Hi,
In openfhe-hexl repo, HEXL_ADD_ENABLE flag seems to be disabled by default as seen here. Is there a special reason why it is not enabled?
Kindly
My recollection is that HEXL_ADD_ENABLE is disabled because the HEXL-enabled code becomes slower than regular CPU code. The main bottleneck in the case of additions is data movement (rather than the computational complexity). In the case of multiplications, where the computational complexity is higher, the HEXL mode outperforms the regular CPU mode.