[ENHANCEMENT]: 128bit hash function
sleeepyjack opened this issue · comments
Is your feature request related to a problem? Please describe.
cuco::static_filter will require a 128bit hash function implementation which we currently don't have in cuco.
Describe the solution you'd like
cudf has a murmurhash3_64_128 implementation which we can simply copy&paste.
We have to make sure that the hash values produced by our hasher match the reference implementation (both cudf and the original Murmur3 implementation).
Describe alternatives you've considered
There is also a 128bit implementation of XXHash, namely XXH128.
Unfortunately, it's quite complex AVX code which makes it harder for us to port to the GPU.
Additional context
No response
FYI, corresponding cudf unit tests is here
Closed via #495