 | Friday, January 21, 2005 |
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Friday, January 21 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over 4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West Speaker: H. Park, University of Michigan Title: The Decay sigma+ --> p muon+muon- and Possible New Physics from HyperCP 8:00 p.m. Fermilab Public Lecture Series - Auditorium Detecting Nature's Mysterious Particles: How Particle Physics Detectors Work and What They Really See Speaker: Herman White Tickets: $5
Sunday, January 23
Monday, January 24 |
 Snow Likely 25º/19º
Extended Forecast |
Secon Level 3 |
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Friday, January 21 Cream of Wild Mushroom Soup Blackened Fish Filet Sandwich $4.75 Southern Fried Chicken $3.75 Casserole Florentine with Italian Sausage $3.75 Eggplant Parmesan Panini $4.75 Pizza Supreme $2.75 Baked Potato Bar w/ Chili $4.75
Wilson Hall Cafe Menu |
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GCC Burn-In Test Completed | ||
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When a node burns out, it doesn't fizzle and slowly fade away; nodes go out with a bang, which is why the burn-in testing at the Grid Computing Center (GCC) can identify bad nodes and ensure that the ones that survive the test will last for a long time. "We want to find faulty components or manufacturing defects before we put these systems into where we have to depend on them," said Ken Schumacher of Fermilab's Computing Division, who was tracking the results of the burn-in testing. "So we've been making these things work as hard as we possibly can for 30 days, in order to verify that what we have is acceptable equipment."
Every time the Computing Division makes a large purchase of nodes, it administers this kind of test, which occurs between two and four times a year. This burn-in test started on December 21 at noon, and ended on January 20 at noon, during which time the Farms and Clustered Systems (FACS) Group tested 440 nodes. Two vendors, ASA Computers, Inc. and KOI Computers, supplied the nodes, all of which have extremely similar configurations but aren't quite identical. After the nodes complete the test, they will go to four different computing farms at Fermilab: the DZero re-construction farms, CDF re-construction farms, DZero CAD and CDF CAF.
"The goal of the test is to be able to demonstrate 98% effectiveness," said Schumacher. "We measure the effectiveness by counting every day that every node doesn't work, and compare that to the total number of nodes over the entire test time. We try to get a broken node fixed within one day, or even a few hours. The goal is to have less than 2% of all days of down time."
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Farewell to Mary Morfin After 19 years as a mechanical and electronics technician at Fermilab, Mary Morfin of the Particle Physics Division retires today in order to have time to enjoy the rest of her life as much as she has enjoyed her
Starting in 1986 as a day worker and becoming a full-time employee in 1989, Morfin has contributed to projects in the Accelerator Division, CDF and DZero experiments and the Particle Physics Division. Before she came to Fermilab, she worked at AT&T for nine years as an electronics technician. Morfin said that despite her enthusiasm for working at Fermilab, she is also looking forward to doing a variety of other things. "I'm going to enjoy life," she said. "Spend more time with my family, decorate our house and travel."
A retirement reception will be held for Morfin on Monday, January 24 at Lab 6 from 3:00-5:00 p.m. She also plans to go to the Users Center after work on Monday, and invites people to join her there to celebrate.
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From New Scientist, January 22, 2005 Black holes, but not as we know them They are the most fearsome objects in the universe. They swallow and destroy everything that crosses their path. Everyone knows that falling into a black hole spells doom. Or does it? In the past few years, cracks have started to appear in the conventional picture. Researchers on the quest for a more complete understanding of our universe are finding that black holes are not so black, and perhaps not holes either. Furious debates are raging over what black holes contain and even whether they deserve the name. read more |
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Changes in Regulations for Foreign Visitors Beginning January 26, 2005 Beginning on January 24, 2005, new security procedures will go into effect at Fermilab. They will allow visitors to enter the site without badges, although all visitors and employees must carry identification when on the Fermilab site, for inspection upon request. On January 26, 2005, two days after the new Fermilab security procedures begin, new Department of Energy regulations regarding foreign visitors will also go into effect at Fermilab. The changes in regulations for foreign visitors have these key provisions:
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Herman White Presents Fermilab Public Lecture Tonight The Fermilab Public Lecture Series presents Herman White tonight at 8:00 p.m. in Ramsey Auditorium. White will give the talk, "How Particle Physics Detectors Work and What They Really See." Tickets are $5.00. more information
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