README:
- compile with cpl make scddns -fopenmp
- if -fopenmp is omitted, the serial version is obtained instead of the OpenMP version
- run as scddns []
- defaults to scddns0.dat if omitted
- the input file contains a number of parameters of the form name=value, optionally followed by a velocity field as binary data
- alternately an additional parameter of the form Vfield=
- if no binary data or alternate file are present, a random initial field is generated.
- output velocity fields, sequentially numbered as scddns