From 3b8e7ea25f0c23ca596c1c4e3e4f71d12c5fc065 Mon Sep 17 00:00:00 2001 From: Jaron Kent-Dobias Date: Fri, 19 Oct 2018 13:23:23 -0400 Subject: added more examples and cleaned up the model headers --- doc/examples.rst | 10 +++ doc/index.rst | 5 +- examples/CMakeLists.txt | 12 ++- examples/clock.cpp | 98 +++++++++++++++++++++++++ examples/continuous_gaussian.cpp | 112 ++++++++++++++++++++++++++++ examples/discrete_gaussian.cpp | 117 ++++++++++++++++++++++++++++++ examples/ising_standalone.cpp | 4 +- examples/potts.cpp | 110 ++++++++++++++++++++++++++++ lib/include/wolff/models/dihedral.hpp | 4 + lib/include/wolff/models/dihedral_inf.hpp | 4 + lib/include/wolff/models/height.hpp | 14 ++++ lib/include/wolff/models/potts.hpp | 17 ++++- lib/include/wolff/models/symmetric.hpp | 4 + 13 files changed, 506 insertions(+), 5 deletions(-) create mode 100644 doc/examples.rst create mode 100644 examples/clock.cpp create mode 100644 examples/continuous_gaussian.cpp create mode 100644 examples/discrete_gaussian.cpp create mode 100644 examples/potts.cpp diff --git a/doc/examples.rst b/doc/examples.rst new file mode 100644 index 0000000..71b70ce --- /dev/null +++ b/doc/examples.rst @@ -0,0 +1,10 @@ + +******** +Examples +******** + +Several examples are included in the directory :file:`examples/`. The simplist, standalone example of measuring the average cluster size of an Ising model is provided in full below, demonstrating how to define a model, measurement, couplings, and initialize the algorithm. + +.. literalinclude:: ../examples/ising_standalone.cpp + :language: cpp + diff --git a/doc/index.rst b/doc/index.rst index 4e58e46..98f1e76 100644 --- a/doc/index.rst +++ b/doc/index.rst @@ -1,10 +1,11 @@ -Wolff Libraries -+++++++++++++++ +Wolff Library ++++++++++++++ .. toctree :: :maxdepth: 2 + examples models system measurement diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index c64bb06..634c600 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -3,11 +3,21 @@ add_executable(ising ising.cpp) add_executable(ising_animation ising_animation.cpp) add_executable(ising_standalone ising_standalone.cpp) add_executable(xy On.cpp) +add_executable(potts_3 potts.cpp) +add_executable(clock_5 clock.cpp) +add_executable(discrete_gaussian discrete_gaussian.cpp) +add_executable(continuous_gaussian continuous_gaussian.cpp) -add_compile_definitions(xy WOLFF_N=2) +target_compile_definitions(xy PUBLIC WOLFF_N=2) +target_compile_definitions(potts_3 PUBLIC WOLFF_POTTSQ=3) +target_compile_definitions(clock_5 PUBLIC WOLFF_POTTSQ=5) target_link_libraries(ising wolff) target_link_libraries(ising_animation wolff GL GLU glut) target_link_libraries(ising_standalone wolff) target_link_libraries(xy wolff) +target_link_libraries(potts_3 wolff) +target_link_libraries(clock_5 wolff) +target_link_libraries(discrete_gaussian wolff) +target_link_libraries(continuous_gaussian wolff) diff --git a/examples/clock.cpp b/examples/clock.cpp new file mode 100644 index 0000000..4b0ffb8 --- /dev/null +++ b/examples/clock.cpp @@ -0,0 +1,98 @@ + +#include +#include +#include + +#include "simple_measurement.hpp" + +#include +#include +#include + +#include + +using namespace wolff; + +int main(int argc, char *argv[]) { + + // set defaults + N_t N = (N_t)1e4; + D_t D = 2; + L_t L = 128; + double T = 2.26918531421; + vector_t<2, double> H; + H.fill(0.0); + q_t Hi = 0; + + int opt; + + // take command line arguments + while ((opt = getopt(argc, argv, "N:D:L:T:H:")) != -1) { + switch (opt) { + case 'N': // number of steps + N = (N_t)atof(optarg); + break; + case 'D': // dimension + D = atoi(optarg); + break; + case 'L': // linear size + L = atoi(optarg); + break; + case 'T': // temperature + T = atof(optarg); + break; + case 'H': // external field + H[Hi] = atof(optarg); + Hi++; + break; + default: + exit(EXIT_FAILURE); + } + } + + // define the spin-spin coupling + std::function &, const potts_t&)> Z = [] (const potts_t& s1, const potts_t& s2) -> double { + return cos(2 * M_PI * (double)(s1.x + WOLFF_POTTSQ - s2.x) / (double)WOLFF_POTTSQ); + }; + + // define the spin-field coupling + std::function &)> B = [=] (const potts_t& s) -> double { + return H[0] * cos(2 * M_PI * (double)s.x / (double)WOLFF_POTTSQ) + H[1] * sin(2 * M_PI * (double)s.x / (double)WOLFF_POTTSQ); + }; + + // initialize the lattice + graph G(D, L); + + // initialize the system + system, potts_t> S(G, T, Z, B); + + // initialize the random number generator + auto seed = std::chrono::high_resolution_clock::now().time_since_epoch().count(); + std::mt19937 rng{seed}; + + // define function that generates self-inverse rotations + std::function (std::mt19937&, const system, potts_t>&, v_t)> gen_r = [] (std::mt19937& r, const system, potts_t>& S, v_t i0) -> dihedral_t { + dihedral_t rot; + rot.is_reflection = true; + std::uniform_int_distribution dist(0, WOLFF_POTTSQ - 2); + q_t x = dist(r); + rot.x = (2 * S.s[i0].x + x + 1) % WOLFF_POTTSQ; + + return rot; + }; + + // initailze the measurement object + simple_measurement A(S); + + // run wolff N times + S.run_wolff(N, gen_r, A, rng); + + // print the result of our measurements + std::cout << "Wolff complete!\nThe average energy per site was " << A.avgE() / S.nv + << ".\nThe average magnetization per site was " << A.avgM() / S.nv + << ".\nThe average cluster size per site was " << A.avgC() / S.nv << ".\n"; + + // exit + return 0; +} + diff --git a/examples/continuous_gaussian.cpp b/examples/continuous_gaussian.cpp new file mode 100644 index 0000000..ef08247 --- /dev/null +++ b/examples/continuous_gaussian.cpp @@ -0,0 +1,112 @@ + +#include +#include +#include + +#include "simple_measurement.hpp" + +#include +#include + +#include + +int main(int argc, char *argv[]) { + + // set defaults + N_t N = (N_t)1e4; + D_t D = 2; + L_t L = 128; + double T = 0.8; + double H = 0.0; + + int opt; + + // take command line arguments + while ((opt = getopt(argc, argv, "N:D:L:T:H:")) != -1) { + switch (opt) { + case 'N': // number of steps + N = (N_t)atof(optarg); + break; + case 'D': // dimension + D = atoi(optarg); + break; + case 'L': // linear size + L = atoi(optarg); + break; + case 'T': // temperature + T = atof(optarg); + break; + case 'H': // external field + H = atof(optarg); + break; + default: + exit(EXIT_FAILURE); + } + } + + // define the spin-spin coupling + std::function &, const height_t&)> Z = [] (const height_t& s1, const height_t& s2) -> double { + return - pow(s1.x - s2.x, 2); + }; + + // define the spin-field coupling + std::function &)> B = [&] (const height_t& s) -> double { + return - H * pow(s.x, 2); + }; + + // initialize the lattice + graph G(D, L); + + // initialize the system + system, height_t> S(G, T, Z, B); + + bool odd_run = false; + + std::function (std::mt19937&, const system, height_t>&, v_t)> gen_R_IH = [&](std::mt19937& r, const system, height_t>& S, v_t i0) -> dihedral_inf_t { + dihedral_inf_t rot; + rot.is_reflection = true; + + if (odd_run) { + std::uniform_int_distribution dist(0, S.nv - 2); + v_t j = i0; + + //while (S.s[j].x == S.s[i0].x) { + v_t tmp = dist(r); + + if (tmp < i0) { + j = tmp; + } else { + j = tmp + 1; + } + //} + + rot.x = 2 * S.s[j].x; + } else { + std::normal_distribution dist(0.0,1.0); + rot.x = 2 * S.s[i0].x + dist(r); + } + + odd_run = !odd_run; + + return rot; + }; + + // initailze the measurement object + simple_measurement A(S); + + // initialize the random number generator + auto seed = std::chrono::high_resolution_clock::now().time_since_epoch().count(); + std::mt19937 rng{seed}; + + // run wolff N times + S.run_wolff(N, gen_R_IH, A, rng); + + // print the result of our measurements + std::cout << "Wolff complete!\nThe average energy per site was " << A.avgE() / S.nv + << ".\nThe average magnetization per site was " << A.avgM() / S.nv + << ".\nThe average cluster size per site was " << A.avgC() / S.nv << ".\n"; + + // exit + return 0; +} + diff --git a/examples/discrete_gaussian.cpp b/examples/discrete_gaussian.cpp new file mode 100644 index 0000000..75ea0f9 --- /dev/null +++ b/examples/discrete_gaussian.cpp @@ -0,0 +1,117 @@ + +#include +#include +#include + +#include "simple_measurement.hpp" + +#include +#include + +#include + +int main(int argc, char *argv[]) { + + // set defaults + N_t N = (N_t)1e4; + D_t D = 2; + L_t L = 128; + double T = 0.8; + double H = 0.0; + + int opt; + + // take command line arguments + while ((opt = getopt(argc, argv, "N:D:L:T:H:")) != -1) { + switch (opt) { + case 'N': // number of steps + N = (N_t)atof(optarg); + break; + case 'D': // dimension + D = atoi(optarg); + break; + case 'L': // linear size + L = atoi(optarg); + break; + case 'T': // temperature + T = atof(optarg); + break; + case 'H': // external field + H = atof(optarg); + break; + default: + exit(EXIT_FAILURE); + } + } + + // define the spin-spin coupling + std::function &, const height_t&)> Z = [] (const height_t& s1, const height_t& s2) -> double { + return - pow(s1.x - s2.x, 2); + }; + + // define the spin-field coupling + std::function &)> B = [&] (const height_t& s) -> double { + return - H * pow(s.x, 2); + }; + + // initialize the lattice + graph G(D, L); + + // initialize the system + system, height_t> S(G, T, Z, B); + + bool odd_run = false; + + std::function (std::mt19937&, const system, height_t>&, v_t)> gen_R_IH = [&](std::mt19937& r, const system, height_t>& S, v_t i0) -> dihedral_inf_t { + dihedral_inf_t rot; + rot.is_reflection = true; + + if (odd_run) { + std::uniform_int_distribution dist(0, S.nv - 2); + v_t j = i0; + + //while (S.s[j].x == S.s[i0].x) { + v_t tmp = dist(r); + + if (tmp < i0) { + j = tmp; + } else { + j = tmp + 1; + } + //} + + rot.x = 2 * S.s[j].x; + } else { + std::uniform_int_distribution dist(0, 1); + int j = dist(r); + if (j) { + rot.x = 2 * S.s[i0].x + 1; + } else { + rot.x = 2 * S.s[i0].x - 1; + } + } + + odd_run = !odd_run; + + return rot; + }; + + // initailze the measurement object + simple_measurement A(S); + + // initialize the random number generator + auto seed = std::chrono::high_resolution_clock::now().time_since_epoch().count(); + std::mt19937 rng{seed}; + + // run wolff N times + S.run_wolff(N, gen_R_IH, A, rng); + + // print the result of our measurements + std::cout << "Wolff complete!\nThe average energy per site was " << A.avgE() / S.nv + << ".\nThe average magnetization per site was " << A.avgM() / S.nv + << ".\nThe average cluster size per site was " << A.avgC() / S.nv << ".\n"; + + // exit + return 0; +} + diff --git a/examples/ising_standalone.cpp b/examples/ising_standalone.cpp index c958777..62b4089 100644 --- a/examples/ising_standalone.cpp +++ b/examples/ising_standalone.cpp @@ -23,8 +23,10 @@ class ising_t { }; class measure_clusters : public measurement { - public: + private: v_t C; + + public: double Ctotal; measure_clusters() { diff --git a/examples/potts.cpp b/examples/potts.cpp new file mode 100644 index 0000000..84494e2 --- /dev/null +++ b/examples/potts.cpp @@ -0,0 +1,110 @@ + +#include +#include +#include + +#include "simple_measurement.hpp" + +#include +#include +#include + +#include + +using namespace wolff; + +int main(int argc, char *argv[]) { + + // set defaults + N_t N = (N_t)1e4; + D_t D = 2; + L_t L = 128; + double T = 2.26918531421; + vector_t H; + H.fill(0.0); + q_t Hi = 0; + + int opt; + + // take command line arguments + while ((opt = getopt(argc, argv, "N:D:L:T:H:")) != -1) { + switch (opt) { + case 'N': // number of steps + N = (N_t)atof(optarg); + break; + case 'D': // dimension + D = atoi(optarg); + break; + case 'L': // linear size + L = atoi(optarg); + break; + case 'T': // temperature + T = atof(optarg); + break; + case 'H': // external field + H[Hi] = atof(optarg); + Hi++; + break; + default: + exit(EXIT_FAILURE); + } + } + + // define the spin-spin coupling + std::function &, const potts_t&)> Z = [] (const potts_t& s1, const potts_t& s2) -> double { + if (s1.x == s2.x) { + return 1.0; + } else { + return 0.0; + } + }; + + // define the spin-field coupling + std::function &)> B = [=] (const potts_t& s) -> double { + return H[s.x]; + }; + + // initialize the lattice + graph G(D, L); + + // initialize the system + system, potts_t> S(G, T, Z, B); + + // initialize the random number generator + auto seed = std::chrono::high_resolution_clock::now().time_since_epoch().count(); + std::mt19937 rng{seed}; + + // define function that generates self-inverse rotations + std::function (std::mt19937&, const system, potts_t>&, v_t)> gen_r = [] (std::mt19937& r, const system, potts_t>& S, v_t i0) -> symmetric_t { + symmetric_t rot; + + std::uniform_int_distribution dist(0, WOLFF_POTTSQ - 2); + q_t j = dist(r); + q_t swap_v; + if (j < S.s[i0].x) { + swap_v = j; + } else { + swap_v = j + 1; + } + + rot[S.s[i0].x] = swap_v; + rot[swap_v] = S.s[i0].x; + + return rot; + }; + + // initailze the measurement object + simple_measurement A(S); + + // run wolff N times + S.run_wolff(N, gen_r, A, rng); + + // print the result of our measurements + std::cout << "Wolff complete!\nThe average energy per site was " << A.avgE() / S.nv + << ".\nThe average magnetization per site was " << A.avgM() / S.nv + << ".\nThe average cluster size per site was " << A.avgC() / S.nv << ".\n"; + + // exit + return 0; +} + diff --git a/lib/include/wolff/models/dihedral.hpp b/lib/include/wolff/models/dihedral.hpp index cbc5687..50272e3 100644 --- a/lib/include/wolff/models/dihedral.hpp +++ b/lib/include/wolff/models/dihedral.hpp @@ -4,6 +4,8 @@ #include #include "potts.hpp" +namespace wolff { + template class dihedral_t { public: @@ -46,3 +48,5 @@ class dihedral_t { } }; +} + diff --git a/lib/include/wolff/models/dihedral_inf.hpp b/lib/include/wolff/models/dihedral_inf.hpp index bded387..b88e91b 100644 --- a/lib/include/wolff/models/dihedral_inf.hpp +++ b/lib/include/wolff/models/dihedral_inf.hpp @@ -3,6 +3,8 @@ #include #include "height.hpp" +namespace wolff { + template class dihedral_inf_t { public: @@ -45,3 +47,5 @@ class dihedral_inf_t { } }; +} + diff --git a/lib/include/wolff/models/height.hpp b/lib/include/wolff/models/height.hpp index bd0ceb6..9d7e87c 100644 --- a/lib/include/wolff/models/height.hpp +++ b/lib/include/wolff/models/height.hpp @@ -4,6 +4,8 @@ #include #include +namespace wolff { + template struct height_t { T x; @@ -27,6 +29,16 @@ struct height_t { } }; +template +inline typename height_t::M_t operator*(v_t a, height_t h) { + return h * a; +} + +template +inline typename height_t::F_t operator*(double a, height_t h) { + return h * a; +} + template inline T& operator+=(T& M, const height_t &h) { M += h.x; @@ -41,3 +53,5 @@ inline T& operator-=(T& M, const height_t &h) { return M; } +} + diff --git a/lib/include/wolff/models/potts.hpp b/lib/include/wolff/models/potts.hpp index 10b440e..ce419ce 100644 --- a/lib/include/wolff/models/potts.hpp +++ b/lib/include/wolff/models/potts.hpp @@ -6,6 +6,8 @@ #include "../types.h" #include "vector.hpp" +namespace wolff { + template class potts_t { public: @@ -44,7 +46,20 @@ class potts_t { } }; -const potts_t states[256] = {{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, {9}, {11}, {12}, {13}, {14}, {15}, {16}, {17}, {18}, {19}, {20}, {21}, {22}, {23}, {24}, {25}, {26}, {27}, {28}, {29}, {30}, {31}, {32}, {33}, {34}, {35}, {36}, {37}, {38}, {39}, {40}, {41}, {42}, {43}, {44}, {45}, {46}, {47}, {48}, {49}, {50}, {51}, {52}, {53}, {54}, {55}, {56}, {57}, {58}, {59}, {60}, {61}, {62}, {63}, {64}, {65}, {66}, {67}, {68}, {69}, {70}, {71}, {72}, {73}, {74}, {75}, {76}, {77}, {78}, {79}, {80}, {81}, {82}, {83}, {84}, {85}, {86}, {87}, {88}, {89}, {90}, {91}, {92}, {93}, {94}, {95}, {96}, {97}, {98}, {99}, {100}, {101}, {102}, {103}, {104}, {105}, {106}, {107}, {108}, {109}, {110}, {111}, {112}, {113}, {114}, {115}, {116}, {117}, {118}, {119}, {120}, {121}, {122}, {123}, {124}, {125}, {126}, {127}, {128}, {129}, {130}, {131}, {132}, {133}, {134}, {135}, {136}, {137}, {138}, {139}, {140}, {141}, {142}, {143}, {144}, {145}, {146}, {147}, {148}, {149}, {150}, {151}, {152}, {153}, {154}, {155}, {156}, {157}, {158}, {159}, {160}, {161}, {162}, {163}, {164}, {165}, {166}, {167}, {168}, {169}, {170}, {171}, {172}, {173}, {174}, {175}, {176}, {177}, {178}, {179}, {180}, {181}, {182}, {183}, {184}, {185}, {186}, {187}, {188}, {189}, {190}, {191}, {192}, {193}, {194}, {195}, {196}, {197}, {198}, {199}, {200}, {201}, {202}, {203}, {204}, {205}, {206}, {207}, {208}, {209}, {210}, {211}, {212}, {213}, {214}, {215}, {216}, {217}, {218}, {219}, {220}, {221}, {222}, {223}, {224}, {225}, {226}, {227}, {228}, {229}, {230}, {231}, {232}, {233}, {234}, {235}, {236}, {237}, {238}, {239}, {240}, {241}, {242}, {243}, {244}, {245}, {246}, {247}, {248}, {249}, {250}, {251}, {252}, {253}, {254}, {255}}; +template +inline typename potts_t::M_t operator*(v_t a, const potts_t& s) { + return s * a; +} + +template +inline typename potts_t::F_t operator*(double a, const potts_t& s) { + return s * a; +} + +#define WOLFF_FINITE_STATES_N WOLFF_POTTSQ +const potts_t finite_states_possible[256] = {{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, {9}, {11}, {12}, {13}, {14}, {15}, {16}, {17}, {18}, {19}, {20}, {21}, {22}, {23}, {24}, {25}, {26}, {27}, {28}, {29}, {30}, {31}, {32}, {33}, {34}, {35}, {36}, {37}, {38}, {39}, {40}, {41}, {42}, {43}, {44}, {45}, {46}, {47}, {48}, {49}, {50}, {51}, {52}, {53}, {54}, {55}, {56}, {57}, {58}, {59}, {60}, {61}, {62}, {63}, {64}, {65}, {66}, {67}, {68}, {69}, {70}, {71}, {72}, {73}, {74}, {75}, {76}, {77}, {78}, {79}, {80}, {81}, {82}, {83}, {84}, {85}, {86}, {87}, {88}, {89}, {90}, {91}, {92}, {93}, {94}, {95}, {96}, {97}, {98}, {99}, {100}, {101}, {102}, {103}, {104}, {105}, {106}, {107}, {108}, {109}, {110}, {111}, {112}, {113}, {114}, {115}, {116}, {117}, {118}, {119}, {120}, {121}, {122}, {123}, {124}, {125}, {126}, {127}, {128}, {129}, {130}, {131}, {132}, {133}, {134}, {135}, {136}, {137}, {138}, {139}, {140}, {141}, {142}, {143}, {144}, {145}, {146}, {147}, {148}, {149}, {150}, {151}, {152}, {153}, {154}, {155}, {156}, {157}, {158}, {159}, {160}, {161}, {162}, {163}, {164}, {165}, {166}, {167}, {168}, {169}, {170}, {171}, {172}, {173}, {174}, {175}, {176}, {177}, {178}, {179}, {180}, {181}, {182}, {183}, {184}, {185}, {186}, {187}, {188}, {189}, {190}, {191}, {192}, {193}, {194}, {195}, {196}, {197}, {198}, {199}, {200}, {201}, {202}, {203}, {204}, {205}, {206}, {207}, {208}, {209}, {210}, {211}, {212}, {213}, {214}, {215}, {216}, {217}, {218}, {219}, {220}, {221}, {222}, {223}, {224}, {225}, {226}, {227}, {228}, {229}, {230}, {231}, {232}, {233}, {234}, {235}, {236}, {237}, {238}, {239}, {240}, {241}, {242}, {243}, {244}, {245}, {246}, {247}, {248}, {249}, {250}, {251}, {252}, {253}, {254}, {255}}; template q_t finite_states_enum(const potts_t& state) { return (q_t)state.x; } +} + diff --git a/lib/include/wolff/models/symmetric.hpp b/lib/include/wolff/models/symmetric.hpp index 7bcc9a6..71431c5 100644 --- a/lib/include/wolff/models/symmetric.hpp +++ b/lib/include/wolff/models/symmetric.hpp @@ -6,6 +6,8 @@ #include "../types.h" #include "potts.hpp" +namespace wolff { + template class symmetric_t : public std::array { public: @@ -49,3 +51,5 @@ class symmetric_t : public std::array { } }; +} + -- cgit v1.2.3-70-g09d2