23   Vec       X0, Xa, X1;  member
44     PetscCall(TSResizeRegisterVec(ts, "ts:theta:X0", th->X0));  in TSResizeRegister_Alpha()
48     PetscCall(TSResizeRetrieveVec(ts, "ts:theta:X0", &th->X0));  in TSResizeRegister_Alpha()
49     PetscCall(PetscObjectReference((PetscObject)th->X0));  in TSResizeRegister_Alpha()
75   Vec       X0 = th->X0, V0 = th->V0;  in TSAlpha_StageVecs()  local
83   PetscCall(VecWAXPY(V1, -1.0, X0, X1));  in TSAlpha_StageVecs()
86   PetscCall(VecWAXPY(Xa, -1.0, X0, X1));  in TSAlpha_StageVecs()
87   PetscCall(VecAYPX(Xa, Alpha_f, X0));  in TSAlpha_StageVecs()
118   Vec       X0 = ts->vec_sol, X1, X2 = th->X1;  in TSAlpha_Restart()  local
122   PetscCall(VecDuplicate(X0, &X1));  in TSAlpha_Restart()
135   PetscCall(VecCopy(X0, th->X0));  in TSAlpha_Restart()
137   PetscCall(VecCopy(th->X0, X1));  in TSAlpha_Restart()
145   PetscCall(VecCopy(X1, th->X0));  in TSAlpha_Restart()
147   PetscCall(VecCopy(th->X0, X2));  in TSAlpha_Restart()
155   PetscCall(VecAXPY(th->V0, -3 / time_step, X0));  in TSAlpha_Restart()
164     PetscCall(VecAXPY(th->vec_lte_work, +2, X0));  in TSAlpha_Restart()
173   PetscCall(VecCopy(ts->vec_sol, th->X0));  in TSAlpha_Restart()
190     if (th->vec_sol_prev) PetscCall(VecCopy(th->X0, th->vec_sol_prev));  in TSStep_Alpha()
191     PetscCall(VecCopy(ts->vec_sol, th->X0));  in TSStep_Alpha()
203     PetscCall(VecCopy(th->X0, th->X1));  in TSStep_Alpha()
215       PetscCall(VecCopy(th->X0, ts->vec_sol));  in TSStep_Alpha()
264     vecs[1] = th->X0;  in TSEvaluateWLTE_Alpha()
281   PetscCall(VecWAXPY(th->V1, -1.0, th->X0, ts->vec_sol));  in TSInterpolate_Alpha()
323   PetscCall(VecDestroy(&th->X0));  in TSReset_Alpha()
352   if (!th->X0) PetscCall(VecDuplicate(ts->vec_sol, &th->X0));  in TSSetUp_Alpha()