modified temper_grem example with more exchanges

# LJ particles

# LJ particles

variable        lambda world 400 410 420 430

variable        lambda world 400 405 410 415

variable        rep world 1 2 3 4

variable        rep world 0 1 2 3 

#variable        walker world 1 2 3 4

#variable        walker world 1 0 2 3

variable        T0 equal 300.0

variable        T0 equal 300.0

variable        press equal 0.0

variable        press equal 0.0

fix             fxgREM all grem ${lambda} -.01 -30000 fxnpt

fix             fxgREM all grem ${lambda} -.01 -30000 fxnpt

thermo_modify   press fxgREM_press

thermo_modify   press fxgREM_press

grem            10000 1000 ${lambda} fxgREM fxnpt 10294 98392 

grem            5000 100 ${lambda} fxgREM fxnpt 10294 98392 #${walker}

#write_data      lj-out.data

#write_data      lj-out.data