@techreport {icl:613, title = {Reducing the Amount of Pivoting in Symmetric Indefinite Systems}, journal = {University of Tennessee Innovative Computing Laboratory Technical Report}, number = {ICL-UT-11-06}, year = {2011}, month = {2011-05}, publisher = {Submitted to PPAM 2011}, address = {Knoxville, TN}, author = {Dulceneia Becker and Marc Baboulin and Jack Dongarra} }