diff options
Diffstat (limited to 'ethosu/vela/tflite_graph_optimiser.py')
| -rw-r--r-- | ethosu/vela/tflite_graph_optimiser.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/ethosu/vela/tflite_graph_optimiser.py b/ethosu/vela/tflite_graph_optimiser.py index 794a6ec..ae11bec 100644 --- a/ethosu/vela/tflite_graph_optimiser.py +++ b/ethosu/vela/tflite_graph_optimiser.py @@ -1170,6 +1170,26 @@ def fixup_strided_conv(op: Operation, arch, nng): stride_x = final_stride op.attrs.update({"stride_w": stride_x, "stride_h": stride_y, "strides": (1, stride_y, stride_x, 1)}) + ofm_shape = op.ofm_shapes[0] + if ofm_shape.height == 1 or ofm_shape.width == 1: + # If height or width is 1 no stride is done in y or x direction and stride value can be set to 1 + # Before forcing kernel stride to 1 make sure to calculate the correct padding since it is + # based on the original kernel stride + padding, _ = calc_padding_and_skirt( + op.attrs["padding"], + op.kernel, + ifm_shape, + op.attrs.get("explicit_padding"), + ) + # Use explicit padding so it is not recalculated later with the wrong kernel stride + op.attrs["padding"] = Padding.EXPLICIT + op.attrs["explicit_padding"] = padding + + stride_y = 1 if ofm_shape.height == 1 else stride_y + stride_x = 1 if ofm_shape.width == 1 else stride_x + + op.attrs.update({"stride_w": stride_x, "stride_h": stride_y, "strides": (1, stride_y, stride_x, 1)}) + return op |