Thanks for the clarification.
Yes the deconvolution is a bit weird.
I tried to calculate myself as follow
The flops for deconvolution is:
Cout * (1+Cin * k * k) * Hout * Wout
= 1 * (1+56 * 9 * 9) * 3000 * 3000
= 40.83 GFlops.
This value is closed to the pytorch calculated flops, but different to tensorflow did.