bound_mult_init_method:

Initialization method for bound multipliers $\;$
This option defines how the iterates for the bound multipliers are initialized. If "constant" is chosen, then all bound multipliers are initialized to the value of "bound_mult_init_val". If "mu-based" is chosen, the each value is initialized to the the value of "mu_init" divided by the corresponding slack variable. This latter option might be useful if the starting point is close to the optimal solution. The default value for this string option is "constant".
Possible values:

• constant: set all bound multipliers to the value of bound_mult_init_val
• mu-based: initialize to mu_init/x_slack