fr_import_lef "${MERGED_LEF}"
fr_import_def "${CURRENT_DEF}" 
set_output_file "${fastroute_tmp_file_tag}.guide"
set_capacity_adjustment ${GLB_RT_ADJUSTMENT}
set_min_layer ${GLB_RT_MINLAYER}
set_max_layer ${GLB_RT_MAXLAYER}
set_layer_adjustment 1 ${GLB_RT_LI1_ADJUSTMENT}
set_layer_adjustment 2 ${GLB_RT_MET1_ADJUSTMENT}
start_fastroute
run_fastroute
write_guides