metadata

license: apache-2.0
tags:
  - jamba
datasets:
  - teknium/OpenHermes-2.5
base_model: ai21labs/Jamba-v0.1
pipeline_tag: text-generation

Jamba-Open-Hermes

This is highly experimental and should be viewed as purely testing right now. Jamba has been very hard to train but I wanted to see how it did on one of the best datasets we have access to. I believe in transparent development so all best working iterations, even if they are a bit wonky, will be pushed here.

New training underway! Thanks to the generous insights provided by lightblue/Jamba-v0.1-chat-multilingual, the new training is going much better. We should hopefully have a decently trained Jamaba-Open-Hermes model for general use and experimentation.

There's been limited testing so no example outputs yet

Training

Open-Hermes-2.0 (Only first 1500 examples): [ 1530/125193 4:46:45 < 386:48:08, 0.09 it/s, Epoch 0.01/1]

Notes:

Tried over 30+ combinations of hyperparameters. Below are the best I could land on.
Loss hovered around ~5-6 no matter what I tried with the learning rate.
Couldn't increase batch size due to Colab limitations, so the answer may lie somewhere in a perfect balance of Lr and Batch Size.

Hyperparameters


lora_config = LoraConfig(
    r=8,
    lora_alpha=16,
    target_modules=["embed_tokens", "x_proj", "in_proj", "out_proj"],
    lora_dropout=0.05,  
    task_type="CAUSAL_LM",
    bias="none"
)

trainer = SFTTrainer(
    model=model,
    train_dataset=train_dataset,
    dataset_text_field="text",
    max_seq_length=max_seq_length,
    tokenizer=tokenizer,
    args=TrainingArguments(
        num_train_epochs=1,
        lr_scheduler_type='cosine',
        learning_rate=0.0002,
        per_device_train_batch_size=1,
        gradient_accumulation_steps=8,
        gradient_checkpointing=True,
        warmup_steps=10,  
        weight_decay=0.01,  
        fp16=not torch.cuda.is_bf16_supported(),
        bf16=torch.cuda.is_bf16_supported(),
        logging_steps=1,  
        save_steps=200, 
        output_dir="outputs",
        optim="adamw_8bit",
        seed=42,
    ),
)