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Quarto GHA Workflow Runner
2025-07-19 18:00:00 +00:00
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@@ -1479,7 +1479,7 @@
"href": "docs/multi-gpu.html#sec-fsdp",
"title": "Multi-GPU",
"section": "3 Fully Sharded Data Parallel (FSDP)",
"text": "3 Fully Sharded Data Parallel (FSDP)\n\n\n\n\n\n\nNote\n\n\n\nFSDP2 is recommended for new users. FSDP1 is deprecated and will be removed in an upcoming release of Axolotl.\n\n\n\n3.1 Migrating from FSDP1 to FSDP2\nTo migrate your config from FSDP1 to FSDP2, you must use the fsdp_version top-level config field to specify the FSDP version, and\nalso follow the config field mapping below to update field names.\n\n3.1.1 Config mapping\n\n\n\nFSDP1\nFSDP2\n\n\n\n\nfsdp_sharding_strategy\nreshard_after_forward\n\n\nfsdp_backward_prefetch_policy\nREMOVED\n\n\nfsdp_backward_prefetch\nREMOVED\n\n\nfsdp_forward_prefetch\nREMOVED\n\n\nfsdp_sync_module_states\nREMOVED\n\n\nfsdp_cpu_ram_efficient_loading\ncpu_ram_efficient_loading\n\n\nfsdp_state_dict_type\nstate_dict_type\n\n\nfsdp_use_orig_params\nREMOVED\n\n\n\nFor example, if you were using the following FSDP1 config:\nfsdp_version: 1\nfsdp_config:\n fsdp_offload_params: false\n fsdp_cpu_ram_efficient_loading: true\n fsdp_auto_wrap_policy: TRANSFORMER_BASED_WRAP\n fsdp_transformer_layer_cls_to_wrap: Qwen3DecoderLayer\n fsdp_state_dict_type: FULL_STATE_DICT\n fsdp_sharding_strategy: FULL_SHARD\nYou can migrate to the following FSDP2 config:\nfsdp_version: 2\nfsdp_config:\n offload_params: false\n cpu_ram_efficient_loading: true\n auto_wrap_policy: TRANSFORMER_BASED_WRAP\n transformer_layer_cls_to_wrap: Qwen3DecoderLayer\n state_dict_type: FULL_STATE_DICT\n reshard_after_forward: true\n\n\n\n3.2 FSDP1 (deprecated)\n\n\n\n\n\n\nNote\n\n\n\nUsing fsdp to configure FSDP is deprecated and will be removed in an upcoming release of Axolotl. Please use fsdp_config as above instead.\n\n\nfsdp:\n - full_shard\n - auto_wrap\nfsdp_config:\n fsdp_offload_params: true\n fsdp_state_dict_type: FULL_STATE_DICT\n fsdp_transformer_layer_cls_to_wrap: LlamaDecoderLayer",
"text": "3 Fully Sharded Data Parallel (FSDP)\n\n\n\n\n\n\nNote\n\n\n\nFSDP2 is recommended for new users. FSDP1 is deprecated and will be removed in an upcoming release of Axolotl.\n\n\n\n3.1 Migrating from FSDP1 to FSDP2\nTo migrate your config from FSDP1 to FSDP2, you must use the fsdp_version top-level config field to specify the FSDP version, and\nalso follow the config field mapping below to update field names.\n\n3.1.1 Config mapping\n\n\n\nFSDP1\nFSDP2\n\n\n\n\nfsdp_sharding_strategy\nreshard_after_forward\n\n\nfsdp_backward_prefetch_policy\nREMOVED\n\n\nfsdp_backward_prefetch\nREMOVED\n\n\nfsdp_forward_prefetch\nREMOVED\n\n\nfsdp_sync_module_states\nREMOVED\n\n\nfsdp_cpu_ram_efficient_loading\ncpu_ram_efficient_loading\n\n\nfsdp_state_dict_type\nstate_dict_type\n\n\nfsdp_use_orig_params\nREMOVED\n\n\n\nFor more details, please see the migration guide in the torchtitan repo. In Axolotl,\nif you were using the following FSDP1 config:\nfsdp_version: 1\nfsdp_config:\n fsdp_offload_params: false\n fsdp_cpu_ram_efficient_loading: true\n fsdp_auto_wrap_policy: TRANSFORMER_BASED_WRAP\n fsdp_transformer_layer_cls_to_wrap: Qwen3DecoderLayer\n fsdp_state_dict_type: FULL_STATE_DICT\n fsdp_sharding_strategy: FULL_SHARD\nYou can migrate to the following FSDP2 config:\nfsdp_version: 2\nfsdp_config:\n offload_params: false\n cpu_ram_efficient_loading: true\n auto_wrap_policy: TRANSFORMER_BASED_WRAP\n transformer_layer_cls_to_wrap: Qwen3DecoderLayer\n state_dict_type: FULL_STATE_DICT\n reshard_after_forward: true\n\n\n\n3.2 FSDP1 (deprecated)\n\n\n\n\n\n\nNote\n\n\n\nUsing fsdp to configure FSDP is deprecated and will be removed in an upcoming release of Axolotl. Please use fsdp_config as above instead.\n\n\nfsdp:\n - full_shard\n - auto_wrap\nfsdp_config:\n fsdp_offload_params: true\n fsdp_state_dict_type: FULL_STATE_DICT\n fsdp_transformer_layer_cls_to_wrap: LlamaDecoderLayer",
"crumbs": [
"Deployments",
"Multi-GPU"