pytorch/executorch
Oct 2024 – Mar 2026
17 Months active
Languages Used
PythonC++C
Technical Skills
PyTorchdeep learningtensor manipulationC++ developmenterror handlinglogging
Hardik Sharma
PROFILE
Hardik Sharma
Hardik Sharma contributed to the pytorch/executorch repository by engineering robust backend features and optimizations for deep learning workflows. Over 17 months, he delivered enhancements such as memory planning frameworks, quantization robustness, and advanced graph construction, using C++, Python, and PyTorch. His work included implementing cross-platform build support, in-place tensor operations, and hierarchical graph optimization passes, addressing both performance and maintainability. Hardik improved error handling, numerical correctness, and test infrastructure, enabling more reliable model export and execution. His technical depth is reflected in solutions for memory management, kernel programming, and quantized neural networks, consistently reducing technical debt and deployment friction.
Overall Statistics
Feature vs Bugs
77%Features
Repository Contributions
69Total
Bugs
12
Commits
69
Features
40
Lines of code
17,555
Activity Months17
Your Network
3025 peopleSame Organization
@meta.com2690
Peter RongMember
Zain RizviMember
Aahan AggarwalMember
Aliaksei AndreyeuMember
Arjun ChaturvediMember
Aaron PollackMember
Aaryaman SagarMember
Aashay GaikwadMember
Ajanthan AsogamoorthyMember
Work History
March 2026
4 Commits • 3 Features
Mar 1, 2026Concise monthly summary for March 2026 (pytorch/executorch). Delivered new HierarchicalCSEPass to optimize nested graph structures across module hierarchies, introduced quantized max_pool2d support in cadence AOT library, addressed test flakiness by tightening tolerance in ReplaceTrivialConvWithLinear, and reorganized testing infrastructure by relocating graph_builder and program_builder into executorch.backends.test. These changes drove measurable business value: faster execution, expanded quantization capabilities, more stable tests, and improved maintainability.
4 Commits • 3 Features
Mar 1, 2026Concise monthly summary for March 2026 (pytorch/executorch). Delivered new HierarchicalCSEPass to optimize nested graph structures across module hierarchies, introduced quantized max_pool2d support in cadence AOT library, addressed test flakiness by tightening tolerance in ReplaceTrivialConvWithLinear, and reorganized testing infrastructure by relocating graph_builder and program_builder into executorch.backends.test. These changes drove measurable business value: faster execution, expanded quantization capabilities, more stable tests, and improved maintainability.
March 2026
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026: Implemented observability and performance improvements in the PyTorch executorch repo. Delivered configurable memory planning info logging to control memory usage prints, and introduced an in-place tensor slicing and scattering operation with Cadence backend support, including tests and a Cadence pass variant to enable graph serialization of slice_scatter_. These changes improve memory visibility, reduce data copies, and enable end-to-end serialization across pipelines, contributing to reliability and performance in production workloads. No major bugs were reported this month; focus was on feature delivery and validation.
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026: Implemented observability and performance improvements in the PyTorch executorch repo. Delivered configurable memory planning info logging to control memory usage prints, and introduced an in-place tensor slicing and scattering operation with Cadence backend support, including tests and a Cadence pass variant to enable graph serialization of slice_scatter_. These changes improve memory visibility, reduce data copies, and enable end-to-end serialization across pipelines, contributing to reliability and performance in production workloads. No major bugs were reported this month; focus was on feature delivery and validation.
January 2026
1 Commits
Jan 1, 2026January 2026 (2026-01) monthly summary for pytorch/executorch focused on numerical correctness and robustness. The primary deliverable this month was a critical bug fix addressing implicit float-to-double promotions in numerical utility functions, which reduces edge-case errors and improves reliability for tensor computations. No new features were released; the change tightens dtype handling and casting to ensure accurate comparisons and calculations across core utilities. This work enhances downstream model reliability and overall library correctness. Technologies demonstrated include careful dtype management in C++-level utilities, code review discipline, and a structured PR workflow.
1 Commits
Jan 1, 2026January 2026 (2026-01) monthly summary for pytorch/executorch focused on numerical correctness and robustness. The primary deliverable this month was a critical bug fix addressing implicit float-to-double promotions in numerical utility functions, which reduces edge-case errors and improves reliability for tensor computations. No new features were released; the change tightens dtype handling and casting to ensure accurate comparisons and calculations across core utilities. This work enhances downstream model reliability and overall library correctness. Technologies demonstrated include careful dtype management in C++-level utilities, code review discipline, and a structured PR workflow.
January 2026
December 2025
8 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for pytorch/executorch: focused on robustness of quantization, broadcasting semantics for quantized ops, and OSS-based modularization of cadence operators. Delivered stability fixes, feature enhancements, and architectural migrations to enable broader adoption and easier collaboration.
December 2025
8 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for pytorch/executorch: focused on robustness of quantization, broadcasting semantics for quantized ops, and OSS-based modularization of cadence operators. Delivered stability fixes, feature enhancements, and architectural migrations to enable broader adoption and easier collaboration.
November 2025
2 Commits • 2 Features
Nov 1, 2025Month: 2025-11 Key features delivered: - Codebase Robustness Improvements: Fixed C/C++ compilation warnings by adding proper type casts and adjusting function parameters; strengthens numeric operations and memory safety. - Quantized ReLU Enhancements with Error Checking: Added XT macros for error checking and improved zero-point type handling; updated tests for multi-dimensional and 1D tensors. Major bugs fixed: - Fixed C/C++ compilation warnings and related issues, reducing build failures. - Updated tests for quantized ReLU to ensure compatibility across multi-dimensional and 1D tensors; integrated error checking macros to catch invalid states. Overall impact and accomplishments: - Reduced build-time friction and risk of runtime failures; improved numerical robustness and test coverage; enabled more reliable model training and inference. Technologies/skills demonstrated: - C/C++ compiler hygiene, numeric operations robustness, memory management improvements, macro-based error checking (XT), test modernization, PR-driven workflow.
2 Commits • 2 Features
Nov 1, 2025Month: 2025-11 Key features delivered: - Codebase Robustness Improvements: Fixed C/C++ compilation warnings by adding proper type casts and adjusting function parameters; strengthens numeric operations and memory safety. - Quantized ReLU Enhancements with Error Checking: Added XT macros for error checking and improved zero-point type handling; updated tests for multi-dimensional and 1D tensors. Major bugs fixed: - Fixed C/C++ compilation warnings and related issues, reducing build failures. - Updated tests for quantized ReLU to ensure compatibility across multi-dimensional and 1D tensors; integrated error checking macros to catch invalid states. Overall impact and accomplishments: - Reduced build-time friction and risk of runtime failures; improved numerical robustness and test coverage; enabled more reliable model training and inference. Technologies/skills demonstrated: - C/C++ compiler hygiene, numeric operations robustness, memory management improvements, macro-based error checking (XT), test modernization, PR-driven workflow.
November 2025
October 2025
3 Commits • 3 Features
Oct 1, 2025October 2025 (pytorch/executorch) delivered key backend and platform improvements that boost reliability, cross-platform build support, and tensor operation consistency. The work focused on enhancing the Cadence convolution pass, stabilizing weight handling with ProxyValue, and enabling platform-accurate builds for operator library sub-targets, supported by expanded validation tests.
October 2025
3 Commits • 3 Features
Oct 1, 2025October 2025 (pytorch/executorch) delivered key backend and platform improvements that boost reliability, cross-platform build support, and tensor operation consistency. The work focused on enhancing the Cadence convolution pass, stabilizing weight handling with ProxyValue, and enabling platform-accurate builds for operator library sub-targets, supported by expanded validation tests.
September 2025
6 Commits • 4 Features
Sep 1, 2025September 2025 focused on enhancing Executorch memory management, graph export capabilities, and backend integration, while stabilizing the build and expanding input handling. Deliveries improved performance, reliability, and interoperability with cadence-based operations, enabling more efficient memory planning, more expressive export graphs, and smoother SVD integration.
6 Commits • 4 Features
Sep 1, 2025September 2025 focused on enhancing Executorch memory management, graph export capabilities, and backend integration, while stabilizing the build and expanding input handling. Deliveries improved performance, reliability, and interoperability with cadence-based operations, enabling more efficient memory planning, more expressive export graphs, and smoother SVD integration.
September 2025
August 2025
6 Commits • 3 Features
Aug 1, 2025Overview for 2025-08: Delivered three core features and one major robustness bug fix for pytorch/executorch, enhancing IR flexibility, memory allocation reliability, and Cadence backend capabilities, while improving tensor operation correctness and edge-case handling. Impact includes broader IR support (ATEN/EXIR) enabling more ops, reduced allocation failures due to smarter memory planning, faster and more reliable SVD backend ops, and improved model correctness across fusion, resizing, and zero-element inputs. Demonstrated technologies include C++ implementation, IR mode enumeration, memory planning heuristics (greedy with heuristic), Cadence backend integration, and robust edge-case handling in tensor ops.
August 2025
6 Commits • 3 Features
Aug 1, 2025Overview for 2025-08: Delivered three core features and one major robustness bug fix for pytorch/executorch, enhancing IR flexibility, memory allocation reliability, and Cadence backend capabilities, while improving tensor operation correctness and edge-case handling. Impact includes broader IR support (ATEN/EXIR) enabling more ops, reduced allocation failures due to smarter memory planning, faster and more reliable SVD backend ops, and improved model correctness across fusion, resizing, and zero-element inputs. Demonstrated technologies include C++ implementation, IR mode enumeration, memory planning heuristics (greedy with heuristic), Cadence backend integration, and robust edge-case handling in tensor ops.
July 2025
7 Commits • 4 Features
Jul 1, 2025July 2025 — pytorch/executorch: Achieved meaningful product and quality improvements across memory planning, data movement, and developer tooling. Key deliveries include memory planning enhancements with submodule hierarchies and placement constraints plus clearer error reporting; CPU iDMA dummy operators to broaden backend data operations; ProgramBuilder enhancements for parameters/constants/mutable buffers enabling flexible graph construction; expanded testing utilities with Result<T> and Error macros for robust error validation; and a HiFi operators header refactor to improve code organization and readability. These efforts deliver stronger memory efficiency, improved backend capability, and higher confidence through testing and maintainable code.
7 Commits • 4 Features
Jul 1, 2025July 2025 — pytorch/executorch: Achieved meaningful product and quality improvements across memory planning, data movement, and developer tooling. Key deliveries include memory planning enhancements with submodule hierarchies and placement constraints plus clearer error reporting; CPU iDMA dummy operators to broaden backend data operations; ProgramBuilder enhancements for parameters/constants/mutable buffers enabling flexible graph construction; expanded testing utilities with Result<T> and Error macros for robust error validation; and a HiFi operators header refactor to improve code organization and readability. These efforts deliver stronger memory efficiency, improved backend capability, and higher confidence through testing and maintainable code.
July 2025
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for pytorch/executorch. Delivered two major features and a critical bug fix with direct business impact: 1) iDMA AoT Fake Operators added (load, store, wait) with unit tests to ensure correct registration and functionality, enabling optimized memory handling for tensor operations. 2) Memory Planning Framework introduced via MemoryPlanningAlgo, including greedy placement for memory efficiency and blocking memory IDs by operation types to improve allocation predictability. 3) Fixed constant propagation output integrity by cloning constant outputs in exported programs to preserve correct specifications and prevent unintended aliasing.
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for pytorch/executorch. Delivered two major features and a critical bug fix with direct business impact: 1) iDMA AoT Fake Operators added (load, store, wait) with unit tests to ensure correct registration and functionality, enabling optimized memory handling for tensor operations. 2) Memory Planning Framework introduced via MemoryPlanningAlgo, including greedy placement for memory efficiency and blocking memory IDs by operation types to improve allocation predictability. 3) Fixed constant propagation output integrity by cloning constant outputs in exported programs to preserve correct specifications and prevent unintended aliasing.
May 2025
5 Commits • 4 Features
May 1, 2025May 2025 monthly summary focusing on delivering robust graph construction capabilities, strengthening the Cadence backend’s argument handling, and aligning optimization strategies with PyTorch PT2 compatibility, while adding bias support to the optimized linear path. These efforts collectively improve usability, correctness, and runtime behavior for Executorch users and downstream models.
5 Commits • 4 Features
May 1, 2025May 2025 monthly summary focusing on delivering robust graph construction capabilities, strengthening the Cadence backend’s argument handling, and aligning optimization strategies with PyTorch PT2 compatibility, while adding bias support to the optimized linear path. These efforts collectively improve usability, correctness, and runtime behavior for Executorch users and downstream models.
May 2025
April 2025
6 Commits • 1 Features
Apr 1, 2025Monthly summary for 2025-04 focusing on delivering business value through robustness, performance, and maintainability in pytorch/executorch. Highlights include architecture-safe build fixes, quantified improvements to quantization paths, targeted correctness tests to prevent regressions, and codebase cleanup that reduces technical debt while preserving feature velocity.
April 2025
6 Commits • 1 Features
Apr 1, 2025Monthly summary for 2025-04 focusing on delivering business value through robustness, performance, and maintainability in pytorch/executorch. Highlights include architecture-safe build fixes, quantified improvements to quantization paths, targeted correctness tests to prevent regressions, and codebase cleanup that reduces technical debt while preserving feature velocity.
February 2025
1 Commits • 1 Features
Feb 1, 2025Monthly summary for 2025-02 focused on performance optimization in graph execution for the pytorch/executorch project.
1 Commits • 1 Features
Feb 1, 2025Monthly summary for 2025-02 focused on performance optimization in graph execution for the pytorch/executorch project.
February 2025
January 2025
7 Commits • 5 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for pytorch/executorch focusing on stability, higher-order graph support, Python integration, and export flexibility. Delivered a set of features and a critical bug fix that improve runtime reliability, integration with Python workflows, and export capabilities, driving value in performance, maintainability, and user adoption.
January 2025
7 Commits • 5 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for pytorch/executorch focusing on stability, higher-order graph support, Python integration, and export flexibility. Delivered a set of features and a critical bug fix that improve runtime reliability, integration with Python workflows, and export capabilities, driving value in performance, maintainability, and user adoption.
December 2024
4 Commits • 3 Features
Dec 1, 2024December 2024 (pytorch/executorch) monthly summary focused on delivering backend enhancements, usability improvements, and export robustness to accelerate experimentation with non-core ATen ops while improving maintainability and build reliability. Key features delivered: - FusionG3 Backend Enhancements and op_add Support: Added op_add to FusionG3 backend with add_out, plus tests; enhanced FusionG3 operator handling with improved error logging and modular build targets to boost performance and maintainability. (Commits include Buckify op_add for FusionG3 and add cxx tests; FusionG3 operators. (#7315)). - GraphBuilder Enhancement for Real Tensors in Fake Tensor Mode: Enabled GraphBuilder to accept real torch.Tensor inputs in fake tensor mode, increasing usability and flexibility for model development and testing. (Commit: Support torch.Tensor in GraphBuilder.) - Export IR Validity Checks for Non-Core ATen Ops: Introduced intermediate representation validity checks in the export process to allow certain non-core ATen operations, expanding the reach of the compilation/export pathway and improving robustness. (Commit: Enable IR checks) Major bugs fixed: - No major bug fixes reported this month; primary focus on feature delivery and tooling enhancements to improve reliability and developer productivity. Overall impact and accomplishments: - Strengthened backend performance and maintainability for the FusionG3 path, with improved error visibility and modular build targets. - Expanded GraphBuilder usability by supporting real tensors in fake tensor mode, enabling more flexible experimentation without adding fake input constraints. - Increased robustness of the export/IR pathway by validating non-core ops, reducing friction for integrating broader operator sets. - The month delivered tangible business value by reducing time-to-experimentation, lowering maintenance overhead, and enabling broader experimentation with ATen ops. Technologies/skills demonstrated: - C++ backend engineering, Buck build system integration, and test development (cxx tests). - GraphBuilder internals and fake tensor mode semantics. - IR export pipeline and validation for non-core ATen ops. - Performance-oriented debugging, error logging enhancements, and modular build target design.
4 Commits • 3 Features
Dec 1, 2024December 2024 (pytorch/executorch) monthly summary focused on delivering backend enhancements, usability improvements, and export robustness to accelerate experimentation with non-core ATen ops while improving maintainability and build reliability. Key features delivered: - FusionG3 Backend Enhancements and op_add Support: Added op_add to FusionG3 backend with add_out, plus tests; enhanced FusionG3 operator handling with improved error logging and modular build targets to boost performance and maintainability. (Commits include Buckify op_add for FusionG3 and add cxx tests; FusionG3 operators. (#7315)). - GraphBuilder Enhancement for Real Tensors in Fake Tensor Mode: Enabled GraphBuilder to accept real torch.Tensor inputs in fake tensor mode, increasing usability and flexibility for model development and testing. (Commit: Support torch.Tensor in GraphBuilder.) - Export IR Validity Checks for Non-Core ATen Ops: Introduced intermediate representation validity checks in the export process to allow certain non-core ATen operations, expanding the reach of the compilation/export pathway and improving robustness. (Commit: Enable IR checks) Major bugs fixed: - No major bug fixes reported this month; primary focus on feature delivery and tooling enhancements to improve reliability and developer productivity. Overall impact and accomplishments: - Strengthened backend performance and maintainability for the FusionG3 path, with improved error visibility and modular build targets. - Expanded GraphBuilder usability by supporting real tensors in fake tensor mode, enabling more flexible experimentation without adding fake input constraints. - Increased robustness of the export/IR pathway by validating non-core ops, reducing friction for integrating broader operator sets. - The month delivered tangible business value by reducing time-to-experimentation, lowering maintenance overhead, and enabling broader experimentation with ATen ops. Technologies/skills demonstrated: - C++ backend engineering, Buck build system integration, and test development (cxx tests). - GraphBuilder internals and fake tensor mode semantics. - IR export pipeline and validation for non-core ATen ops. - Performance-oriented debugging, error logging enhancements, and modular build target design.
December 2024
November 2024
1 Commits
Nov 1, 2024November 2024 focused on stabilizing memory planning behavior in executorch and improving developer-facing diagnostics. Delivered a targeted bug fix to clarify error messaging when output data pointers cannot be overridden due to memory planning constraints, enhancing reliability and developer productivity for the executorch component.
November 2024
1 Commits
Nov 1, 2024November 2024 focused on stabilizing memory planning behavior in executorch and improving developer-facing diagnostics. Delivered a targeted bug fix to clarify error messaging when output data pointers cannot be overridden due to memory planning constraints, enhancing reliability and developer productivity for the executorch component.
October 2024
1 Commits • 1 Features
Oct 1, 2024Delivered Channel-Last Data Format Support in Convolution for pytorch/executorch, enabling NHWC data layout compatibility through shape-detection logic and adjusted input/output handling. Implemented transpose-based ops to support channels-last convolutions, expanding data-format interoperability and reducing preprocessing effort. Overall, this enhances production readiness for NHWC pipelines and broadens integration opportunities across data sources.
1 Commits • 1 Features
Oct 1, 2024Delivered Channel-Last Data Format Support in Convolution for pytorch/executorch, enabling NHWC data layout compatibility through shape-detection logic and adjusted input/output handling. Implemented transpose-based ops to support channels-last convolutions, expanding data-format interoperability and reducing preprocessing effort. Overall, this enhances production readiness for NHWC pipelines and broadens integration opportunities across data sources.
October 2024
Activity
Loading activity data...
Quality Metrics
Correctness92.8%
Maintainability85.2%
Architecture87.0%
Performance86.0%
AI Usage28.4%
Skills & Technologies
Programming Languages
CC++Python
Technical Skills
Build SystemsC developmentC++C++ developmentC++ programmingClient-server architectureCode RefactoringCross-Platform DevelopmentCross-platform developmentDeep LearningEmbedded systemsError handlingGoogle Test frameworkGraph OptimizationGraph Theory
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline