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131
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1 extern
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2 #ifdef __cplusplus
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3 "C"
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4 #endif
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5 void abort (void);
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6
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7 void
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8 fn1 (double *x, double *y, int z)
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9 {
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10 int i;
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11 for (i = 0; i < z; i++)
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12 {
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13 x[i] = i & 31;
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14 y[i] = (i & 63) - 30;
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15 }
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16 }
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17
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18 #pragma omp declare target
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19 int tgtv = 6;
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20 int
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21 tgt (void)
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22 {
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23 #pragma omp atomic update
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24 tgtv++;
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25 return 0;
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26 }
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27 #pragma omp end declare target
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28
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29 double
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30 fn2 (int x, int y, int z)
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31 {
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32 double b[1024], c[1024], s = 0;
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33 int i, j;
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34 fn1 (b, c, x);
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35 #pragma omp target data map(to: b)
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36 {
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37 #pragma omp target map(tofrom: c, s)
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38 #pragma omp teams num_teams(y) thread_limit(z) reduction(+:s) firstprivate(x)
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39 #pragma omp distribute dist_schedule(static, 4) collapse(1)
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40 for (j=0; j < x; j += y)
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41 #pragma omp parallel for reduction(+:s)
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42 for (i = j; i < j + y; i++)
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43 tgt (), s += b[i] * c[i];
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44 #pragma omp target update from(b, tgtv)
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45 }
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46 return s;
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47 }
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48
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49 double
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50 fn3 (int x)
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51 {
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52 double b[1024], c[1024], s = 0;
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53 int i;
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54 fn1 (b, c, x);
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55 #pragma omp target map(to: b, c) map(tofrom:s)
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56 #pragma omp parallel for reduction(+:s)
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57 for (i = 0; i < x; i++)
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58 tgt (), s += b[i] * c[i];
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59 return s;
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60 }
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61
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62 double
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63 fn4 (int x, double *p)
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64 {
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65 double b[1024], c[1024], d[1024], s = 0;
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66 int i;
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67 fn1 (b, c, x);
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68 fn1 (d + x, p + x, x);
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69 #pragma omp target map(to: b, c[0:x], d[x:x]) map(to:p[x:64 + (x & 31)]) \
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70 map(tofrom: s)
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71 #pragma omp parallel for reduction(+:s)
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72 for (i = 0; i < x; i++)
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73 s += b[i] * c[i] + d[x + i] + p[x + i];
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74 return s;
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75 }
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76
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77 int
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78 main ()
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79 {
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80 double a = fn2 (128, 4, 6);
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81 int b = tgtv;
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82 double c = fn3 (61);
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83 #pragma omp target update from(tgtv)
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84 int d = tgtv;
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85 double e[1024];
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86 double f = fn4 (64, e);
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87 if (a != 13888.0 || b != 6 + 128 || c != 4062.0 || d != 6 + 128 + 61
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88 || f != 8032.0)
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89 abort ();
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90 return 0;
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91 }
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