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A ROW-code of order 4 with Krylov techniques for stiff ODEs written by St. Beck, H. Podhaisky, B. A. Schmitt and R. Weiner.

MATLAB-code in version of May 25, 2009:

FORTRAN-code and driver in version of January 10, 1997:

FORTRAN-code with left preconditioning and driver in version of August 25, 1997:


Explicit pseudo two-step RK methods of order 5 and 8 for parallel computers with memory. Written by N.H. Cong, H. Podhaisky. and R. Weiner

Fortran code with a driver for example diffu2 with solution diffu_solution in version of August 25, 1997:


A Runge-Kutta-Nystroem-type block predictor- corrector method for parallel computers with shared memory
Written by N.H. Cong, H. Podhaisky and R. Weiner.

  • Fortran code nyra.f, a driver routine dr_nyra.f and a test problem from the celesical mechanics moon.f, moon.dat, moon_solut :

    Peer methods are multi-stage two-step methods for the solution of  ordinary initial value problems where each stage posseses essentially  the same accuracy and stability properties. The class has been introduced by B.A. Schmitt and R. Weiner in SINUM 42  (2004). In the literature parallel and non-parallel versions for stiff and  non-stiff problems have been discussed.

    Explicit Parallel PEER methods allow easy  parallelization with OpenMP on current multicore PCs without  parallelization of the right-hand side of the ODE.
    A Fortran95/OpenMP implementation is available in the package EPPEER here.

    For further information, see    .


    Superconvergent explicit Peer methods written by R. Weiner

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