Currently vitis does not support FIFO Buffer Depth Optimization?

[layson-inventor]

In the document, I learned that vivado can perform FIFO deep optimization through the following code,

import hls4ml

config = hls4ml.utils.config_from_keras_model(model, granularity='model')
config['Flows'] = ['vivado:fifo_depth_optimization']
hls4ml.model.optimizer.get_optimizer('vivado:fifo_depth_optimization').configure(profiling_fifo_depth=100_000)

hls_model = hls4ml.converters.convert_from_keras_model(model,
                                                       io_type='io_stream',
                                                       hls_config=config,
                                                       output_dir='hls4mlprj_fifo_depth_opt',
                                                       part='xc7z020clg400-1',
                                                       backend='Vivado')

hls_model.build(reset=False, csim=True, synth=True, cosim=True)

But I changed the backend from vivado to vitis, it seems that the function is not implemented.The following code will report an error.

config['Flows'] = ['vitis:fifo_depth_optimization']

I want to confirm whether my code is not written correctly, or the FIFO deep optimization function of vitis has not been implemented yet?

[vloncar]

There's one planned, hopefully merged soon. See #1037

[layson-inventor]

I'm looking forward to this being merged soon. The running speed of Vitis is much faster than that of Vivado.