is_cuda

FixedRollKey.is_cuda

Is True if the fixed roll key is stored on the GPU, False otherwise.

• Output
  • boolean

from desilofhe import Engine

gpu_engine = Engine(mode="gpu")
gpu_secret_key = gpu_engine.create_secret_key()
gpu_fixed_roll_key = gpu_engine.create_fixed_roll_key(gpu_secret_key, delta=1)

assert gpu_fixed_roll_key.is_cuda

cpu_engine = Engine(mode="cpu")
cpu_secret_key = cpu_engine.create_secret_key()
cpu_fixed_roll_key = cpu_engine.create_fixed_roll_key(cpu_secret_key, delta=1)

assert not cpu_fixed_roll_key.is_cuda