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DTSTAMP:20190719T085745Z
LOCATION:HG F 3
DTSTART;TZID=Europe/Stockholm:20190614T133000
DTEND;TZID=Europe/Stockholm:20190614T140000
UID:submissions.pasc-conference.org_PASC19_sess146_msa177@linklings.com
SUMMARY:Enzo-E, an Array-of-Octrees AMR Cosmology Code for the Exascale Er
 a
DESCRIPTION:Minisymposium\nComputer Science and Applied Mathematics, Physi
 cs\n\nEnzo-E, an Array-of-Octrees AMR Cosmology Code for the Exascale Era\
 n\nNorman, Bordner\n\nEnzo-E is an evolution of the Enzo-P/Cello astrophys
 ical simulation framework targeting exascale architectures. Enzo-E impleme
 nts the Enzo community code’s rich suite of physics solvers on an ex
 treme scale AMR software framework called Cello developed concurrently. Ce
 llo implements array-of-octree AMR using the Charm++ parallel object frame
 work, enabling dynamic asynchronous execution which is well suited for gra
 vity-driven structure formation. We report on our progress developing an e
 fficient Poisson solver on array-of-octree meshes. Additionally, Charm++ 6
 .9.0 now supports heterogeneous computing on GPUs through non-interfering 
 CUDA streams. In this talk we report on our preliminary experiences using 
 this capability in the context of cosmological structure formation. Enzo-E
  is partially supported by NSF grant CSSI 1835402.
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