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Forum: PaStiX solves a new challenge of 83 millions unknowns

Posted by: Pierre Ramet
Date: 2008-05-23 16:26
Summary:PaStiX solves a new challenge of 83 millions unknowns

The direct solver PaStiX has been successfully used by CEA/CESTA to solve a symmetric complex sparse linear system arising from a 3D electromagnetism code with more than 83 millions unknowns on the TERA-10 CEA supercomputer.
Solving this system required about 5 Petaflops (in double precision) and the task was
completed in about 5 hours on 768 processors.
To our knowledge a system of this size and this kind has never been solved by a direct solver.
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