EVOLUTION-MANAGER

Edit File: cupy.py

""" Required functions for optimized contractions of numpy arrays using cupy. """ import numpy as np from ..sharing import to_backend_cache_wrap __all__ = ["to_cupy", "build_expression", "evaluate_constants"] @to_backend_cache_wrap def to_cupy(array): # pragma: no cover import cupy if isinstance(array, np.ndarray): return cupy.asarray(array) return array def build_expression(_, expr): # pragma: no cover """Build a cupy function based on ``arrays`` and ``expr``. """ def cupy_contract(*arrays): return expr._contract([to_cupy(x) for x in arrays], backend='cupy').get() return cupy_contract def evaluate_constants(const_arrays, expr): # pragma: no cover """Convert constant arguments to cupy arrays, and perform any possible constant contractions. """ return expr(*[to_cupy(x) for x in const_arrays], backend='cupy', evaluate_constants=True)