Synopsis
		sfadjgradient2d_coupled_gpu < Fvel1.rsf vel2=Fvel2.rsf xig1=Fxig1.rsf xig2=Fxig2.rsf us1=Fus1.rsf ur1=Fur1.rsf us2=Fus2.rsf ur2=Fur2.rsf > Fgrd1.rsf grd2=Fgrd2.rsf nxtap=40 hzero=5 verbose=n epsDSO=1.f eps4D=0.f gpu=0

Parameters
		float eps4D=0.f Weighting for 4D penalty   float epsDSO=1.f Weighting for DSO penalty   int gpu=0 ID of the GPU to be used   file grd2= auxiliary output file name   int hzero=5 Number of near offsets to zero   int nxtap=40 TAPER size   file ur1= auxiliary input file name   file ur2= auxiliary input file name   file us1= auxiliary input file name   file us2= auxiliary input file name   file vel2= auxiliary input file name   bool verbose=n [y/n] VERBOSITY flag   file xig1= auxiliary input file name   file xig2= auxiliary input file name