is_cuda

FixedRotationKey.is_cuda

Is True if the fixed rotation 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_rotation_key = gpu_engine.create_fixed_rotation_key(
    gpu_secret_key, delta=1
)

assert gpu_fixed_rotation_key.is_cuda

cpu_engine = Engine(mode="cpu")
cpu_secret_key = cpu_engine.create_secret_key()
cpu_fixed_rotation_key = cpu_engine.create_fixed_rotation_key(
    cpu_secret_key, delta=1
)

assert not cpu_fixed_rotation_key.is_cuda