1 / 32

Federation

The latest updates to Federation LAPI and FFTs have led to significant improvements in packet sizes, which have doubled from 936 bytes to 1960 bytes. The incorporation of UDP alongside US protocols, inline completion handlers, new polling functions, and enhanced DGSP with LAPI Utilities have optimized performance. Notable bandwidth and latency statistics show peak on-node bandwidth reaching up to 2800 MB/s and off-node peaks of 230 MB/s. Phase 1 and Phase 2 comparisons between ESSL/PESSL and FFTW are also discussed, providing insights into performance variances.

marek
Télécharger la présentation

Federation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Federation LAPI and FFTs

  2. New LAPI • Packet size has doubled (from 936 bytes to 1960) • Can use UDP as well as US protocols • Inline completion handlers • New polling functions • DGSP and associated LAPI Utils • New data structures • Statistics

  3. Phase 1 Peak on Node: 2800 MB/s Peak off Node: 230 MB/s Get Bandwidth Latency on Node: 2.2e-05 Latency off Node: 9.8e-05 Get Latency

  4. Phase 1 Peak on Node: 2100 MB/s Peak off Node: 230 MB/s Put Bandwidth Latency on Node: 1.4e-05 Latency off Node: 5.5e-05 Put Latency

  5. Peak on Node: 3100 MB/s Peak off Node: 1250 MB/s Latency on Node: 3.1e-06 Latency off Node: 2.3e-05

  6. Latency on Node: 2.1e-06 Latency off Node: 1.3e-05

  7. Latency on Node: 3.9e-06 Latency off Node: 1.0e-05

  8. Peak on Node: 2800 MB/s Peak off Node: 1250 MB/s

  9. Peak on Node: 2900 MB/s Peak off Node: 1230 MB/s

  10. 1.7e-05 1.3e-05

  11. Latency on Node: 9.1e-06 Latency off Node: 3.1e-05

  12. FFTs • Comparing ESSL/PESSL and FFTW

  13. Phase2 Starting ~15usecs Phase1

  14. Phase2 Phase1

  15. Phase2

  16. Phase1

  17. Phase2

  18. Phase1

  19. Phase2

  20. Phase1

More Related