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#define FNV_PRIME 0x01000193
#define fnv(x,y) ((x) * FNV_PRIME ^(y))
__device__ uint4 fnv4(uint4 a, uint4 b)
{
uint4 c;
c.x = a.x * FNV_PRIME ^ b.x;
c.y = a.y * FNV_PRIME ^ b.y;
c.z = a.z * FNV_PRIME ^ b.z;
c.w = a.w * FNV_PRIME ^ b.w;
return c;
}
__device__ uint32_t fnv_reduce(uint4 v)
{
return fnv(fnv(fnv(v.x, v.y), v.z), v.w);
}