No DSP HW Utilization

[Ba1tu3han]

Hello,

Even if I select restype as "dsp" for MVAU layers in custom folding configuration file, in the synthesis report always DSP utilization is zero.

When I run the same setting with FINN which is written below, DPS utilization is very high around %85 and BRAM and LUTRAM are almost the same.

I don't know whether actually DSP is used or not. Is it a issue or just about a setting?

Custom config file, final HW config and ooc_synth_and_timing.json are enclosed.

Vivado Synthesis and Implementation Settings (link)

set_property strategy Flow_PerfOptimized_high [get_runs synth_1]
set_property STEPS.SYNTH_DESIGN.ARGS.DIRECTIVE AlternateRoutability [get_runs synth_1]
set_property STEPS.SYNTH_DESIGN.ARGS.RETIMING true [get_runs synth_1]
set_property strategy Performance_ExtraTimingOpt [get_runs impl_1]
set_property STEPS.OPT_DESIGN.ARGS.DIRECTIVE Explore [get_runs impl_1]
set_property STEPS.POST_ROUTE_PHYS_OPT_DESIGN.ARGS.DIRECTIVE AggressiveExplore [get_runs impl_1]
set_property STEPS.PHYS_OPT_DESIGN.ARGS.DIRECTIVE AggressiveExplore [get_runs impl_1]
set_property STEPS.POST_ROUTE_PHYS_OPT_DESIGN.IS_ENABLED true [get_runs impl_1]

[final_hw_config.json](
custom_folding_config.json
https://github.com/user-attachments/files/17267093/final_hw_config.json)

ooc_synth_and_timing.json