469     } else if (snes->mf && !snes->mf_operator) {  in SNESView()
767   if (!snes->jacobian && snes->mf && !snes->mf_operator && !snes->jacobian_pre) {  in SNESSetUpMatrices()
1120     snes->mf          = PETSC_TRUE;  in SNESSetFromOptions()
1123 …o matrix for computing the preconditioner", "SNESSetUseMatrixFree", PETSC_FALSE, &snes->mf, &flg));  in SNESSetFromOptions()
1124   if (!flg && snes->mf_operator) snes->mf = PETSC_TRUE;  in SNESSetFromOptions()
1328 PetscErrorCode SNESSetUseMatrixFree(SNES snes, PetscBool mf_operator, PetscBool mf)  in SNESSetUseMatrixFree()  argument
1333   PetscValidLogicalCollectiveBool(snes, mf, 3);  in SNESSetUseMatrixFree()
1334   snes->mf          = mf_operator ? PETSC_TRUE : mf;  in SNESSetUseMatrixFree()
1355 PetscErrorCode SNESGetUseMatrixFree(SNES snes, PetscBool *mf_operator, PetscBool *mf)  in SNESGetUseMatrixFree()  argument
1359   if (mf) *mf = snes->mf;  in SNESGetUseMatrixFree()
1883   snes->mf          = PETSC_FALSE;  in SNESCreate()
3350   PetscBool      mf_operator, mf;  in SNESSetUp()  local
3382   PetscCall(SNESGetUseMatrixFree(snes, &mf_operator, &mf));  in SNESSetUp()
3384     snes->mf          = PETSC_TRUE;  in SNESSetUp()
3400     PetscCall(SNESSetUseMatrixFree(snes->npc, mf_operator, mf));  in SNESSetUp()
3426   if (snes->mf) PetscCall(SNESSetUpMatrixFree_Private(snes, snes->mf_operator, snes->mf_version));  in SNESSetUp()