Program sfwei | 3-D modeling/migration with extended SSF 
[SYNOPSIS]
sfwei slo=Fslo.rsf < Fsou.rsf dat=Frec.rsf > Fcic.rsf coo=Fcoo.rsf cip=Feic.rsf > Fwfl.rsf verb=n causal=n causal=n irun=
[PARAMETERS]
bool    | causal | =n |  [y/n] | 	causality 
file    | cip | = |   | 	auxiliary output file name
file    | coo | = |   | 	auxiliary input file name
file    | dat | = |   | 	auxiliary input file name
string  | irun | = |   | 	
file    | slo | = |   | 	auxiliary input file name
bool    | verb | =n |  [y/n] | 	verbosity flag 
[DIRECTORY]
user/psava
