output_file= argv[2]+2;
if (asprintf(&output_file_tmp,"%s.new",output_file) <= 0) diee("asprintf");
+ graph_layout_prepare();
+
minimiser= gsl_multimin_fminimizer_alloc
(gsl_multimin_fminimizer_nmsimplex, DIM);
if (!minimiser) { perror("alloc minimiser"); exit(-1); }