can be run with better preconditioners
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Member
Lukasz Miroslaw
Join Date: Dec 2009
Location: Poland
Posts: 66
Rep Power: 16   |
SpeedIT 2.1 contains a new set of preconditioners:
• Algebraic Multigrid with Smoothed Aggregation (AMG) • Approximate Inverse (AINV) Our tests showed that OpenFOAM simulations on a single GPU can be up to 3.5x faster compared to CG with DIC/DILU and up to 1.6x faster if you run GAMG on CPU. FYI, SpeedIT provides a set of accelerated solvers for sparse linear systems of equations. Thanks to CMRS format SpeedIT is one the fastests technologies due to very fast SpMV operations. The library runs with C/C++ and Fortran. It can also run with OpenFOAM. See our report for details. Last edited by Lukasz; May 31, 2012 at 05:10. Reason: Description was not clear enough. |
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| amg solver, cuda, gamg, gpu, speedit |
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