Depthwise convolution for oneAPI

[laurilaatu]

Description

📝 This pull request adds Depthwise convolution to oneAPI backend.

Type of change

Adding Depthwise convolution in a parallel implementation. Supports depth multiplier. When a separable convolution layer is used, it is split to depthwise and pointwise layers.

Note: Please delete options that are not relevant.

• Bug fix (non-breaking change that fixes an issue)
• Documentation update
• New feature (non-breaking change which adds functionality)
• A new research paper code implementation
• Other (Specify)

Tests

📝 Pytests included and models compiled with depthwise and separable convolution.

Test Configuration:

model = Sequential()
model.add(DepthwiseConv2D(input_shape = (10,10,3), kernel_size=(3,3), padding="same", depth_multiplier=2, activation='relu', strides=(2,2)))
model.compile(loss='mse', optimizer=Adam())
model.summary()

config = hls4ml.utils.config_from_keras_model(model, granularity='name', default_precision='ac_fixed<16, 6>')
hls_model = hls4ml.converters.convert_from_keras_model(model=model, output_dir="model_dconv_out", backend="oneAPI", part="Agilex7", hls_config=config)
hls_model.compile()

Checklist

• I have read the guidelines for contributing.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have installed and run pre-commit on the files I edited or added.
• I have added tests that prove my fix is effective or that my feature works.

[jmitrevs]

Is it worth adding 1D versions, too?

[jmitrevs]

Why so many commits? Is it worth rebasing on a new branch from main?

[JanFSchulte]

Will this really add 129 new commits, or is this just some confusion? Might be good to squash the commits to prevent that.

[jmitrevs]

It should be squashed.

[jmitrevs]

The squashing would be when we merge the PR, by selecting squash and merge, right? There's no need to manually squash the commits.

[JanFSchulte]

Ah, yes. I was looking for a squash button yesterday, didn't realize it was in the drop down next to the green button. I'll merge now.