Preparatory access is intended for testing and developing codes in order to prepare applications for PRACE Tier-0 project access. In particular, we would like to draw your attention to the Preparatory Access Type C which includes code development with support from PRACE experts. Further information is given on the PRACE web page http://www.prace-ri.eu/Call-Announcements The Preparatory Access Call is a rolling call, researchers can apply for resources all year. There are no closing dates, proposals will be reviewed every third month. The next cutoff date is June 1 2012. LRZ invites all interested scientists, whose projects fit the criteria of the PRACE calls to submit their projects. Further information about PRACE calls as well as information on the PRACE machines, can be found at http://www.prace-ri.eu/ If you need some extra information please feel free to contact PRACE directly via peer-review@prace-ri.eu or weinberg@lrz.de This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4297/ Volker Weinberg