> library(TSP)
> solve_TSP(TSP(cbind(rbind(as.matrix(eurodist),0),0)),method="Concorde")
Used parameters:
clo       =
precision =  6
exe	  =  /usr/local/bin/concorde
verbose	  =  TRUE
Warning in tsp_concorde(x_, control = control) :
  Concorde can only handle distances < 2^31. Reducing precision for Concorde to 4
/usr/local/bin/concorde -x -o file398162524f33.sol file398162524f33.dat
Host: marianga  Current process id: 14881
Using random seed 1507242045
Problem Name: TSP
Generated by write_TSPLIB (R-package TSP)
Problem Type: TSP
Number of Nodes: 22
Explicit Lengths (CC_MATRIXNORM)
Set initial upperbound to 100950000 (from tour)
need to link an lp solver to use this function
CClp_create_info failed
need to link an lp solver to use this function
CCtsp_read_probfile or first_lp failed
need to link an lp solver to use this function
CCtsp_init_lp failed
object of class ‘TOUR’
result of method ‘concorde’ for 22 cities
tour length: 10095