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Commit a65150da authored by Folkert Nobels's avatar Folkert Nobels
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Add improved random number generator

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1 merge request!742Fix the random number generator
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src/random.h
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...@@ -85,7 +85,7 @@ INLINE static double random_unit_interval(const long long int id, ...@@ -85,7 +85,7 @@ INLINE static double random_unit_interval(const long long int id,
number ^= number << 21; number ^= number << 21;
number ^= number >> 35; number ^= number >> 35;
number ^= number << 4; number ^= number << 4;
const unsigned long long idpart = 3457LL * id + 593LL * id * ti_current; const unsigned long long idpart = 3457LL * id + 593LL * id * ti_current + 5417LL * id * id;
unsigned int seed = unsigned int seed =
(937LL * number + 5171LL * number * number + idpart + 1109LL) % (937LL * number + 5171LL * number * number + idpart + 1109LL) %
9996361LL % seed_range; 9996361LL % seed_range;
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