How to reduce CPU memory consumption?

[playerkk]

With 32 MultiHouseEnv running in parallel, it consumes ~200G CPU memory. Which part costs most of the memory? Any suggestions of how to reduce the memory consumption? Thanks.

[ppwwyyxx]

We have a coming version that puts a lot of the processing into C++ to save memory. However I remember that the current memory cost should be about 1G per house.

It may be related to the use of MultiHouseEnv -- it caches all the houses it has loaded so far. Using multiple instances of the single house Environment should save the memory.

Note that to use multiple instances of Environment you'll need to create multiple RenderAPI. See the recently added section in docs: https://github.com/facebookresearch/House3D/blob/master/INSTRUCTION.md#concurrency-issues

[playerkk]

In my current implementation, I naively keep an instance of MultiHouseEnv in each agent (process), which costs a lot of memory. Thanks for sharing the trick of using Environment.

Also look forward to the updated version.

[playerkk]

Will the updated version be available soon? Thanks.