%0 Generic %1 Clark2008 %A Clark, M. A. %A Brannick, J. %A Brower, R. C. %A McCormick, S. F. %A Manteuffel, T. A. %A Osborn, J. C. %A Rebbi, C. %D 2008 %K Algorithm HMC %T The removal of critical slowing down %U http://arxiv.org/abs/0811.4331 %X We present promising initial results of our adaptive multigrid solver developed for application directly to the non-Hermitian Wilson-Dirac system in 4 dimensions, as opposed to the solver developed in 1 for the corresponding normal equations. The key behind the success of this algorithm is the use of an adaptive projection onto coarse grids that preserves the near null space of the system matrix. We demonstrate that the resulting algorithm has weak dependence on the gauge coupling and exhibits extremely mild critical slowing down in the chiral limit.

@misc{Clark2008, abstract = { We present promising initial results of our adaptive multigrid solver developed for application directly to the non-Hermitian Wilson-Dirac system in 4 dimensions, as opposed to the solver developed in [1] for the corresponding normal equations. The key behind the success of this algorithm is the use of an adaptive projection onto coarse grids that preserves the near null space of the system matrix. We demonstrate that the resulting algorithm has weak dependence on the gauge coupling and exhibits extremely mild critical slowing down in the chiral limit. }, added-at = {2009-08-28T11:34:39.000+0200}, author = {Clark, M. A. and Brannick, J. and Brower, R. C. and McCormick, S. F. and Manteuffel, T. A. and Osborn, J. C. and Rebbi, C.}, biburl = {https://www.bibsonomy.org/bibtex/2abef82b5f6918dd43720959bd85daf45/gber}, description = {[0811.4331] The removal of critical slowing down}, interhash = {9195a32868bff0739e3ef5c8e0ef619d}, intrahash = {abef82b5f6918dd43720959bd85daf45}, keywords = {Algorithm HMC}, note = {cite arxiv:0811.4331 Comment: 7 pages, talk given at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg, VA, USA}, timestamp = {2009-08-28T11:34:39.000+0200}, title = {The removal of critical slowing down}, url = {http://arxiv.org/abs/0811.4331}, year = 2008 }