~/talk

Primus: Unified Training System for Large-Scale Deep Learning Recommendation Models

Talkat USENIX ATC '25 · 2025-07-07..07-09· [machine-learning, data-engineering]
name:Jixi Shan
links:none on file
links:none on file
links:none on file
links:none on file
links:none on file
name:Can Wang
links:none on file
name:Jun Song
links:none on file
name:Rui Shi
links:none on file
links:none on file
links:none on file
name:Shiru Ren
links:none on file
links:none on file
name:Hua Huang
links:none on file
name:Lele Yu
links:none on file
name:Peng Xu
links:none on file
links:none on file
slides:none on file

Primus implements a unified resource controller that standardizes YARN and Kubernetes semantics, runs dynamic horizontal+vertical scaling across multi‑cluster pools, and cuts cluster training cost by 17.1% at cluster level while raising CPU utilization 50%→80% per job. A three‑tier data definition plus a Data Task Graph generator handles HDFS/FStore, Kafka, Iceberg/Hoodie sources and yields 23× faster task generation and higher throughput versus Flink. The hybrid MTRM training paradigm mixes batch replay and stream priority, producing a 0.4%–2.4% advertising revenue lift in production.

AI-written summary · about

  1. 0:00Primus training system
  2. 1:26Large-scale DRM training challenges
  3. 5:00Three key solutions
  4. 6:07Traditional vs Primus architecture
  5. 7:32Unified resource scheduling
  6. 8:16Unified data orchestration
  7. 9:21Unified MTRM training
  8. 10:25Dynamic scaling evaluation
  9. 12:57Data generation performance
  10. 14:20MTRM results and revenue
  11. 15:22Implementation lessons
  12. 16:04Summary and future
~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.