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Model: CarperAI/pythia-2.8b-deduped-4k Source: Original Platform
2026-04-10 22:52:54 +08:00
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+---
+license: apache-2.0
+datasets:
+- EleutherAI/the_pile_deduplicated
+language:
+- en
+---
+
+Pythia-2.8B Deduped 4K is a [Pythia-2.8B Deduped](https://huggingface.co/EleutherAI/pythia-2.8b-deduped) model fine-tuned with a 4096 context length.
+Training resumed from their 143,000 step checkpoint and continued on The Pile v1 Deduped (threshold=0.87).
+This particular model is from a checkpoint captured at step 175,500 for an extra 134,217,728,000 tokens of training.
+
+Note: Sequence length warmup was not used to move up from 2048 but, in hindsight, should have been applied.
+
+
+## Config
+
+```yaml
+{
+  # 8 Nodes 8xA100 40GB
+  "eval_batch_size": 2,
+
+  "pipe-parallel-size": 1,
+  "model-parallel-size": 1,
+
+  "num-layers": 32,
+  "hidden-size": 2560,
+  "num-attention-heads": 32,
+  "seq-length": 4096,
+  "max-position-embeddings": 4096,
+
+  "norm": "layernorm",
+  "pos-emb": "rotary",
+  "rotary-pct": 0.25,
+  "no-weight-tying": true,
+  "gpt-j-residual": true,
+  "output-layer-parallelism": "column",
+
+  "init_method": "small_init",
+  "output_layer_init_method": "wang_init",
+  
+  "attention-config": [[["flash"], 32]],
+  "scaled-upper-triang-masked-softmax-fusion": true,
+  "bias-gelu-fusion": true,
+
+  "optimizer": {
+    "type": "Adam",
+    "params": {
+      "lr": 1.6e-5,
+      "betas": [0.9, 0.95],
+      "eps": 1.0e-08
+    },
+  },
+  "min_lr": 8.0e-06,
+
+  "zero_optimization":{
+      "stage": 1,
+      "allgather_partitions": true,
+      "allgather_bucket_size": 500000000,
+      "overlap_comm": true,
+      "reduce_scatter": true,
+      "reduce_bucket_size": 500000000,
+      "contiguous_gradients": true,
+      "cpu_offload": false,
+  },
+  "train_micro_batch_size_per_gpu": 4,
+  "gradient-accumulation-steps": 4,
+  "data-impl": "mmap",
+
+  "checkpoint-activations": true,
+  "checkpoint-num-layers": 1,
+  "partition-activations": true,
+  "synchronize-each-layer": true,
+
+  "gradient_clipping": 1.0,
+  "weight-decay": 0.1,
+  "hidden-dropout": 0,
+  "attention-dropout": 0,
+
+  "fp16": {
+      "fp16": true,
+      "enabled": true,
+      "loss_scale": 0,
+      "loss_scale_window": 1000,
+      "initial_scale_power": 12,
+      "hysteresis": 2,
+      "min_loss_scale": 1,
+  },
+
+  "train-iters": 318000, 
+  "lr-decay-iters": 318000,
+  "distributed-backend": "nccl",
+  "lr-decay-style": "cosine",
+  "warmup": 0.01,
+  "checkpoint-factor": 500,
+  "eval-interval": 50000,
+  "eval-iters": 10,
+  "extra-save-iters": [0, 512, 152001],
+
+  "train-data-paths": ["pile_0.87_deduped_text_document"],
+  "valid-data-paths": ["pile_0.87_deduped_text_document"],
+  "test-data-paths": ["pile_0.87_deduped_text_document"],
+
+  "tokenizer_type": "HFTokenizer",
+  "vocab-file": "20B_tokenizer.json",
+
+  "log-interval": 10,
+  "steps_per_print": 10,
+  "wall_clock_breakdown": true,
+  "log-grad-norm": true,
+
+  "launcher": "slurm",
+  "deepspeed_slurm": true,
+}
+```
+
+## Acknoweldgements
+
+This work would not have been possible without the support of [Stability AI](https://stability.ai/).