Rev | Line | |
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[176] | 1 | /* |
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| 2 | * swift_context.c |
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| 3 | * |
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| 4 | * (c) 2009 Ionut Rosoiu <ionut.rosoiu@gmail.com> |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include <stdio.h> |
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| 9 | #include <stdlib.h> |
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| 10 | #include <omp.h> |
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| 11 | #include "swift_compiler.h" |
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| 12 | |
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| 13 | int sum(int r1, int r2) |
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| 14 | { |
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| 15 | return r1 + r2; |
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| 16 | } |
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| 17 | |
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| 18 | int fibo(int n) |
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| 19 | { |
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| 20 | int x, y; |
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| 21 | |
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| 22 | if (n < 2) { |
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| 23 | return n; |
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| 24 | } |
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| 25 | |
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| 26 | #pragma omp task shared(x) |
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| 27 | x = fibo(n - 1); |
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| 28 | |
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| 29 | #pragma omp task shared(y) |
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| 30 | y = fibo(n - 2); |
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| 31 | |
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| 32 | #pragma omp taskwait |
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| 33 | return x + y; |
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| 34 | } |
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| 35 | |
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| 36 | int main(int argc, char **argv) { |
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| 37 | int n, r; |
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| 38 | |
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| 39 | if (argc != 2) { |
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| 40 | fprintf(stderr, "usage: %s N\n", argv[0]); |
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| 41 | abort(); |
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| 42 | } |
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| 43 | |
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| 44 | n = strtol(argv[1], NULL, 10); |
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| 45 | |
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| 46 | #pragma omp parallel |
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| 47 | { |
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| 48 | #pragma omp single |
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| 49 | { |
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| 50 | r = fibo(n); |
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| 51 | } |
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| 52 | } |
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| 53 | |
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| 54 | fprintf(stderr, "computed result for fibo(%d)=%d\n", n, r); |
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| 55 | |
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| 56 | return 0; |
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| 57 | } |
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