[ET-VK] Introduce DynamicDispatchNode
#11000
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Pull Request resolved: #10978 ## Context Add a test where `encode_execute()` is called again after resizing model inputs and propagating the new sizes. Currently, dynamic shapes are handled by simply updating the tensor metadata when sizes are updated. Compute shaders will perform the same computations with the updated tensor sizes/strides information. However, for some operators, different input sizes require different compute shaders in order to achieve maximum performance. One example of this is for matrix multiplication, where matrix-matrix multiplication typically uses a different algorithm than vector-matrix (or matrix-vector) multiplication. Therefore, for some models, it would be best to trigger a re-encoding of the command buffer upon input resize, so that different compute shaders can be selected based on the current input sizes. The actual changes for enabling shader re-selection will be introduced in the next diff. This diff simply checks that command buffer re-encoding "works as advertised". ## Changes This diff simply adds a test in `vulkan_compute_api_test` to test whether the ComputeGraph API can handle the `encode_execute` function being called multiple times. ghstack-source-id: 285093287 @exported-using-ghexport Differential Revision: [D75013781](https://our.internmc.facebook.com/intern/diff/D75013781/)
Pull Request resolved: #10979 ## Context The `DynamicDispatchNode` class in introduced in this diff to allow for shader re-selection upon input resize. See the previous diff in the stack for more context on why this functionality is needed. ghstack-source-id: 285093290 @exported-using-ghexport Differential Revision: [D75013780](https://our.internmc.facebook.com/intern/diff/D75013780/)
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/11000
Note: Links to docs will display an error until the docs builds have been completed. ❌ 1 New FailureAs of commit 38c44cc with merge base 7d194cf ( NEW FAILURE - The following job has failed:
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This PR was created by the merge bot to help merge the original PR into the main branch.
ghstack PR number: #10979 by @SS-JIA
^ Please use this as the source of truth for the PR details, comments, and reviews
ghstack PR base: https://github.com/pytorch/executorch/tree/gh/SS-JIA/227/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/227/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/gh/SS-JIA/226/orig
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/227/orig
@diff-train-skip-merge