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@INPROCEEDINGS{Baumann:911978,
      author       = {Baumann, Thomas and Götschel, Sebastian and Lunet, Thibaut
                      and Ruprecht, Daniel and Schöbel, Ruth and Speck, Robert},
      title        = {{R}esilience in {S}pectral {D}eferred {C}orrections},
      reportid     = {FZJ-2022-05208},
      year         = {2022},
      abstract     = {Advancement in computational speed is nowadays gained by
                      using more processing units rather than faster ones. Faults
                      in the processing units caused by numerous sources including
                      radiation and aging have been neglected in the past.
                      However, the increasing size of HPC machines makes them more
                      susceptible and it is important to develop a resilience
                      strategy to avoid losing millions of CPU hours.
                      Parallel-in-time methods target the very largest of
                      computers and are hence required to come with
                      algorithm-based fault tolerance. We look here at spectral
                      deferred corrections (SDC), which is a time marching scheme
                      that is at the heart of parallel-in-time methods such as
                      PFASST. Due to its iterative nature, there is ample
                      opportunity to plug in computationally inexpensive fault
                      tolerance schemes, many of which are also easy to implement.
                      We experimentally examine the capability of various
                      strategies to recover from single bit flips both for serial
                      SDC as well as a small-scale parallel-in-time version with
                      diagonal preconditioners.},
      month         = {Jul},
      date          = {2022-07-11},
      organization  = {11th Parallel-in-Time Workshop,
                       Marseilles (France), 11 Jul 2022 - 15
                       Jul 2022},
      subtyp        = {After Call},
      cin          = {JSC},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs)
                      and Research Groups (POF4-511) / DFG project 450829162 -
                      Raum-Zeit-parallele Simulation multimodale Energiesystemen
                      (450829162) / TIME-X - TIME parallelisation: for eXascale
                      computing and beyond (955701)},
      pid          = {G:(DE-HGF)POF4-5112 / G:(GEPRIS)450829162 /
                      G:(EU-Grant)955701},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/911978},
}