# 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 convolution.""" import os import numpy as np import tvm import topi import topi.testing from tvm.contrib.pickle_memoize import memoize from topi.util import get_const_tuple def verify_conv2d_nhwc(batch, in_channel, in_size, num_filter, kernel, stride, padding, dilation=1): in_height = in_width = in_size A = tvm.placeholder((batch, in_height, in_width, in_channel), name='A') W = tvm.placeholder((kernel, kernel, in_channel, num_filter), name='W') a_shape = get_const_tuple(A.shape) w_shape = get_const_tuple(W.shape) dtype = A.dtype @memoize("topi.tests.test_topi_conv2d_nhwc.verify_nhwc.v2") def get_ref_data(): a_np = np.random.uniform(size=a_shape).astype(dtype) w_np = np.random.uniform(size=w_shape).astype(dtype) dw_np = topi.testing.dilate_python(w_np, (dilation, dilation, 1, 1)) b_np = topi.testing.conv2d_nhwc_python(a_np, dw_np, stride, padding) return a_np, w_np, b_np a_np, w_np, b_np = get_ref_data() def check_device(device): if not tvm.runtime.enabled(device): print("Skip because %s is not enabled" % device) return print("Running on target: %s" % device) with tvm.target.create(device): B = topi.nn.conv2d(A, W, (stride, stride), padding, (dilation, dilation), layout='NHWC', out_dtype=dtype) s = topi.generic.schedule_conv2d_nhwc([B]) ctx = tvm.context(device, 0) a = tvm.nd.array(a_np, ctx) w = tvm.nd.array(w_np, ctx) b = tvm.nd.array(np.zeros(get_const_tuple(B.shape), dtype=B.dtype), ctx) func = tvm.build(s, [A, W, B], device) func(a, w, b) tvm.testing.assert_allclose(b.asnumpy(), b_np, rtol=1e-5) for device in ['llvm', 'cuda']: check_device(device) def test_conv2d_nhwc(): verify_conv2d_nhwc(1, 256, 32, 256, 3, 1, "SAME") verify_conv2d_nhwc(4, 128, 16, 128, 5, 2, "SAME") verify_conv2d_nhwc(4, 128, 16, 256, 5, 2, "SAME") verify_conv2d_nhwc(1, 256, 32, 256, 3, 1, "VALID") verify_conv2d_nhwc(1, 256, 32, 256, 3, 1, "VALID") verify_conv2d_nhwc(4, 128, 16, 128, 5, 2, "VALID") verify_conv2d_nhwc(4, 128, 16, 256, 5, 2, "VALID") verify_conv2d_nhwc(1, 128, 16, 256, 3, 2, (0, 0, 1, 1)) verify_conv2d_nhwc(1, 128, 16, 256, 3, 2, (1, 1, 2, 2)) verify_conv2d_nhwc(1, 128, 16, 128, 5, 2, (3, 3, 2, 2)) verify_conv2d_nhwc(1, 128, 16, 256, 3, 2, (0, 1, 2, 3)) # dilation = 2 verify_conv2d_nhwc(1, 256, 32, 256, 3, 1, "SAME", dilation=2) verify_conv2d_nhwc(1, 256, 32, 256, 3, 1, (1, 1, 2, 2), dilation=2) if __name__ == "__main__": test_conv2d_nhwc()