This morning there was an issue with the Helium cluster. You may have received an error message when submitting a job. An error on the system caused a disk to become full. We have identified the problem and fixed it. We are also taking steps to prevent the problem from recuring. We apologize for the inconvenience.
Update at 10:30 am:
In the time since I sent out the previous message, we have received e-mails from two users indicating that they could submit jobs but the jobs were not running. If you are having that problem, we want to let you know that we are currently investigating it. Again, we apologize for the inconvenience and appreciate your patience.