TY - GEN
T1 - Performance analysis of a cardiac simulation code using IPM
AU - Strazdins, Peter
AU - Hegland, Markus
PY - 2011
Y1 - 2011
N2 - This paper details our experiences in performing a detailed performance analysis on a large-scale parallel cardiac simulation by the Chaste software on an Nehalem and Infiniband-based cluster. Our methodology achieves good accuracy for relatively modest amounts of cluster time. The use of sections in the Chaste internal profiler, coupled with the IPM tool, enabled some detailed insights into the performance and scalability of the application. For large core counts, our analysis showed that performance was no longer dominated by the linear systems solver. The computationally-intensive components scaled well up to 2048 cores, and poorly scaling and highly imbalanced components associated with program output and miscellaneous functions were limiting scalability.
AB - This paper details our experiences in performing a detailed performance analysis on a large-scale parallel cardiac simulation by the Chaste software on an Nehalem and Infiniband-based cluster. Our methodology achieves good accuracy for relatively modest amounts of cluster time. The use of sections in the Chaste internal profiler, coupled with the IPM tool, enabled some detailed insights into the performance and scalability of the application. For large core counts, our analysis showed that performance was no longer dominated by the linear systems solver. The computationally-intensive components scaled well up to 2048 cores, and poorly scaling and highly imbalanced components associated with program output and miscellaneous functions were limiting scalability.
KW - cardiac modelling
KW - high performance computing
KW - performance evaluation
UR - http://www.scopus.com/inward/record.url?scp=84857570231&partnerID=8YFLogxK
U2 - 10.1145/2133173.2133186
DO - 10.1145/2133173.2133186
M3 - Conference contribution
SN - 9781450311809
T3 - ScalA'11 - Proceedings of the 2011 ACM Workshop on Scalable Algorithms for Large-Scale Systems, Co-located with SC'11
SP - 29
EP - 32
BT - ScalA'11 - Proceedings of the 2011 ACM Workshop on Scalable Algorithms for Large-Scale Systems, Co-located with SC'11
T2 - 2011 ACM Workshop on Scalable Algorithms for Large-Scale Systems, ScalA'11, Co-located with SC'11
Y2 - 14 November 2011 through 14 November 2011
ER -