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@ARTICLE{Christou:823862,
      author       = {Christou, Michalis and Christoudias, Theodoros and Morillo,
                      Julián and Alvarez, Damian and Merx, Hendrik},
      title        = {{E}arth system modelling on system-level heterogeneous
                      architectures: {EMAC} (version 2.42) on the {D}ynamical
                      {E}xascale {E}ntry {P}latform ({DEEP})},
      journal      = {Geoscientific model development},
      volume       = {9},
      number       = {9},
      issn         = {1991-9603},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2016-06502},
      pages        = {3483 - 3491},
      year         = {2016},
      abstract     = {We examine an alternative approach to heterogeneous
                      cluster-computing in the many-core era for Earth system
                      models, using the European Centre for Medium-Range Weather
                      Forecasts Hamburg (ECHAM)/Modular Earth Submodel System
                      (MESSy) Atmospheric Chemistry (EMAC) model as a pilot
                      application on the Dynamical Exascale Entry Platform (DEEP).
                      A set of autonomous coprocessors interconnected together,
                      called Booster, complements a conventional HPC Cluster and
                      increases its computing performance, offering extra
                      flexibility to expose multiple levels of parallelism and
                      achieve better scalability. The EMAC model atmospheric
                      chemistry code (Module Efficiently Calculating the Chemistry
                      of the Atmosphere (MECCA)) was taskified with an offload
                      mechanism implemented using OmpSs directives. The model was
                      ported to the MareNostrum 3 supercomputer to allow testing
                      with Intel Xeon Phi accelerators on a production-size
                      machine. The changes proposed in this paper are expected to
                      contribute to the eventual adoption of Cluster–Booster
                      division and Many Integrated Core (MIC) accelerated
                      architectures in presently available implementations of
                      Earth system models, towards exploiting the potential of a
                      fully Exascale-capable platform.},
      cin          = {JSC},
      ddc          = {910},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {513 - Supercomputer Facility (POF3-513) / DEEP - Dynamical
                      Exascale Entry Platform (287530)},
      pid          = {G:(DE-HGF)POF3-513 / G:(EU-Grant)287530},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000385386000001},
      doi          = {10.5194/gmd-9-3483-2016},
      url          = {https://juser.fz-juelich.de/record/823862},
}