13   Vec          Z;          /* For shift*(Y-Z) */  member
46   Vec       Y = ext->Y, Z = ext->Z;  in TSStage_EIMEX()  local
61     PetscCall(VecCopy(Y, Z)); /* Save the solution of the previous substep */  in TSStage_EIMEX()
183   PetscCall(VecDestroy(&ext->Z));  in TSReset_EIMEX()
203 static PetscErrorCode TSEIMEXGetVecs(TS ts, DM dm, Vec *Z, Vec *Ydot, Vec *YdotI, Vec *YdotRHS)  in TSEIMEXGetVecs()  argument
208   if (Z) {  in TSEIMEXGetVecs()
209     if (dm && dm != ts->dm) PetscCall(DMGetNamedGlobalVector(dm, "TSEIMEX_Z", Z));  in TSEIMEXGetVecs()
210     else *Z = ext->Z;  in TSEIMEXGetVecs()
227 static PetscErrorCode TSEIMEXRestoreVecs(TS ts, DM dm, Vec *Z, Vec *Ydot, Vec *YdotI, Vec *YdotRHS)  in TSEIMEXRestoreVecs()  argument
230   if (Z) {  in TSEIMEXRestoreVecs()
231     if (dm && dm != ts->dm) PetscCall(DMRestoreNamedGlobalVector(dm, "TSEIMEX_Z", Z));  in TSEIMEXRestoreVecs()
254   Vec       Ydot, Z;  in SNESTSFormFunction_EIMEX()  local
261   PetscCall(TSEIMEXGetVecs(ts, dm, &Z, &Ydot, NULL, NULL));  in SNESTSFormFunction_EIMEX()
269   PetscCall(TSEIMEXRestoreVecs(ts, dm, &Z, &Ydot, NULL, NULL));  in SNESTSFormFunction_EIMEX()
304   Vec Z, Z_c;  in DMRestrictHook_TSEIMEX()  local
307   PetscCall(TSEIMEXGetVecs(ts, fine, &Z, NULL, NULL, NULL));  in DMRestrictHook_TSEIMEX()
309   PetscCall(MatRestrict(restrct, Z, Z_c));  in DMRestrictHook_TSEIMEX()
311   PetscCall(TSEIMEXRestoreVecs(ts, fine, &Z, NULL, NULL, NULL));  in DMRestrictHook_TSEIMEX()
346   PetscCall(VecDuplicate(ts->vec_sol, &ext->Z));  in TSSetUp_EIMEX()