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fmmvol3d

Sequential Fast Multipole Method (FMM) Volume Solver Code in Free-Space or with Periodic / Dirichlet Boundary Conditions in a Box

//-----------------------------------------------------

//-----------------------------------------------------

SEQUENTIAL CODE

//--------------------------------------- To compile the code

  1. Declare FMM3D_DIR as the directory containing the code (e.g., fmmvol)

  2. Make sure fftw3 (or fftw2.1.5), blas and lapack libraries are installed, and change the library path variable LIBS in makefile.opt accordingly. If not installed, they can be easily downloaded and installed.

  3. From ${FMM3D_DIR} type: cd common make

  4. From ${FMM3D_DIR} type: cd 3d make vtt

//--------------------------------------- To run the test examples:

go to the 3d directory, and try the following: (1) single layer laplace kernel, mid accuracy vtt 111.opt (2) double layer stokes kernel, mid accuracy vtt 311.opt

    If the precomputed tables for a test are unavailable,
    the code will take a while to run the Adaptive Gaussian Quadrature
    for the first time, and results will be stored in
    ${FMM3D_DIR}/include for future use. To alter the precision of the
    tables (speeds up precomputation time), edit the dcuhre variables/

    Additional tests for various kernels as well as periodic and
    dirichlet tests are available.  Test cases can be viewed or
    augmented in 3d/exsol3d.hpp/cpp

    Currently, only precomputed tables are in the tarfile for the
    Laplacian.  For other tables, run the code as needed and wait for
    the tables to precompute.  If the tables are needed sooner, contact
    harperlangston@gmail.com

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