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Adding fast multipole method for Legendre-Chebyshev transforms (#83)
* Adding FMM * Update fmm.c * Adding new tests * Trigger * Adding stdint.h * Fixing mac CI
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| #include "fasttransforms.h" | ||
| #include "ftinternal.h" | ||
| #include "fmm.h" | ||
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| size_t get_number_of_blocks(const size_t level) { return pow(2, level + 1) - 1; } | ||
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| size_t get_h(const size_t level, const size_t L) { return pow(2, L - level - 1); } | ||
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| size_t get_number_of_submatrices(const size_t level) { return 3 * get_number_of_blocks(level); } | ||
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| size_t get_total_number_of_blocks(const size_t L) { return pow(2, L + 1) - (L + 2); } | ||
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| size_t get_total_number_of_submatrices(const size_t L) { return 3 * get_total_number_of_blocks(L); } | ||
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| void get_ij(size_t *ij, const size_t level, const size_t block, const size_t s, const size_t L) | ||
| { | ||
| size_t h = get_h(level, L); | ||
| ij[0] = 2 * block * s * h; | ||
| ij[1] = ij[0] + 2 * s * h; | ||
| } | ||
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| /*#if defined(FT_QUADMATH) | ||
| #define FLT quadruple | ||
| #define X(name) FT_CONCAT(ft_, name, q) | ||
| #define Y(name) FT_CONCAT(, name, q) | ||
| #include "fmm_source.c" | ||
| #undef FLT | ||
| #undef X | ||
| #undef Y | ||
| #define FLT long double | ||
| #define X(name) FT_CONCAT(ft_, name, l) | ||
| #define X2(name) FT_CONCAT(ft_, name, q) | ||
| #define Y(name) FT_CONCAT(, name, l) | ||
| #include "fmm_source.c" | ||
| #undef FLT | ||
| #undef X | ||
| #undef X2 | ||
| #undef Y | ||
| #else | ||
| #define FLT long double | ||
| #define X(name) FT_CONCAT(ft_, name, l) | ||
| #define X2(name) FT_CONCAT(ft_, name, l) | ||
| #define Y(name) FT_CONCAT(, name, l) | ||
| #include "fmm_source.c" | ||
| #undef FLT | ||
| #undef X | ||
| #undef X2 | ||
| #undef Y | ||
| #endif*/ | ||
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| #define FLT double | ||
| #define X(name) FT_CONCAT(ft_, name, ) | ||
| #define FT_USE_DOUBLE | ||
| #include "fmm_source.c" | ||
| #undef FLT | ||
| #undef X | ||
| #undef FT_USE_DOUBLE | ||
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| #define FLT float | ||
| #define X(name) FT_CONCAT(ft_, name, f) | ||
| #define FT_USE_SINGLE | ||
| #include "fmm_source.c" | ||
| #undef FLT | ||
| #undef X | ||
| #undef FT_USE_SINGLE |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| #ifndef FMM_H | ||
| #define FMM_H | ||
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| #include <assert.h> | ||
| #include <stdbool.h> | ||
| #include <string.h> | ||
| #include <stdint.h> | ||
| #include <time.h> | ||
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| enum { L2C = 0, C2L = 1, BOTH = 2 }; | ||
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| #ifdef CLOCK_UPTIME_RAW | ||
| #define tic clock_gettime_nsec_np(CLOCK_UPTIME_RAW) | ||
| #define dtics(a, b) (double)(b - a) / 1.0E9 | ||
| #define toc(a) (double)(tic - a) / 1.0E9 | ||
| #else | ||
| #define tic clock() | ||
| #define dtics(a, b) (double)(b - a) / (double)CLOCKS_PER_SEC | ||
| #define toc(a) (double)(tic - a) / (double)CLOCKS_PER_SEC | ||
| #endif | ||
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| #endif |
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