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Interaction and Multiscale Mechanics
  Volume 6, Number 2, June 2013, pages 197-210

Meshfree/GFEM in hardware-efficiency prospective
Rong Tian

Abstract     [Full Text]
    A fundamental trend of processor architecture evolving towards exaflops is fast increasing floating point performance (so-called \"free\" flops) accompanied by much slowly increasing memory and network bandwidth. In order to fully enjoy the \"free\" flops, a numerical algorithm of PDEs should request more flops per byte or increase arithmetic intensity. A meshfree/GFEM approximation can be the class of the algorithm. It is shown in a GFEM without extra dof that the kind of approximation takes advantages of the high performance of manycore GPUs by a high accuracy of approximation; the \"expensive\" method is found to be reversely hardware-efficient on the emerging architecture of manycore.
Key Words
    meshfree; GFEM; manycore; co-design; exascale computing
Rong Tian : Institute of Computing Technology, Chinese Academy of Sciences, Kexueyuan Nanlu 6, Haidian, Beijing 100190, China

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