TY  - CONF
AU  - Götschel, Sebastian
AU  - Minion, Michael
AU  - Ruprecht, Daniel
AU  - Speck, Robert
TI  - Twelve Ways to Fool the Masses When Giving Parallel-in-Time Results
VL  - 356
CY  - Cham
PB  - Springer International Publishing
M1  - FZJ-2021-03894
SN  - 978-3-030-75932-2 (print)
T2  - Springer Proceedings in Mathematics & Statistics
SP  - 81 - 94
PY  - 2021
AB  - Getting good speedup—let alone high parallel efficiency—for parallel-in-time (PinT) integration examples can be frustratingly difficult. The high complexity and large number of parameters in PinT methods can easily (and unintentionally) lead to numerical experiments that overestimate the algorithm’s performance. In the tradition of Bailey’s article “Twelve ways to fool the masses when giving performance results on parallel computers”, we discuss and demonstrate pitfalls to avoid when evaluating the performance of PinT methods. Despite being written in a light-hearted tone, this paper is intended to raise awareness that there are many ways to unintentionally fool yourself and others and that by avoiding these fallacies more meaningful PinT performance results can be obtained.
T2  - 9th Workshop on Parallel-in-Time Integration
CY  - 8 Jun 2020 - 12 Jun 2020, online (online)
Y2  - 8 Jun 2020 - 12 Jun 2020
M2  - online, online
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
UR  - <Go to ISI:>//WOS:000696174000004
DO  - DOI:10.1007/978-3-030-75933-9_4
UR  - https://juser.fz-juelich.de/record/901886
ER  -