125   IS               is_slow = rk->is_slow;  in TSStep_RK_MultirateNonsplit()  local
154   PetscCall(VecGetSubVector(sol_slow, is_slow, &subvec_slow));  in TSStep_RK_MultirateNonsplit()
155   PetscCall(VecISCopy(ts->vec_sol, is_slow, SCATTER_FORWARD, subvec_slow));  in TSStep_RK_MultirateNonsplit()
156   PetscCall(VecRestoreSubVector(sol_slow, is_slow, &subvec_slow));  in TSStep_RK_MultirateNonsplit()
179   PetscCall(TSRHSSplitGetIS(ts, "slow", &rk->is_slow));  in TSSetUp_RK_MultirateNonsplit()
181 …PetscCheck(rk->is_slow && rk->is_fast, PetscObjectComm((PetscObject)ts), PETSC_ERR_USER, "Must set…  in TSSetUp_RK_MultirateNonsplit()
263 …for (i = 0; i < s; i++) PetscCall(VecGetSubVector(rk->YdotRHS[i], rk->is_slow, &rk->YdotRHS_slow[i…  in TSInterpolate_RK_MultirateSplit()
264   PetscCall(VecGetSubVector(X, rk->is_slow, &Xslow));  in TSInterpolate_RK_MultirateSplit()
265   PetscCall(VecISCopy(rk->X0, rk->is_slow, SCATTER_REVERSE, Xslow));  in TSInterpolate_RK_MultirateSplit()
267   PetscCall(VecRestoreSubVector(X, rk->is_slow, &Xslow));  in TSInterpolate_RK_MultirateSplit()
268 …for (i = 0; i < s; i++) PetscCall(VecRestoreSubVector(rk->YdotRHS[i], rk->is_slow, &rk->YdotRHS_sl…  in TSInterpolate_RK_MultirateSplit()
293     PetscCall(VecGetSubVector(ts->vec_sol, rk->is_slow, &Xslow));  in TSEvaluateStep_RK_MultirateSplit()
295     PetscCall(VecRestoreSubVector(ts->vec_sol, rk->is_slow, &Xslow));  in TSEvaluateStep_RK_MultirateSplit()
380     PetscCall(VecGetSubVector(YdotRHS[i], rk->is_slow, &YdotRHS_slow[i]));  in TSStep_RK_MultirateSplit()
390     PetscCall(VecGetSubVector(Y[i], rk->is_slow, &Yslow));  in TSStep_RK_MultirateSplit()
395     PetscCall(VecRestoreSubVector(Y[i], rk->is_slow, &Yslow));  in TSStep_RK_MultirateSplit()
405     PetscCall(VecRestoreSubVector(YdotRHS[i], rk->is_slow, &YdotRHS_slow[i]));  in TSStep_RK_MultirateSplit()
424   PetscCall(TSRHSSplitGetIS(ts, "slow", &rk->is_slow));  in TSSetUp_RK_MultirateSplit()
426 …PetscCheck(rk->is_slow && rk->is_fast, PetscObjectComm((PetscObject)ts), PETSC_ERR_USER, "Must set…  in TSSetUp_RK_MultirateSplit()
460     PetscCall(TSRHSSplitGetIS(nextlevelts, "slow", &nextlevelrk->is_slow));  in TSSetUp_RK_MultirateSplit()