Synopsis
		sffdac2d slo=Fslo.rsf glo=Fglo.rsf vel=Fvel.rsf wavelet=Fwav.rsf frec=Frec.rsf verb=y npml= nthreads=

Parameters
		file frec= auxiliary output file name   file glo= auxiliary input file name   npml= Grid points for PML   nthreads= Threads for OMP   file slo= auxiliary input file name   file vel= auxiliary input file name   verb=y   file wavelet= auxiliary input file name