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This report summarizes the results of the scalability improvements of the algorithms used in Total FETI (TFETI). A performance evaluation of two new techniques is presented in this report: (1) a novel pipelined implementation of CG method in PETSc and (2) a MAGMA LU solver running on following many-cores accelerators: GPU Nvidia Tesla K20m and Intel MIC(More)
FLLOP (FETI Light Layer On top of PETSc) is a novel solver for linear systems and more general quadratic programming problems. It connects quadratic programming algorithms with FETI domain decomposition methods that bring high parallel scalability and at the same time high accuracy and robustness needed in engineering applications. According to its name,(More)
In this talk we shall review some recent results related to the development of theoretically supported scalable algorithms for the solution of large scale problems of mechanics, including the contact problems of elasticity. The algorithms combine the Total FETI/BETI based domain decomposition methods adapted to the solution of 2D and 3D multibody contact(More)