X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=pytorch.git;a=blobdiff_plain;f=ae_size.py;h=067a7fa7bc1d44f4330e7f37fe1e511d3fd92045;hp=25ecc4a13222f176356028c93e32a69858e413d9;hb=HEAD;hpb=10f39c31de6f66ff238b661c86ab6a29dc4f0b7f diff --git a/ae_size.py b/ae_size.py index 25ecc4a..49f4a20 100755 --- a/ae_size.py +++ b/ae_size.py @@ -1,30 +1,37 @@ #!/usr/bin/env python +# Any copyright is dedicated to the Public Domain. +# https://creativecommons.org/publicdomain/zero/1.0/ + +# Written by Francois Fleuret + import math from torch import nn from torch import Tensor ###################################################################### + def minimal_input_size(w, layer_specs): - assert w > 0, 'The input is too small' + assert w > 0, "The input is too small" if layer_specs == []: return w else: kernel_size, stride = layer_specs[0] - w = math.ceil((w - kernel_size) / stride) + 1 - w = minimal_input_size(w, layer_specs[1:]) - return int((w - 1) * stride + kernel_size) + v = int(math.ceil((w - kernel_size) / stride)) + 1 + v = minimal_input_size(v, layer_specs[1:]) + return (v - 1) * stride + kernel_size + ###################################################################### # Dummy test if __name__ == "__main__": - - layer_specs = [ (11, 5), (5, 4), (3, 2), (3, 2) ] + layer_specs = [(17, 5), (5, 4), (3, 2), (3, 2)] layers = [] + for kernel_size, stride in layer_specs: layers.append(nn.Conv2d(1, 1, kernel_size, stride))