Weekly Digest #49

Weekly Dev Blog
2 min readNov 8, 2021

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Articles

How to Train Really Large Models on Many GPUs?

Training Parallelism
- Data Parallelism
- Model Parallelism
- Pipeline Parallelism
- Tensor Parallelism
Mixture-of-Experts (MoE)
Other Memory Saving Designs
- CPU Offloading
- Activation Recomputation
- Mixed Precision Training
- Compression
- Memory Efficient Optimizer

What is an A/B Test?

An A/B test starts with an idea — some change we can make to the UI, the personalization systems that help members find content, the signup flow for new members, or any other part of the Netflix experience that we believe will produce a positive result for our members. Some ideas we test are incremental innovations, like ways to improve the text copy that appears in the Netflix product; some are more ambitious, like the test that led to “Top 10” lists that Netflix now shows in the UI.

How Many People Can Someone Lead?

generally, 5–7 people but depending on

leadership scope (time allocation)

  • People and team
  • Process
  • Technical

leadership roles

  • single team leader
  • leadership in specific areas

experience level of the leader

experience level of the team

level of organisational bureaucracy

Tutorials

Convert SVF to png (10.06MB -> 78KB)

  • Two Layers: SVG (SVGOMG), AVIF/WebP/PNG (Squoosh)

Tools

Open-Meteo weather API

home-assistant

Open source home automation that puts local control and privacy first.

Off-topic

A 3D printed vaccine patch offers vaccination without a shot

Hit the sleep ‘sweet spot’ to keep brain sharp

With 100 participants with a mean age of 75, this experiment shows cognitive scores declined for the groups that slept less than 4.5 or more than 6.5 hours per night

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