ENH parallel batches for n-slack SSVM
ENH parallel batches for n-slack SSVM

pystruct/pystruct,amueller/pystruct,massmutual/pystruct,pystruct/pystruct,d-mittal/pystruct,wattlebird/pystruct,amueller/pystruct,d-mittal/pystruct,wattlebird/pystruct,massmutual/pystruct