if(!actGradScopedOut && !dLdIn.data().getParentWorkspace().getId().equals(wsNameActGrad)){
            dLdIn = workspaceMgr.dup(ArrayType.ACTIVATION_GRAD, dLdIn);
        } else if(actGradScopedOut && dLdIn.isAttached()){
            dLdIn = dLdIn.detach();
        }