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user_send_feasible_solution

int user_send_feasible_solution(void *user, double lpetol,
                                int varnum, int *indices, double *values)

Description:

This function is only used for parallel computation. The user can send a feasible solution in custom format to the master module if desired. However, the default routine suffices in most situations. The solution is sent using the communication functions described in Section 4.2.4 in whatever logical format the user wants to use. The default is to pack the user indices and values of variables at non-zero level. If the user packs the solution herself then the same data must be packed here that will be received in the user_receive_feasible_solution() function in the master module. See the description of that function for details. This function will only be called when either the LP or tree manager are running as a separate executable. Otherwise, the solution gets stored within the LP user data structure.

Arguments:

void *user	IN	Pointer to the user-defined LP data structure.
double lpetol	IN	The $\epsilon$ tolerance of the LP solver.
int varnum	IN	The length of the indices and values arrays.
int *indices	IN	User indices of variables at nonzero level in the current solution.
double *values	IN	Values of the variables listed in indices.

Return values:

USER_ERROR	Error. Do the default.
USER_SUCCESS	User packed the solution.
USER_DEFAULT	Regulated by the parameter pack_feasible_solution_default, but set to SEND_NONZEROS unless overridden by the user.
SEND_NONZEROS	Pack the nonzero values and their indices.

Wrapper invoked:

as soon as feasibility is detected anywhere.