Editing Input syntax manual (section)

=== set rfw ===

 '''set rfw''' ''OPT'' [ ''FILE'' ]
Writes material compositions in burnup calculation into a binary restart file. Input values:

{|
| <tt>''OPT''</tt>
| : option to switch writing on (0 = no, non-zero = yes; with, 1= all nuclides, 2 = transport nuclides). The default option is "<tt>off</tt>"
|-
| <tt>''FILE''</tt>
| : name of the binary restart file. The default name is <tt>[input].wrk</tt>.
|}

<u>Notes:</u>
*This option can be used together with the [[#set rfr|set rfr]] feature for applying changes in the modeled system during burnup calculation.
*Nuclides included:
**<tt>''OPT'' 1</tt>: all nuclides
**<tt>''OPT'' 2</tt>: only transport nuclides, option introduced in version 2.2.0
*Domain decomposition feature ([[#set dd|set dd]] option), from version 2.1.32:
**It generates multiple restart files - as many as domains (MPI tasks) are defined
**The files are named adding <tt>_dd[mpiid]</tt> (domain decomposition identifier) to the standard file name.