Large-scale projects and highly scalable parallel applications are characterised by large computing time requirements, not only for short time frames, but often for longer time periods. The GCS member sites will guarantee that large-scale projects can fully utilise the assigned resources, if necessary at the expense of normal or smaller projects. Projects are classified as Large-Scale , if they require more than 5% of the potentially available CPU cycles on a member centre s high-end system, i.e. more than 70 Mill. CPU-hours at JSC (corresponding to 24 rack months IBM BG/P) more than 4 Mill. CPU-hours at LRZ (SGI Altix 4700) For these large-scale projects a competitive review and resource allocation process is established by the GCS. Requests for resources below these limits will be accepted by the individual member centres. Requests above these limits will be handed over to GCS, handled according to the joint procedures, and will be reviewed in the national context. Projects of smaller scale will be still handled by the local GCS member site. A "Call for Large-Scale Projects" is published by the Gauss Centre twice a year. Dates for closure of calls are usually at the end of February and at the end of August of each year. The deadline for this particular call is February 28th 2011. Eligible are applications from publicly funded academic and research institutions, e.g., universities, Max-Planck Society, and Helmholtz Association. For Details see: http://www.gauss-centre.eu/computing-time/call For other HPC calls see: http://www.lrz.de/services/compute/hlrb/ calls/ This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali3939/ Matthias Brehm