iPCA hangs

[jdrusso]

• msm_we version: 0.27
• Python version: 3.9.13
• Operating System: Ubuntu 20.04

iPCA/PCA occasionally hangs indefinitely during model-building

[jdrusso]

Implemented batch-PCA in 2c1dbe6... Not really an ideal solution to eliminate streaming, but it works.

[jdrusso]

Addressed by 2202aaa . This isn't a perfect solution, but it's a start

At its core, this issue comes from sklearn oversubscribing threads. I can't find any other way to specify the number of threads to it automatically. Ideally, it should match the number of RAY workers