[ExecuTorch][to_backend] Enable passing Delegation Spec to to_backend by mcr229 · Pull Request #8165 · pytorch/executorch

mcr229 · 2025-02-04T00:44:20Z

Stack from ghstack (oldest at bottom):

-> [ExecuTorch][to_backend] Enable passing Delegation Spec to to_backend #8165

Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend.

Motivation

A current usecase for backend lowering is through the to_backend(backend_id, exported_program, compile_spec) API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old to_backend(backend_id, ...) api can not export executorch models with multiple methods.

Design

We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering.

Intended Flow

del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)])
encode_graph = torch.export.export(Encoder(), sample_inputs)
decode_graph = torch.export.export(Decoder(), sample_inputs)
edge_manager = to_edge({
    "encode": encode_graph,
    "decode": decode_graph,
})
lowered_edge_manager = edge_manager.to_backend(del_spec)
# or if you want to specify which methods to lower to with del_spec
lowered_edge_manager= edge_manager.to_backend({
    "encode": del_spec,
})

Differential Revision: D69086565

cc @cccclai

Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) [ghstack-poisoned]

pytorch-bot · 2025-02-04T00:44:23Z

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/8165

📄 Preview Python docs built from this PR

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facebook-github-bot · 2025-02-04T00:44:28Z

This pull request was exported from Phabricator. Differential Revision: D69086565

Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) ghstack-source-id: 264503263 Pull Request resolved: #8165

… to_backend" Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) [ghstack-poisoned]

Pull Request resolved: #8165 This will be used for the backend weight sharing so backends which do entire graph delegation can still share data across methods. Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` ghstack-source-id: 266313740 @exported-using-ghexport Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/)

facebook-github-bot · 2025-02-13T18:49:01Z

This pull request was exported from Phabricator. Differential Revision: D69086565

… to_backend" Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) cc cccclai [ghstack-poisoned]

Pull Request resolved: #8165 This will be used for the backend weight sharing so backends which do entire graph delegation can still share data across methods. Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` ghstack-source-id: 266326224 @exported-using-ghexport Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/)

facebook-github-bot · 2025-02-13T19:29:15Z

This pull request was exported from Phabricator. Differential Revision: D69086565

… to_backend" Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) cc cccclai [ghstack-poisoned]

facebook-github-bot · 2025-02-13T23:21:08Z

This pull request was exported from Phabricator. Differential Revision: D69086565

Pull Request resolved: #8165 This will be used for the backend weight sharing so backends which do entire graph delegation can still share data across methods. Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` ghstack-source-id: 266382004 @exported-using-ghexport Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/)

… to_backend" Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) cc cccclai [ghstack-poisoned]

Pull Request resolved: #8165 This will be used for the backend weight sharing so backends which do entire graph delegation can still share data across methods. Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` ghstack-source-id: 266547681 @exported-using-ghexport Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/)

facebook-github-bot · 2025-02-14T19:21:53Z

This pull request was exported from Phabricator. Differential Revision: D69086565

… to_backend" Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/) cc cccclai [ghstack-poisoned]

facebook-github-bot · 2025-02-14T21:16:40Z

This pull request was exported from Phabricator. Differential Revision: D69086565

Pull Request resolved: #8165 This will be used for the backend weight sharing so backends which do entire graph delegation can still share data across methods. Support Entire Graph Delegation Flow through EdgeProgramManager's to_backend. ### Motivation A current usecase for backend lowering is through the `to_backend(backend_id, exported_program, compile_spec)` API which lowers the entire exported program to the specified backend_id. However, lowering via the EdgeProgramManager only allows for partitioner based lowering. the EdgeProgramManager is the main component which enables support for multiple methods, as a result backends which leverage the old `to_backend(backend_id, ...)` api can not export executorch models with multiple methods. ### Design We override EdgeProgramManager to also allow Partitioner to be replaceable by DelegationSpec. DelegationSpec is essentially a wrapper around the backend_id and the compile_spec, so any where a partitioenr is specified to lower a graph, the delegation spec can also be used to do entier graph lowering. ### Intended Flow ``` del_spec = DelegationSpec("BackendWithCompilerDemo", [CompileSpec(...)]) encode_graph = torch.export.export(Encoder(), sample_inputs) decode_graph = torch.export.export(Decoder(), sample_inputs) edge_manager = to_edge({ "encode": encode_graph, "decode": decode_graph, }) lowered_edge_manager = edge_manager.to_backend(del_spec) # or if you want to specify which methods to lower to with del_spec lowered_edge_manager= edge_manager.to_backend({ "encode": del_spec, }) ``` ghstack-source-id: 266571809 @exported-using-ghexport Differential Revision: [D69086565](https://our.internmc.facebook.com/intern/diff/D69086565/)

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[ExecuTorch][to_backend] Enable passing Delegation Spec to to_backend#8165

[ExecuTorch][to_backend] Enable passing Delegation Spec to to_backend#8165
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