Nobutoshi Sagawa

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PDEQSOL is an integrated problem-solving environment (PSE) for the solution of partial dijjferential equation (PDE) problems. The PDEQSOL translator generates a Fortran 77 program from very high-level descriptions of PDE problems and from solution algorithms. Solution functions for fluid problems are added to thejinite element method (FEM) version of(More)
This paper presents an approach for improving the efficiency of solving linear systems by applying a genetic algorithm (GA) to the GMRES(m) method, which is one of the most powerful solvers of large-scale asymmetric sparse matrices. For each restart process in GMRES(m), the initial vectors are regarded as chromosomes. When the restart process stagnates, the(More)
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