
Alessandro Thea developed and maintained core data acquisition and configuration tooling for the DUNE-DAQ project, focusing on robust feature delivery and long-term maintainability. Working across repositories such as fdreadoutlibs and daqconf, he implemented enhancements to data processing pipelines, including support for new frame types and improved timing precision using C++. He refactored configuration management and command-line interfaces, leveraging Python and CMake to streamline developer workflows and system integration. His work addressed reliability, observability, and cross-compiler compatibility, with careful attention to code organization and documentation. Alessandro’s contributions enabled safer automation, clearer diagnostics, and more flexible, production-ready DAQ systems.

September 2025 monthly summary for DUNE-DAQ/fdreadoutlibs: two focused changes delivered to strengthen data timing accuracy and cross-compiler portability. Readout timing precision enhancement converts samples_tick_difference from unsigned 64-bit to float and updates TDEEthTypeAdapter.hpp to 31.25, enabling fractional tick synchronization. Include guard compatibility fix replaces #pragma once with traditional include guards (#ifndef/#define/#endif) in DAPHNEEthTypeAdapter.hpp, improving portability across build systems. These updates reduce integration risk, improve timing reliability, and enhance maintainability of the fdreadoutlibs module for downstream systems.
September 2025 monthly summary for DUNE-DAQ/fdreadoutlibs: two focused changes delivered to strengthen data timing accuracy and cross-compiler portability. Readout timing precision enhancement converts samples_tick_difference from unsigned 64-bit to float and updates TDEEthTypeAdapter.hpp to 31.25, enabling fractional tick synchronization. Include guard compatibility fix replaces #pragma once with traditional include guards (#ifndef/#define/#endif) in DAPHNEEthTypeAdapter.hpp, improving portability across build systems. These updates reduce integration risk, improve timing reliability, and enhance maintainability of the fdreadoutlibs module for downstream systems.
In August 2025, delivered DAPHNEEth frame processing support in the fdreadoutlibs for DUNE-DAQ, expanding data format compatibility and processing capabilities. Key changes include a new DAPHNEEth type adapter, frame size constants, timestamp manipulation utilities, and frame iteration utilities. Updated DUNEWIBEthTypeAdapter.hpp constant to align with the new frame type, and added a dedicated DAPHNEEthFrameProcessor header for frame handling. A single core commit underpins this work: ee9af6842900465a9b68cb50d26357e931190ed5 - "Adding type adapter for DAPHNEEth". This work enables robust ingestion and processing of DAPHNEEth frames, improving end-to-end data flow and readiness for production use.
In August 2025, delivered DAPHNEEth frame processing support in the fdreadoutlibs for DUNE-DAQ, expanding data format compatibility and processing capabilities. Key changes include a new DAPHNEEth type adapter, frame size constants, timestamp manipulation utilities, and frame iteration utilities. Updated DUNEWIBEthTypeAdapter.hpp constant to align with the new frame type, and added a dedicated DAPHNEEthFrameProcessor header for frame handling. A single core commit underpins this work: ee9af6842900465a9b68cb50d26357e931190ed5 - "Adding type adapter for DAPHNEEth". This work enables robust ingestion and processing of DAPHNEEth frames, improving end-to-end data flow and readiness for production use.
July 2025: Delivered targeted enhancements to the daqconf-inspector, improving validation accuracy, UI clarity, and user experience; expanded visibility into sessions and connections; and standardized tooling naming for easier maintenance. These changes reduce misclassification risk, accelerate diagnostics, and set the stage for future enhancements.
July 2025: Delivered targeted enhancements to the daqconf-inspector, improving validation accuracy, UI clarity, and user experience; expanded visibility into sessions and connections; and standardized tooling naming for easier maintenance. These changes reduce misclassification risk, accelerate diagnostics, and set the stage for future enhancements.
May 2025 summary: Delivered high-value features and stability improvements across the DUNE-DAQ stack, with a focus on developer productivity, automation safety, and data-processing reliability. Key work included configurable SSH host key suppression for localhost, integration of the ConfigObjectFactory across SmartApps with a simplified constructor, stability fixes to startup involve OKS file locks, and significant TDE data-processing enhancements (TPG integration and WIB-aligned processing) with a library upgrade for robustness. Also completed API refinements that reduce developer friction and enable smoother releases.
May 2025 summary: Delivered high-value features and stability improvements across the DUNE-DAQ stack, with a focus on developer productivity, automation safety, and data-processing reliability. Key work included configurable SSH host key suppression for localhost, integration of the ConfigObjectFactory across SmartApps with a simplified constructor, stability fixes to startup involve OKS file locks, and significant TDE data-processing enhancements (TPG integration and WIB-aligned processing) with a library upgrade for robustness. Also completed API refinements that reduce developer friction and enable smoother releases.
April 2025 monthly summary: Delivered cross-repo improvements focusing on configuration reliability, data representation, modular architecture, and observability. Key work spans appmodel, fdreadoutlibs, and drunc, with substantial enhancements to enablement logic, data schemas, and diagnostic tooling. The effort also emphasized code quality and maintainability to support long-term velocity.
April 2025 monthly summary: Delivered cross-repo improvements focusing on configuration reliability, data representation, modular architecture, and observability. Key work spans appmodel, fdreadoutlibs, and drunc, with substantial enhancements to enablement logic, data schemas, and diagnostic tooling. The effort also emphasized code quality and maintainability to support long-term velocity.
March 2025 performance highlights across DUNE-DAQ components. Implemented a structural refactor to improve maintainability, aligned release processes, and set the stage for future feature work while preserving existing functionality.
March 2025 performance highlights across DUNE-DAQ components. Implemented a structural refactor to improve maintainability, aligned release processes, and set the stage for future feature work while preserving existing functionality.
December 2024 monthly summary focusing on key accomplishments across DUNE-DAQ/appmodel and DUNE-DAQ/daqconf. Delivered clearer documentation for App Environment CLI variable processing and completed a release cycle for daqconf with a subsequent rollback to resolve a post-release issue. Demonstrated disciplined release management, improved clarity for downstream integration, and schema support work.
December 2024 monthly summary focusing on key accomplishments across DUNE-DAQ/appmodel and DUNE-DAQ/daqconf. Delivered clearer documentation for App Environment CLI variable processing and completed a release cycle for daqconf with a subsequent rollback to resolve a post-release issue. Demonstrated disciplined release management, improved clarity for downstream integration, and schema support work.
November 2024 monthly summary focusing on inspector usability, data-path configurability, and stability across DUNE-DAQ stacks. Delivered targeted enhancements to the inspector tooling and D2D visibility, added capabilities for Felix data integration via a factory-based approach, and introduced emulator configurability to improve testing fidelity. Reverted a problematic merge to restore stability, ensuring no user-facing regressions. These efforts collectively increased debugging efficiency, data-distribution control, and overall system robustness for production and testing environments.
November 2024 monthly summary focusing on inspector usability, data-path configurability, and stability across DUNE-DAQ stacks. Delivered targeted enhancements to the inspector tooling and D2D visibility, added capabilities for Felix data integration via a factory-based approach, and introduced emulator configurability to improve testing fidelity. Reverted a problematic merge to restore stability, ensuring no user-facing regressions. These efforts collectively increased debugging efficiency, data-distribution control, and overall system robustness for production and testing environments.
October 2024 monthly summary for DUNE-DAQ development. Delivered key features, fixed critical reliability bugs, and strengthened test and configuration tooling. Across four repositories, improved data integrity, observability, and maintainability with tangible business value: fewer flaky tests, more robust data processing, and clearer interfaces for future capabilities.
October 2024 monthly summary for DUNE-DAQ development. Delivered key features, fixed critical reliability bugs, and strengthened test and configuration tooling. Across four repositories, improved data integrity, observability, and maintainability with tangible business value: fewer flaky tests, more robust data processing, and clearer interfaces for future capabilities.
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