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correct the code of 02_reduce/07/main.cpp #19

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correct the code of 02_reduce/07/main.cpp #19

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aa0b3f6
correct the code of 02_reduce/07/main.cpp
XcodeRole Mar 11, 2023
95c701c
Merge branch 'parallel101:master' into master
XcodeRole Mar 16, 2023
7d95b48
Merge branch 'parallel101:master' into master
XcodeRole Mar 20, 2023
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12 changes: 6 additions & 6 deletions 06/02_reduce/07/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,24 +18,24 @@ int main() {
float local_res = 0;
for (size_t i = beg; i < end; i++) {
local_res += std::sin(i);
a[i] = local_res;
}
tmp_res[t] = local_res;
});
}
tg1.wait();
for (size_t t = 0; t < maxt; t++) {
for (size_t t = 0; t < maxt-1; t++) {
tmp_res[t] += res;
res = tmp_res[t];
}
tbb::task_group tg2;
for (size_t t = 1; t < maxt; t++) {
size_t beg = t * n / maxt - 1;
size_t end = std::min(n, (t + 1) * n / maxt) - 1;
size_t beg = t * n / maxt;
size_t end = std::min(n, (t + 1) * n / maxt);
tg2.run([&, t, beg, end] {
float local_res = tmp_res[t];
float offset = tmp_res[t-1];
for (size_t i = beg; i < end; i++) {
local_res += std::sin(i);
a[i] = local_res;
a[i] += offset;
}
});
}
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