645   Vec              Yslow, Yslowbuffer, Yfast;  in TSStep_MPRK()  local
669       PetscCall(VecGetSubVector(Y[i], mprk->is_slow, &Yslow));  in TSStep_MPRK()
670       PetscCall(VecMAXPY(Yslow, i, wsb, mprk->YdotRHS_slow));  in TSStep_MPRK()
671       PetscCall(VecRestoreSubVector(Y[i], mprk->is_slow, &Yslow));  in TSStep_MPRK()
791 …Vec              Yslow, Yslowbuffer, Yfast; /* subvectors for slow and fast components in Y[i] res…  in TSStep_MPRKSPLIT()  local
832         PetscCall(VecGetSubVector(Y[i], mprk->is_slow, &Yslow));  in TSStep_MPRKSPLIT()
833         PetscCall(VecISCopy(Y[tab->rsb[i] - 1], mprk->is_slow, SCATTER_REVERSE, Yslow));  in TSStep_MPRKSPLIT()
834         PetscCall(VecRestoreSubVector(Y[i], mprk->is_slow, &Yslow));  in TSStep_MPRKSPLIT()
841         PetscCall(VecGetSubVector(Y[i], mprk->is_slow, &Yslow));  in TSStep_MPRKSPLIT()
842         PetscCall(VecMAXPY(Yslow, computedstages, ws, YdotRHS_slow));  in TSStep_MPRKSPLIT()
843         PetscCall(VecRestoreSubVector(Y[i], mprk->is_slow, &Yslow));  in TSStep_MPRKSPLIT()