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Master Foilset for Parallelization of Black Hole Codes using HPF and DAGH

We describe basic physics and computational features of Binary Black Collision Grand Challenge

We show a simple finite difference is complicated by Adaptive Mesh refinement Complex inner and outer boundary conditions Need for several algorithms for hyberbolic and elliptic parts of problem

High level systems DAGH and especially HPF1 cannot express full complexity of problem and MPI must fill in the missing parts

HPF2 might be able to express full problem but HPF1 misses many key capabilities

DAGH is more succesful than HPF1 but needs MPI for parts of problem

Postscript or FramemakerVersion

HPF Code for Linear Waves

Grand Challenge Alliance Home Page

NPAC Activity in Grand Challenge Alliance

Table of Contents for Master Foilset for Parallelization of Black Hole Codes using HPF and DAGH

001 Goals of the Alliance
002 Computational Infrastructure
003 Memory requirements
004 Memory requirements (contiued)
005 ADM Equations
006 ADM Equations (continued)
007 ADM Equations (continued)
008 Causual Differencing
009 Causual Differencing (continued)
010 Apparent Horizon boundary Conditions
011 Computational components/modules
012 HPF and HPF2
013 DAGH
014 DAGH (continued)
015 DAGH (continued)
016 DAGH (continued)
017 Conversion of an existing Fortran 90 implementation to DAGH
018 F90 to DAGH: communication
019 F90 to DAGH: Passing data
020 Automatic translation
021 IMPLEMENTATION
022 IMPLEMENTATION
023 IMPLEMENTATION
024 1. Linear waves
025 2. Finding the Apparent Horizon
026 3a. Black Holes (Inner Boundary Condition
027 Inner Boundary condition (continued)
028 Inner Boundary Conditions (continued)
029 Inner Boundary Conditions (continued)
030 Inner Boundary Conditions (continued)
031 Inner Boundary Condition.    Variable stencil size
032 3b. Moving Inner Boundary (A Moving Hole)
033 Moving Hole (Continued)
034 Moving Hole (continued)
035 4. Linear wave problem with matching outer boundary condition for 
    gravitational wave extraction.
036 Matching interior and exterior evolution
037 5. Support for (parallel) AMR

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu