# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. """Example code to do reorg.""" import numpy as np import topi from topi.util import get_const_tuple import tvm from tvm import te import topi.testing _reorg_schedule = { "generic": topi.generic.schedule_reorg, "gpu": topi.cuda.schedule_reorg, } def verify_reorg(batch, in_size, in_channel, stride): '''Verify reorg operator by comparing outputs from tvm and numpy implementation''' in_height = in_width = in_size A = te.placeholder((batch, in_channel, in_height, in_width), name='A') B = topi.vision.reorg(A, stride) a_shape = get_const_tuple(A.shape) dtype = A.dtype def get_ref_data_reorg(): a_np = np.random.uniform(size=a_shape).astype(dtype) b_np = topi.testing.reorg_python(a_np, stride) return a_np, b_np a_np, b_np = get_ref_data_reorg() def check_device(device): '''Cheching devices is enabled or not''' ctx = tvm.context(device, 0) if not ctx.exist: print("Skip because %s is not enabled" % device) return print("Running on target: %s" % device) with tvm.target.create(device): s_func = topi.testing.dispatch(device, _reorg_schedule) s = s_func([B]) a = tvm.nd.array(a_np, ctx) b = tvm.nd.array(np.zeros(get_const_tuple(B.shape), dtype=B.dtype), ctx) func = tvm.build(s, [A, B], device) func(a, b) tvm.testing.assert_allclose(b.asnumpy(), b_np, rtol=1e-5) for device in ['llvm', 'cuda']: check_device(device) def test_reorg(): verify_reorg(1, 20, 8, 2) if __name__ == "__main__": test_reorg()