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oa A Combined Orthomin and GMRES Linear Solver for Use in Reservoir Simulation
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, ECMOR VIII - 8th European Conference on the Mathematics of Oil Recovery, Sep 2002, cp-104-00033
- ISBN: 978-90-73781-24-5
Abstract
This paper summarizes the Orthomin¹ and GMRES² linear solvers. It presents a mapping from the Orthomin residual basis over to the GMRES basis that is used to switch solvers dynamically during the linear solve step in a reservoir simulator. This mapping enables a combined algorithm to adapt easily to problem complexity .
