The last row of the nightly tests is intended to test the combinations of configure options by selecting random combinations and building with them. These require a few minutes of review (since some things cause failures and are too much work to make fail cleanly) and must be reviewed each day (every test, even on the same day, is different), but can help catch problems before the release push. The test code does need to be updated to know what are the valid configure options, but with that done, this test can help discover problems before the release push. Bill William Gropp Deputy Director for Research Institute for Advanced Computing Applications and Technologies Paul and Cynthia Saylor Professor of Computer Science University of Illinois Urbana-Champaign