59   PetscCall(VecDestroy(&lqn->StFprev));  in MatLMVMDQNResetDestructive()
121     if (lqn->StFprev) PetscCall(VecZeroEntries(lqn->StFprev));  in MatReset_LMVMDQN_Internal()
339         PetscScalar *StFprev;  in MatUpdate_LMVMDQN()  local
344         if (!lqn->StFprev) PetscCall(VecDuplicate(lqn->rwork1, &lqn->StFprev));  in MatUpdate_LMVMDQN()
345         PetscCall(VecGetLocalSize(lqn->StFprev, &local_n));  in MatUpdate_LMVMDQN()
346         PetscCall(VecGetArrayAndMemType(lqn->StFprev, &StFprev, &memtype));  in MatUpdate_LMVMDQN()
349             StFprev[idx] = stFprev;  in MatUpdate_LMVMDQN()
352             PetscCall(PetscDeviceRegisterMemory(StFprev, memtype, local_n * sizeof(*StFprev)));  in MatUpdate_LMVMDQN()
353             PetscCall(PetscDeviceArrayCopy(dctx, &StFprev[idx], &stFprev, 1));  in MatUpdate_LMVMDQN()
356         PetscCall(VecRestoreArrayAndMemType(lqn->StFprev, &StFprev));  in MatUpdate_LMVMDQN()
362           PetscCall(VecAXPBY(this_sy_col, -1.0, 0.0, lqn->StFprev));  in MatUpdate_LMVMDQN()
365           PetscCall(MatMultHermitianTransposeColumnRange(Sfull, F, lqn->StFprev, 0, h_new));  in MatUpdate_LMVMDQN()
369           PetscCall(VecAXPY(this_sy_col, 1.0, lqn->StFprev));  in MatUpdate_LMVMDQN()
422       if (!lqn->StFprev) PetscCall(VecDuplicate(lqn->rwork1, &lqn->StFprev));  in MatUpdate_LMVMDQN()
423       PetscCall(MatMultHermitianTransposeColumnRange(Sfull, F, lqn->StFprev, 0, h));  in MatUpdate_LMVMDQN()
489     PetscCall(VecDestroyThenCopy(blqn->StFprev, &mlqn->StFprev));  in MatCopy_LMVMDQN()
782     PetscCall(VecCopy(lbfgs->StFprev, rwork1));  in MatSolve_LMVMDBFGS()