ExaFMM 1
Fast-multipole Method for exascale systems
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00001 /* 00002 Copyright (C) 2011 by Rio Yokota, Simon Layton, Lorena Barba 00003 00004 Permission is hereby granted, free of charge, to any person obtaining a copy 00005 of this software and associated documentation files (the "Software"), to deal 00006 in the Software without restriction, including without limitation the rights 00007 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 copies of the Software, and to permit persons to whom the Software is 00009 furnished to do so, subject to the following conditions: 00010 00011 The above copyright notice and this permission notice shall be included in 00012 all copies or substantial portions of the Software. 00013 00014 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00020 THE SOFTWARE. 00021 */ 00022 #include "serialfmm.h" 00023 #ifdef VTK 00024 #include "vtk.h" 00025 #endif 00026 00027 int main() { 00028 const int numBodies = 1000000; 00029 IMAGES = 0; 00030 THETA = 1 / sqrtf(4); 00031 Bodies bodies(numBodies); 00032 Cells cells; 00033 SerialFMM<Laplace> FMM; 00034 FMM.initialize(); 00035 FMM.printNow = true; 00036 00037 FMM.startTimer("Set bodies "); 00038 FMM.random(bodies); 00039 FMM.stopTimer("Set bodies ",FMM.printNow); 00040 00041 FMM.startTimer("Set domain "); 00042 FMM.setDomain(bodies); 00043 FMM.stopTimer("Set domain ",FMM.printNow); 00044 00045 #ifdef TOPDOWN 00046 FMM.topdown(bodies,cells); 00047 #else 00048 FMM.bottomup(bodies,cells); 00049 #endif 00050 00051 #ifdef VTK 00052 int Ncell = 0; 00053 vtkPlot vtk; 00054 vtk.setDomain(FMM.getR0(),FMM.getX0()); 00055 vtk.setGroupOfPoints(bodies,Ncell); 00056 vtk.plot(Ncell); 00057 #endif 00058 FMM.finalize(); 00059 }