writing a checkpoint after opt_design
writing a checkpoint after opt_design

Change-Id: Ibd9886233b45646869c76666284b9d9c6924a2d1

csail-csg/connectal,hanw/connectal,hanw/connectal,chenm001/connectal,csail-csg/connectal,cambridgehackers/connectal,chenm001/connectal,8l/connectal,cambridgehackers/connectal,csail-csg/connectal,8l/connectal,hanw/connectal,8l/connectal,chenm001/connectal,chenm001/connectal,8l/connectal,hanw/connectal,cambridgehackers/connectal,chenm001/connectal,csail-csg/connectal,cambridgehackers/connectal,cambridgehackers/connectal,csail-csg/connectal,8l/connectal,hanw/connectal