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  Preconditioner that works to 512 cores and falls apart at 1024

  Strong scaling is close to ideal up to 512 ranks. At 1024 the iteration count roughly doubles and the wall time goes up. The partitioning is the same algorithm at both sizes and the subdomains are…

  • hpc
  • numerics

  Arun Balakrishnan

✳每一道问题，都是一次共同思考的邀请。