David Edelsohn Email & Phone Number

New York, Ny, Us

Santa Clara, Ca, Us

Co-Trustee of fund to benefit the GNU Toolchain: student travel grants, events, conferences, infrastructure.

Leadership & Governance* Founding member of the 14-person GCC Steering Committee under the Free Software Foundation, guiding the strategic direction of the GCC community and ensuring the production of high-quality compiler releases used in 96% of the top 1M servers and 90% of cloud infrastructure.* Initiated the reintegration of EGCS and GCC, establishing new leadership and development models to streamline progress and ensure a cohesive development community.* Negotiated and announced new GCC copyright assignment policy, fostering community contributions while ensuring legal compliance.Licensing & Intellectual Property* Proposed and led negotiations with the FSF to create the GCC Runtime Exception License, enabling the development of GCC Link-Time Optimization (resulting in a 10% performance boost), Plug-ins, and JIT, crucial for modern software development.* Initiated and negotiated IBM and Rice University licensing of register allocation patents, securing critical intellectual property to support GCC’s ongoing development.Technical Innovations* Unified Dataflow Framework: Initiated a unified dataflow framework for GCC, improving the efficiency of compiler operations.* Link Time Optimization & Shrink-Wrapping: Initiated and organized GCC’s Link Time Optimization and Shrink-Wrapping optimization efforts, leading to significant performance improvements in compiled code.* GCC-Rust Project: Co-launched the GCC-Rust project, enhancing the availability, security, and usability of the Rust programming language within Linux and cloud ecosystems.Community Engagement & Mentorship* Co-administered Google Summer of Code for GCC* Managed GCC’s social media presence on platforms like Twitter (@gnutools with 10,200 followers), Reddit, and Hacker News, increasing community engagement and visibility of the GCC project.Open Source Supply Chain* Led the Core Toolchain Infrastructure project to improve GNU Toolchain software supply chain security.

Armonk, New York, Ny, Us

Ecosystem Leadership & Strategic Initiatives* Launched the AI Alliance Diverse Hardware Ecosystem and Foundation Model Datasets Focus Area. Championed Open Models, Open Data, and open support for all AI accelerators, ensuring that the AI ecosystem remains accessible, interoperable, and innovation-driven.* Launched the AI Alliance Data Centers workgroup to co-develop solutions to the unique challenges of data center construction, operations, power, cooling, fit-out, communication, space planning, and supply chain for the AI/HPC industry. Designed energy reporting labeling for models, accelerators, and data centers.Technical Contributions & Ecosystem Development* Developed the AI Accelerator Software Ecosystem Guide, providing a comprehensive roadmap for organizations to integrate and optimize AI accelerators, driving performance improvements across diverse hardware.* Launched the Open Compute AI Lab, creating an open environment for developer access and a standardized environment to assess and compare AI hardware and software performance, improving transparency and driving competition in the AI industry.Thought Leadership & Community Engagement* Hosted the MLIR AI/ML Leaders Summit, bringing together thought leaders and key stakeholders in the AI and ML space to share insights, collaborate, and shape the future direction of AI/ML ecosystems.* Launched the Open Trusted Data Initiative, establishing a framework for secure, transparent, and trusted data sharing across the AI community, enabling responsible innovation and ensuring data integrity.

Armonk, New York, Ny, Us

Open Source Leadership* Expanded the Open Source Software ecosystem on IBM Power and IBMz by optimizing 30 numerical and cryptographic libraries critical to IBM clients.* Led a distributed team of 20 domain-expert, freelance Open Source developers, and collaborated with global Open Source communities to improve performance on IBM Power and IBMz platforms.* Introduced Hugging Face to IBM, strengthening AI/ML capabilities within IBM’s ecosystem.Performance Optimization & Technical Contributions* Compiler and AI/ML Libraries: Led optimization efforts for compilers, AI/ML libraries, and audio/video codecs, achieving state-of-the-art SIMD performance.* Python NumPy SIMD Project: Achieved a 4x performance improvement and successfully launched the Python NumPy Universal SIMD intrinsics project.* Cryptographic Libraries: Delivered a 10x hardware-accelerated performance boost to Nettle and libgcrypt cryptographic libraries, critical to IBM Power and IBMz systems.* LLVM on AIX: Accelerated the enablement of the LLVM port to AIX, achieving feature parity and compatibility at general availability.Strategic Initiatives & Ecosystem Governance* SPDX Specification: Enhanced the SPDX specification, improving Open Source software supply chain security.* IBM Representation: Represented IBM in the OpenSSF (Open Source Security Foundation) software supply chain strategy working groups, contributing to industry-wide improvements.* Metaverse & Blockchain: Led initiatives on Metaverse digital twins and Blockchain data oracles, aligning cutting-edge technology with IBM’s strategic vision.Innovation & Emerging Technologies* RISC-V Architecture: Spearheaded the development of the alternative RISC-V Scalable Vector and Scalable Matrix architectures, expanding IBM’s reach into emerging hardware technologies.

Armonk, New York, Ny, Us

Ecosystem Leadership & Business Development* Expanded the Open Source ecosystem and community for IBM Power and IBMz, supporting 100 major IBM financial, retail, and government enterprise clients.* Initiated AI on Z as a new business opportunity, addressing end-to-end latency and security for AI workloads on IBMz systems.* Launched IBM's Bountysource program for POWER and IBMz systems, achieving a 4x SIMD performance acceleration across numerous libraries including OpenBLAS, Eigen, PyPy, OpenJDK, and many more.* Deployed thousands of Linux on Power, Linux on z, and AIX VMs for Open Source developers through platforms like GNU Compile Farm and OSU.Compiler and Language Optimization* SIMD Optimizations: Optimized GCC and SIMDized Python and ML/DL libraries, achieving state-of-the-art performance improvements.* Dynamic Programming Languages: Discovered optimization techniques for Dynamic Programming Languages, resulting in the "Re-purposed JITs" paper.* PowerPC Contributions: Co-developed the 32-bit and 64-bit PowerPC Linux ports and optimizations for PyPy and v8/node.js, collaborating with institutions like the University of Duesseldorf.* IBM Power Performance Enhancements: Improved IBM Power performance by 5% through ISA and micro-architecture optimizations for Dynamic Programming Languages.Open Source Contributions & Maintenance* AIX Buildfarm: Initiated and managed the AIX buildfarm, supporting key projects such as node.js, OpenJDK, Golang, and LLVM CI systems.* Maintainer of GCC for AIX and PowerPC: Enabled hundreds of Open Source packages for AIX and over 30,000 Linux distro packages for PPC64 Linux.Intellectual Property & LicensingOpen Source Licensing Expertise: Provided critical guidance to IBM’s Intellectual Property and Licensing organization regarding the GNU General Public License (GPL), helping define IBM's strategy and contributions to the Open Source community.

Armonk, New York, Ny, Us

Business Development & Strategic Impact* Created a $100 million business for IBM by developing the GNU Toolchain for PPC64 Linux and establishing the PPC64 Linux port, transforming IBM’s presence in the Linux market.* Co-created the PowerPC Linux toolchain, contributing to IBM’s competitive edge in the enterprise and tech space.Technical Leadership & Innovation* Led the creation of the PPC64 Linux ABI (Application Binary Interface), which standardized the way Linux applications run on PowerPC hardware, essential for cross-platform compatibility and performance.* Initiated the PPC64 Linux port in collaboration with IBM and New Mexico Tech, laying the foundation for further advancements in IBM's Linux strategy.High-Performance Computing Achievements* K42 Operating System: Contributed to the K42 operating system, designed for scalable, high-performance computing, particularly in multi-processor environments.Market and team leadership* Chief architect for IBM, Apple, Red Hat, and CodeSourcery GCC compiler teams achieving leadership PC performance.* Performance Leadership: Achieved 800 SpecINT and 840 SpecFP performance leadership on the PowerMac G5, recognized during Steve Jobs’ Apple announcement, underscoring IBM’s role in high-performance computing.Team Leadership & Collaboration* Formed and led the toolchain team for the IBM Linux Technology Center, ensuring the successful development and deployment of Linux toolchains, essential for expanding IBM’s influence in the open-source community.

Armonk, New York, Ny, Us

* Designed and implemented Java Bignum performance for PowerPC and S/390.* Computer system security and penetration testing engineer.* Designed and developed K42 Operating System toolchain and networking stack.* Maintainer of PowerPC and AIX port of GCC.* Initiated engagement with Cygnus Solutions for GNUPro Toolchain support of AIX, MacOS, and embedded systems at PowerPC launch.

Armonk, New York, Ny, Us

Research of galaxy collisions using Barnes-Hut n-body algorithm on IBM SP2 Parallel Computers.

Dallas, Tx, Us

Technical advisor to startup investment fund.

El Segundo, California, Us

* Architected and developed maximum entropy-based image processing systems using IDL language and specialized vector processor for Astrophysics and Remote Sensing Department, Aerospace Laboratories. Analyzed IRAS satellite data.* Developed and enhanced VAX/VMS device driver for graphics workstation.* Implemented converter and device driver for CELCO film recorder. Created schema and interface for searchable database of IRAS objects.* Maintenance and system administration of multiple VAX/11-780 and MicroVAX II systems, and DECnet network.

M.S., Astronomy, Caltech Fellowship

Ph.D., Physics, Syracuse University Fellowship, Ibm Fellowship

A.B., Physics And Astronomy, Department Of Astronomy Dorothea Klumpke-Roberts Prize

Education record

Education record

Education record