Is there some documentation about vmfb file?

[FlintWangacc]

Is there some documentation about vmfb format? I want to know how iree structure object files. Where is the code? Where is the weight from neural network? Is there any documentation dictate this? Is there any code can help us understanding the internal?

[ScottTodd]

We could use better docs on the file types used. For now, here are some links:

• .vmfb flatbuffer schema definition file: https://github.com/iree-org/iree/blob/main/runtime/src/iree/schemas/bytecode_module_def.fbs
• Tool to print the contents of a .vmfb: https://iree.dev/developers/general/developer-overview/#iree-dump-module (source here: https://github.com/iree-org/iree/blob/main/tools/iree-dump-module-main.c)
• Model weights can be in the .vmfb file or they can be externalized into a parameter file (.irpa, .safetensors, .gguf): https://iree.dev/guides/parameters/
• More information about the VM (virtual machine): https://iree.dev/developers/design-docs/vm/