55   Vec          Zdot;         /* Ydot = Zdot + shift*Y */  member
1134   Vec             *Y = ros->Y, Ydot = ros->Ydot, Zdot = ros->Zdot, Zstage = ros->Zstage;  in TSStep_RosW()  local
1165       PetscCall(VecZeroEntries(Zdot));  in TSStep_RosW()
1166       PetscCall(VecMAXPY(Zdot, i, w, Y));  in TSStep_RosW()
1190         PetscCall(VecAXPY(Y[i], -1.0, Zdot)); /*Y[i] = F(Zstage)-Zdot[=GammaInv*Y]*/  in TSStep_RosW()
1199         PetscCall(MatMult(J, Zstage, Zdot));  in TSStep_RosW()
1200         PetscCall(VecAXPY(Y[i], -1.0, Zdot));  in TSStep_RosW()
1310   PetscCall(VecDestroy(&ros->Zdot));  in TSReset_RosW()
1316 static PetscErrorCode TSRosWGetVecs(TS ts, DM dm, Vec *Ydot, Vec *Zdot, Vec *Ystage, Vec *Zstage)  in TSRosWGetVecs()  argument
1325   if (Zdot) {  in TSRosWGetVecs()
1326     if (dm && dm != ts->dm) PetscCall(DMGetNamedGlobalVector(dm, "TSRosW_Zdot", Zdot));  in TSRosWGetVecs()
1327     else *Zdot = rw->Zdot;  in TSRosWGetVecs()
1340 static PetscErrorCode TSRosWRestoreVecs(TS ts, DM dm, Vec *Ydot, Vec *Zdot, Vec *Ystage, Vec *Zstag…  in TSRosWRestoreVecs()  argument
1346   if (Zdot) {  in TSRosWRestoreVecs()
1347     if (dm && dm != ts->dm) PetscCall(DMRestoreNamedGlobalVector(dm, "TSRosW_Zdot", Zdot));  in TSRosWRestoreVecs()
1367   Vec Ydot, Zdot, Ystage, Zstage;  in DMRestrictHook_TSRosW()  local
1371   PetscCall(TSRosWGetVecs(ts, fine, &Ydot, &Ystage, &Zdot, &Zstage));  in DMRestrictHook_TSRosW()
1377   PetscCall(MatRestrict(restrct, Zdot, Zdotc));  in DMRestrictHook_TSRosW()
1381   PetscCall(TSRosWRestoreVecs(ts, fine, &Ydot, &Ystage, &Zdot, &Zstage));  in DMRestrictHook_TSRosW()
1395   Vec Ydot, Zdot, Ystage, Zstage;  in DMSubDomainRestrictHook_TSRosW()  local
1399   PetscCall(TSRosWGetVecs(ts, dm, &Ydot, &Ystage, &Zdot, &Zstage));  in DMSubDomainRestrictHook_TSRosW()
1408   PetscCall(VecScatterBegin(gscat, Zdot, Zdots, INSERT_VALUES, SCATTER_FORWARD));  in DMSubDomainRestrictHook_TSRosW()
1409   PetscCall(VecScatterEnd(gscat, Zdot, Zdots, INSERT_VALUES, SCATTER_FORWARD));  in DMSubDomainRestrictHook_TSRosW()
1414   PetscCall(TSRosWRestoreVecs(ts, dm, &Ydot, &Ystage, &Zdot, &Zstage));  in DMSubDomainRestrictHook_TSRosW()
1422   Vec       Ydot, Zdot, Ystage, Zstage;  in SNESTSFormFunction_RosW()  local
1428   PetscCall(TSRosWGetVecs(ts, dm, &Ydot, &Zdot, &Ystage, &Zstage));  in SNESTSFormFunction_RosW()
1429   PetscCall(VecWAXPY(Ydot, shift, U, Zdot));   /* Ydot = shift*U + Zdot */  in SNESTSFormFunction_RosW()
1435   PetscCall(TSRosWRestoreVecs(ts, dm, &Ydot, &Zdot, &Ystage, &Zstage));  in SNESTSFormFunction_RosW()
1442   Vec       Ydot, Zdot, Ystage, Zstage;  in SNESTSFormJacobian_RosW()  local
1449   PetscCall(TSRosWGetVecs(ts, dm, &Ydot, &Zdot, &Ystage, &Zstage));  in SNESTSFormJacobian_RosW()
1454   PetscCall(TSRosWRestoreVecs(ts, dm, &Ydot, &Zdot, &Ystage, &Zstage));  in SNESTSFormJacobian_RosW()
1480   PetscCall(VecDuplicate(ts->vec_sol, &ros->Zdot));  in TSSetUp_RosW()