Leading Computational Methods on Scalar and Vector HEC Platforms Session: High End Computing Applications Event Type: Paper Time: 4:30pm - 5:00pm Session Chair: Esmond G Ng Speaker(s): Leonid Oliker, Jonathan Carter, Michael Wehner, Andrew Canning, Stephane Ethier, Bala Govindasamy, Art Mirin, David Parks, Pat Worley, Shigemune Kitawaki, Yoshinori Tsuda Location: 606-607 Abstract: The last decade has witnessed a rapid proliferation of superscalar cache-based microprocessors to build high-end computing (HEC) platforms. However, the growing gap between sustained and peak performance for full-scale scientific applications on conventional supercomputers has become major concern in high performance computing. In this work we explore four applications from leading scientific domains in the areas of atmospheric modeling (FVCAM), magnetic fusion (GTC), plasma physics (LBMHD3D), and material science (PARATEC). We compare performance between vector-based architectures with leading commodity-based superscalar platforms. Overall results show that the vector architectures attain unprecedented aggregate performance across our evaluated application suite, demonstrating the tremendous potential of modern parallel vector systems. This paper can be found in the ACM and IEEE Digital Libaries Click here for ACM Click here for IEEE Chair/Speaker Details: Esmond G Ng (Chair) Lawrence Berkeley National Laboratory Leonid Oliker LBNL Jonathan Carter LBNL Michael Wehner LBNL Andrew Canning LBNL Stephane Ethier PPPL Bala Govindasamy LLNL Art Mirin LLNL David Parks NEC Solutions America Pat Worley ORNL Shigemune Kitawaki JAMSTEC Yoshinori Tsuda JAMSTEC