The U.S. Department of Energy’s Lawrence Berkeley National Laboratory will again host a four-day workshop on the DOE Advanced CompuTational Software (ACTS) Collection, a set of software tools aimed at simplifying the solution of common and important computational problems. The workshop, entitled “Enabling Technologies for High End Computer Simulations,” will be held Aug. 24-27 in Berkeley. DOE is sponsoring the workshop, and there is no fee to attend. However, the number of participants is limited and people interested in attending must submit their application by Friday, June 25, 2004. The application can be found at http://acts.nersc.gov/events/Workshop2004/application.html. Developed mainly at DOE national laboratories, the DOE ACTS Collection has substantially benefited a wide range of scientific codes and industrial applications. These benefits include improving the efficiency of scientific research in high performing computing environments and enabling computation that would not have been possible otherwise. “While many scientists are using these tools to advance their work, we realize there are many more researchers who could benefit from using the robust and high performing tools in the ACTS Collection. To raise the visibility of the ACTS Collection, and to provide a forum in which tool developers can get feedback from researchers, DOE sponsors these annual workshops,” said workshop co-organizer Tony Drummond. As part of this outreach to potential users, DOE will sponsor a limited number of graduate students and postdoctoral fellows to participate in the workshop. This support includes round-trip transportation to and from Berkeley, local transportation, lodging, meals and workshop materials. Applications from other research scientists are also encouraged. The four-day workshop will present an introduction to the ACTS Collection for application scientists whose research requires either large amounts of computation, a large volume of data manipulation, the use of robust numerical algorithms, or combinations of these. The workshop will include a range of tutorials on the tools (both those currently available in the collection and some deliverables from the DOE SciDAC program), discussion sessions aimed at solving specific computational needs by the participants, and hands-on practices using high performance computers at the National Energy Research Scientific Computing (NERSC) Center. The workshop will consist of parallel sessions with tutorials grouped by the following topics: * Direct and iterative methods for the solution of linear and non-linear systems of equations * PDEs and multi-level methods * Numerical optimization * Structured and unstructured meshes (generation, manipulation and computation) * Development of high performance computing applications * Performance monitoring and tuning * Software interoperability This workshop is open to computational scientists from industry and academia, with registration costs covered by DOE's Office of Science. For more information on the workshop, please contact Tony Drummond at (510) 486-7624 or Osni Marques at (510) 486-5290. More information about the workshop can be found at http://acts.nersc.gov/events/Workshop2004/ . Berkeley Lab is a U.S. Department of Energy national laboratory located in Berkeley, California. It conducts unclassified scientific research and is managed by the University of California. Visit our website at http://www.lbl.gov .