Comments (2)
RLHF requires creating multiple models like SFT, RM, PPO-tuned model. Is it possible to improve storage and memory efficiency, reduce computation if we freeze some huge layers of the pretrained model, only fine-tune certain layers to create SFT, RM, PPO using OpenDelta or other libraries/methods? I read that your repo is using LoRA but I'm not sure if it fulfills all goals described above. Common implementations like minRLHF requires four separate models, three are derived from the pretrained model as actor, critic and reference, in addition to an external sentiment rating model.
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To address this proposal even further, I think a good reward function can self-evolve and adapt to new environments (when the data source is no longer fixed static "archives" but streaming), making this model communicative, multipurpose, realtime and even into AGI. A good reward function can let the agent to learn from almost anything, including human feedback, computer system (sensor data, terminal/GUI input/output, internet, program threads and more) and self-invented signals. WebGPT is a clear example to make GPT3 into an active agent. There will be more to come.
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Related Issues (20)
- Value function
- Can not train the model using PyTorch version 2? HOT 1
- train your reward model issue HOT 1
- KL divergence loss HOT 1
- mask raised error HOT 2
- Confusion about KL divergence calculation for human feedback policies HOT 13
- Reason for using pooled critic embedding instead of the last embedding for value head HOT 3
- Calculating the kl loss seems has a mistake. HOT 1
- Column and Row Parallel Linear for Apex Tensor Parallel HOT 1
- i use other params with palm, but got error HOT 4
- norm.gamma not used during backprop HOT 2
- speed up with flash attn in A6000? HOT 2
- memory-efficient attention is default opened? if i dont use flash attn HOT 3
- Model Name HOT 3
- I looked at the llama source code and there is an intermedie layer
- Flash Attention 2
- Possible incorrect creation of Rotary Embeddinigs HOT 1
- Should critic's input be prompt only?
- How to use lora?
- Is there any documentation to train this on my own data ?
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