@TechReport{LBNL-5692E, author = {Gunther H. Weber and Peer-Timo Bremer}, title = {{In-situ Analysis: Challenges and Opportunities}}, institution={Lawrence Berkeley National Laboratory}, address = {Berkeley, CA, USA, 94720}, month = apr, year={2012}, number={LBNL-5692E}, note = {Position paper for DOE Exascale Research Conference in Portland, OR.} }