65   IS           is_slow, is_slowbuffer, is_medium, is_mediumbuffer, is_fast;  member
661 …for (j = 0; j < i; j++) PetscCall(VecGetSubVector(YdotRHS[j], mprk->is_slowbuffer, &YdotRHS_slowbu…  in TSStep_MPRK()
662     PetscCall(VecGetSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRK()
664     PetscCall(VecRestoreSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRK()
665 …for (j = 0; j < i; j++) PetscCall(VecRestoreSubVector(YdotRHS[j], mprk->is_slowbuffer, &YdotRHS_sl…  in TSStep_MPRK()
748     PetscCall(VecGetSubVector(X, mprk->is_slowbuffer, &Xslowbuffer));  in TSEvaluateStep_MPRKSPLIT()
750     PetscCall(VecRestoreSubVector(X, mprk->is_slowbuffer, &Xslowbuffer));  in TSEvaluateStep_MPRKSPLIT()
754     PetscCall(VecGetSubVector(X, mprk->is_slowbuffer, &Xslowbuffer));  in TSEvaluateStep_MPRKSPLIT()
756     PetscCall(VecRestoreSubVector(X, mprk->is_slowbuffer, &Xslowbuffer));  in TSEvaluateStep_MPRKSPLIT()
809         PetscCall(VecGetSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRKSPLIT()
810         PetscCall(VecISCopy(Y[tab->rmb[i] - 1], mprk->is_slowbuffer, SCATTER_REVERSE, Yslowbuffer));  in TSStep_MPRKSPLIT()
811         PetscCall(VecRestoreSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRKSPLIT()
819         PetscCall(VecGetSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRKSPLIT()
821         PetscCall(VecRestoreSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRKSPLIT()
824       PetscCall(VecGetSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRKSPLIT()
826       PetscCall(VecRestoreSubVector(Y[i], mprk->is_slowbuffer, &Yslowbuffer));  in TSStep_MPRKSPLIT()
985     PetscCall(VecGetSubVector(ts->vec_sol, mprk->is_slowbuffer, &YdotRHS_slowbuffer));  in TSMPRKTableauSetUp()
987     PetscCall(VecRestoreSubVector(ts->vec_sol, mprk->is_slowbuffer, &YdotRHS_slowbuffer));  in TSMPRKTableauSetUp()
1036   PetscCall(TSRHSSplitGetIS(ts, "slowbuffer", &mprk->is_slowbuffer));  in TSSetUp_MPRK()
1037   if (!mprk->is_slowbuffer) { /* let slow buffer cover whole slow region */  in TSSetUp_MPRK()
1038     mprk->is_slowbuffer = mprk->is_slow;  in TSSetUp_MPRK()