Optimization of All-to-All Communication on the Blue Gene/L Supercomputer

@article{Kumar2008OptimizationOA,
  title={Optimization of All-to-All Communication on the Blue Gene/L Supercomputer},
  author={Sameer Kumar and Yogish Sabharwal and Rahul Garg and Philip Heidelberger},
  journal={2008 37th International Conference on Parallel Processing},
  year={2008},
  pages={320-329}
}

• Sameer Kumar, Yogish Sabharwal, +1 author Philip Heidelberger
• Published in
  37th International Conference on Parallel…
  2008
• DOI:10.1109/ICPP.2008.83

All-to-all communication is a well known performance bottleneck for many applications, such as the ones that use the Fast-Fourier-transform (FFT) algorithm. We analyze the performance of all-to-all communication on the BlueGene/L torus interconnect that has link contention even for all-to-all operations with short messages. We observed that the performance of all-to-all depends on the shape of the processor partition. We present a performance analysis of all-to-all on partitions of various… CONTINUE READING

Save to Library

Create Alert

Cite

View on IEEE