Workday surges in post-IPO trading debut EARNINGSAMD cuts forecastAdvanced Micro Devices, the second-largest maker of processors for personal computers, cut its third-quarter revenue forecast, citing weak demand across all product lines in a challenging economic environment. AMD joins other makers of computer components suffering fallout from sluggish growth and a shift in consumer tastes toward mobile devices, away from traditional desktop and laptop machines. IPOWorkday surgesWorkday, a Pleasanton maker of Web-based human-resources programs, jumped as much as 78 percent in its trading debut Friday after raising $637 million in its initial public offering, pricing the shares above an increased range. MANAGEMENTAccuray's new CEOJoshua Levine, who oversaw the sales of Mentor Corp. and Immucor Inc., has been named chief executive officer of Accuray Inc., a maker of radiation devices used to treat cancer. ENERGYLand set for solarFederal officials Friday approved a plan that sets aside 285,000 acres of public land for the development of large-scale solar power plants - most of it in California - cementing a new government approach to renewable energy development in the West after years of delays and false starts.