ipu_config.json

{
    "embedding_serialization_factor": 1,
    "recompute_checkpoint_every_layer": true,
    "optimizer_state_offchip": false,
    "replicated_tensor_sharding": true,
    "enable_half_first_order_momentum": true,
    "enable_half_partials": true,

    "device_iterations": 1,
    "inference_device_iterations": 5,
    "replication_factor": {"pod4": 2, "pod8": 4, "pod16": 8, "pod32": 16, "pod64": 32, "default": 2},
    "inference_replication_factor": {"pod4": 2, "pod8": 4, "pod16": 8, "pod32": 16, "pod64": 32, "default": 2},
    "gradient_accumulation_steps": 16,
    "executable_cache_dir": "./exe_cache",

    "ipus_per_replica": 2,
    "layers_per_ipu": [2, 4],
    "matmul_proportion": 0.25
}