Question: BYOC : replace nn.conv2d() to our nucfpga_conv2d()

This doesn’t look right tho. It should be like

%1 = fn(..., kPrimitive=1, kCompiler="nuc_fpga")  {
  nn.conv2d(...);
}
%2 = %1(...);
%3 = nn.bias_add(...);
%4 = nn.relu(...);

Please check your annotation rules.