26     if (!shell->right_work) PetscCall(MatCreateVecs(A, &shell->right_work, NULL));  in MatShellPreZeroRight()
27     PetscCall(VecCopy(x, shell->right_work));  in MatShellPreZeroRight()
28     PetscCall(VecISSet(shell->right_work, shell->zcols, 0.0));  in MatShellPreZeroRight()
29     *xx = shell->right_work;  in MatShellPreZeroRight()
130     if (!shell->right_work) PetscCall(VecDuplicate(shell->right, &shell->right_work));  in MatShellPreScaleRight()
131     PetscCall(VecPointwiseMult(shell->right_work, x, shell->right));  in MatShellPreScaleRight()
132     *xx = shell->right_work;  in MatShellPreScaleRight()
447   PetscCall(VecDestroy(&shell->right_work));  in MatDestroy_Shell()
622           if (!shell->right_work) PetscCall(MatCreateVecs(A, &shell->right_work, NULL));  in MatProductNumeric_Shell_X()
624             PetscCall(VecCopy(shell->dshift, shell->right_work));  in MatProductNumeric_Shell_X()
625             PetscCall(VecShift(shell->right_work, shell->vshift));  in MatProductNumeric_Shell_X()
626             PetscCall(VecPointwiseMult(shell->right_work, shell->right_work, shell->right));  in MatProductNumeric_Shell_X()
628             PetscCall(VecSet(shell->right_work, shell->vshift));  in MatProductNumeric_Shell_X()
630           PetscCall(MatDiagonalScale(mdata->B, shell->right_work, NULL));  in MatProductNumeric_Shell_X()
1236 …if (!shell->right_work) PetscCall(VecDuplicate(shell->left ? shell->left : shell->right, &shell->r…  in MatDiagonalSet_Shell_Private()
1238       PetscCall(VecPointwiseDivide(shell->right_work, D, shell->left));  in MatDiagonalSet_Shell_Private()
1239       PetscCall(VecPointwiseDivide(shell->right_work, shell->right_work, shell->right));  in MatDiagonalSet_Shell_Private()
1241       PetscCall(VecPointwiseDivide(shell->right_work, D, shell->left));  in MatDiagonalSet_Shell_Private()
1243       PetscCall(VecPointwiseDivide(shell->right_work, D, shell->right));  in MatDiagonalSet_Shell_Private()
1245     PetscCall(VecAXPY(shell->dshift, s, shell->right_work));  in MatDiagonalSet_Shell_Private()