sum += dev;
}
- return __hash_u64(sum) % gs->nranges;
+ if (!gs->disable_hash)
+ return __hash_u64(sum) % gs->nranges;
+
+ return sum % gs->nranges;
}
void gauss_init(struct gauss_state *gs, unsigned long nranges, double dev,
gs->stddev = nranges / 2;
}
}
+
+void gauss_disable_hash(struct gauss_state *gs)
+{
+ gs->disable_hash = true;
+}
struct frand_state r;
uint64_t nranges;
unsigned int stddev;
+ bool disable_hash;
};
void gauss_init(struct gauss_state *gs, unsigned long nranges, double dev,
unsigned int seed);
unsigned long long gauss_next(struct gauss_state *gs);
+void gauss_disable_hash(struct gauss_state *gs);
#endif
else
val = 1 + (unsigned long long)(n * pow(eta*rand_uni - eta + 1.0, alpha));
- return (__hash_u64(val - 1) + zs->rand_off) % zs->nranges;
+ if (!zs->disable_hash)
+ return (__hash_u64(val - 1) + zs->rand_off) % zs->nranges;
+
+ return (val - 1 + zs->rand_off) % zs->nranges;
}
void pareto_init(struct zipf_state *zs, unsigned long nranges, double h,
double rand = (double) __rand(&zs->rand) / (double) FRAND32_MAX;
unsigned long long n = zs->nranges - 1;
- return (__hash_u64(n * pow(rand, zs->pareto_pow)) + zs->rand_off) % zs->nranges;
+ if (!zs->disable_hash)
+ return (__hash_u64(n * pow(rand, zs->pareto_pow)) + zs->rand_off) % zs->nranges;
+
+ return (unsigned long long) (n * pow(rand, zs->pareto_pow) + zs->rand_off) % zs->nranges;
+}
+
+void zipf_disable_hash(struct zipf_state *zs)
+{
+ zs->disable_hash = true;
}
double pareto_pow;
struct frand_state rand;
uint64_t rand_off;
+ bool disable_hash;
};
void zipf_init(struct zipf_state *zs, unsigned long nranges, double theta, unsigned int seed);
void pareto_init(struct zipf_state *zs, unsigned long nranges, double h, unsigned int seed);
unsigned long long pareto_next(struct zipf_state *zs);
+void zipf_disable_hash(struct zipf_state *zs);
#endif