Experience
Senior Principal Engineer |
Hewlett Packard Enterprise (formerly Cray Inc.) |
2025-Present |
Principal Engineer |
2022-2025 |
Expert Engineer |
2021-2022 |
Specialist Engineer |
2019-2021 |
Individual contributor to two open-source projects: Chapel and Arkouda
- Technical lead of the Arkouda efforts at HPE. Duties include: technical leadership, prioritization, regular and ad-hoc communication to support stakeholders.
- Actively involved in community interactions: in charge of Chapel’s LinkedIn account, runs the project’s quarterly newsletters, directly supports several Chapel user groups, gives introductory and advanced Chapel talks, served as CHIUW/ChapelCon general chair for several years.
- Led ~5 developers in implementing vendor-neutral GPU support in Chapel, which is considered to be in a mature state now. Duties included: setting up deliverables for each quarterly release; laying the groundwork for the initial implementation and continual technical contributions; helping team members with their sprint planning towards achieving goals; triaging bug reports from users; giving talks, tutorials, and demos on Chapel’s GPU support
- As a member of the performance team, implements compiler optimizations to deliver better performance with minimal/no user effort.
- Serves as a member of the Chapel Technical Steering Committee
Adjunct Lecturer |
The George Washington University |
2018 |
Taught the graduate level ECE6105 - Introduction to High-Performance Computing class for a semester. This entailed:
- 14 lectures that were 150-minutes,
- Preparing and grading a midterm and a final exam,
- Preparing weekly homeworks and projects
Software Intern |
Cray Inc. |
2016 |
Worked on the development of open-source parallel programming language Chapel.
- Added a compiler pass to denormalize the abstract syntax tree which resulted in much simpler generated code,
- Implemented bulk index addition support to the native sparse index sets (domain).
Education
Ph.D. in Computer Engineering |
The George Washington University |
2020 |
- Dissertation Title: Productive Machine Learning Support for Locality Optimizations in Distributed Memory Systems (Best Dissertation Award)
B.Sc. in Computer Engineering |
Bilkent University |
2013 |
- Electives: Parallel Computing, Computer Architecture, Distributed Systems
- High honor graduation
Committee Memberships
| ISC High Performance | 2026 |
| Programming Language Design and Implementation (PLDI) | 2026 |
| International Conference on Supercomputing (ICS) | 2026 |
| Workshop on Asynchronous Many-Task Systems and Applications (WAMTA) | 2026 |
| Redefining Scalability for Diversely Heterogeneous Architectures (RSDHA) | 2023, 2026 |
| HPE Tech Con - Reviewer | 2025, 2026 |
| IEEE/ACM Supercomputing (SC) | 2024, 2025 |
| Chapel Implementers and Users Workshop (CHIUW) - Chair | 2021-2023 |
| ACM International Conference on Parallel Processing (ICPP) | 2022 |
| IEEE International Parallel and Distributed Processing Symposium (IPDPS) | 2022 |
| ACM Principles and Practice of Parallel Programming (PPoPP) | 2022 |
| Chapel Implementers and Users Workshop (CHIUW) | 2020 |
| Parallel Applications Workshop: Alternatives To MPI (PAW-ATM) | 2020 |
| Parallel Applications Workshop: Alternatives to MPI (PAW-ATM) | 2023-2025 |
| ChapelCon - General Chair | 2024 |
| IEEE/ACM Cluster, Cloud and Grid Computing (CCGrid) | 2018 |
| Elsevier Future Generation Computer Systems (FGCS) | |
| IEEE Pacific Rim Conf. on Communications, Computers and Signal Proc. (PACRIM) | 2019 |
| IEEE Networking, Architecture, and Storage (NAS) | 2018 |
| IEEE Application-specific Systems, Architectures and Processors (ASAP) | 2015,2016 |
Teaching & Mentoring
| Mentor - Bilkent University Mentorship Program | 2019-Present |
| Mentor - Google Summer of Code | 2017-2021 |
| Lecturer - The George Washington University | 2018 |
| Coach - Rails Girls Summer of Code | 2018 |
| Graduate Teaching Assistant - The George Washington University | 2013-2016 |
| Undergraduate Teaching Assistant - Bilkent University | 2011-2013 |
Honors & Awards
| Participant - IEEE/ACM Supercomputing (SC) Early Career Program | 2021 |
| Winner - GWU ECE Best Dissertation Award | 2020 |
| Runner-up - GWU Innovation Showcase | 2019 |
| Presenter - Travel Award - IEEE/ACM Supercomputing (SC) | 2018 |
| Outstanding Service Award - IEEE/ACM CCGrid | 2018 |
| Winner - GWU Research Days | 2018 |
| Runner-up - GWU School of Engineering and Applied Science R&D Showcase | 2017 |
| Participant - Travel Award - European Commission Human Brain Project (HBP) School | 2014 |
| 11th - University Entrance Exam | 2008 |
Talks
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Scalable Parallel Programming with Chapel: From Multicore CPUs to GPU-Powered Supercomputers (a.k.a What Chapel Users Get Done and How) LUMI User Coffee Breaks October 2025
-
Chapel’s Batteries-Included Approach for Portable Parallel Programming Los Alamos National Laboratory - Advances in Applied Computer Science Invited Speaker Series June 2025
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High-Performance, Productive Programming using Chapel with Examples from the CFD Solver CHAMPS NASA Ames Research Center February 2025 (In collaboration with Eric Laurendeau and Karim Zayni.)
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The Chapel Parallel Programming Language and its Ecosystem HPE Inner Sourcing Summit II. October 2024. (In collaboration with Jade Abraham.)
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Vendor-Neutral GPU Programming in Chapel HPE Developer Meetup. July 2024. (In collaboration with Jade Abraham.)
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Making Parallel Programming and GPUs More Accessible with Chapel AMD Developer Sync (Internal to AMD). May 2024.
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Portable Support for GPUs and Distributed-Memory Parallelism in Chapel Cray Users Group (CUG). May 2024. (In collaboration with and presented by Andy Stone)
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High-Level, Vendor-Neutral GPU Programming in Chapel Hewlett Packard Enterprise (Internal). Jan 2024.
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Generating GPU Kernels from Chapel’s Features for Parallelism and Locality SIAM PP22. Feb 2022
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High-Performance Computing and Advanced Programmer Productivity Bilkent University. Jan 2020.
Publications
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Investigating Portability in Chapel for Tree-based Optimization on GPU-powered Clusters Tiago Carneiro; Engin Kayraklioglu; Guillaume Helbecque; Nouredine Melab; Euro-Par 2024
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Productive, Vendor-Neutral GPU Programming Using Chapel Engin Kayraklioglu; Andy Stone; WACCPD 2024 (SC)
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Virtualizing a Post-Moore’s Law Analog Mesh Processor: The Case of a Photonic PDE Accelerator Jeff Anderson; Engin Kayraklioglu; Hamid Reza Imani; Chen Shen; Mario Miscuglio; Volker J Sorger; Tarek El-Ghazawi; ACM TECS Volume 22, Issue 2 (2023)
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Recent GPU Programming Improvements in Chapel Engin Kayraklioglu; Andy Stone; Daniel Fedorin; CHIUW 2023
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Targeting GPUs Using Chapel’s Locality and Parallelism Features Engin Kayraklioglu; Andy Stone; David Iten; Sarah Nguyen; Michael Ferguson; Michelle Strout; CHIUW 2022
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Locality-Based Optimizations in the Chapel Compiler Engin Kayraklioglu; Elliot Ronaghan; Michael P Ferguson; Bradford L Chamberlain; LCPC 2021
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Development of Parallel CFD Applications with the Chapel Programming Language Matthieu Parenteau; Simon Bourgault-Cote; Frédéric Plante; Engin Kayraklioglu; Eric Laurendeau; AIAA Scitech 2021 Forum 2021
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A Machine-Learning-Based Framework for Productive Locality Exploitation Engin Kayraklioglu; Erwan Favry; Tarek El-Ghazawi; *IEEE TPDS Volume 32, Issue 6 (2021)
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Induced Homomorphism: Kirchhoff’s Law in Photonics Shuai Sun; Mario Miscuglio; Xiaoxuan Ma; Zhizhen Ma; Chen Shen; Engin Kayraklioglu; Jeffery Anderson; Tarek El Ghazawi; Volker J Sorger; Nanophotonics 2020
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ROC: A Reconfigurable Optical Computer for Simulating Physical Processes Jeff Anderson; Engin Kayraklioglu; Shuai Sun; Joseph Crandall; Yousra Alkabani; Vikram Narayana; Volker Sorger; Tarek El-Ghazawi; ACM TOPC Volume 7, Issue 1 (2020)
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Software Stack for an Analog Mesh Computer: The Case of a Nanophotonic PDE Accelerator Engin Kayraklioglu; Jeff Anderson; Hamid Reza Imani; Volker Sorger; Tarek El-Ghazawi; ACM Frontiers 2020
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An Automated Machine Learning Approach for Data Locality Optimizations in Chapel Engin Kayraklioglu; Tarek El-Ghazawi; CHIUW 2020 (IPDPS)
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Virtualizing Analog Mesh Computers: The Case of a Photonic PDE Solving Accelerator Jeff Anderson; Engin Kayraklioglu; Hamid Reza Imani; Mario Miscuglio; Volker J Sorger; Tarek El-Ghazawi; ICRC 2020
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A Machine Learning Approach for Productive Data Locality Exploitation in Parallel Computing Systems Engin Kayraklioglu; Erwan Favry; Tarek El-Ghazawi; CCGrid 2019
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One-to-Three Silicon Photonic Grid Power Splitter for Optical Mesh Solver Shuai Sun; Mario Miscuglio; Ruoyu Zhang; Zhizhen Ma; Engin Kayraklioglu; Tarek El-Ghazawi; Volker J Sorger; Laser Science 2019, Optica
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APAT: An Access Pattern Analysis Tool for Distributed Arrays Engin Kayraklioglu; Tarek El-Ghazawi; ACM Frontiers 2018
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LAPPS: Locality-Aware Productive Prefetching Support for PGAS Engin Kayraklioglu; Michael P Ferguson; Tarek El-Ghazawi; ACM TACO Volume 15, Issue 3 (2018)
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Productive Data Locality Optimizations in Distributed Memory Engin Kayraklioglu; Tarek El-Ghazawi; SC18 Doctoral Showcase
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Comparative Performance and Optimization of Chapel in Modern Manycore Architectures Engin Kayraklioglu; Wo Chang; Tarek El-Ghazawi; CHIUW 2017 (IPDPS)
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HPC-Oriented Toolchain for Hardware Simulators Olivier Serres; Engin Kayraklioglu; Tarek El-Ghazawi; CLUSTER 2017
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PGAS Access Overhead Characterization in Chapel Engin Kayraklioglu; Olivier Serres; Ahmad Anbar; Hashem Elezabi; Tarek El-Ghazawi; CHIUW 2016 (IPDPS)
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Exploiting Hierarchical Locality in Deep Parallel Architectures Ahmad Anbar; Olivier Serres; Engin Kayraklioglu; Abdel-Hameed A Badawy; Tarek El-Ghazawi; ACM TACO Volume 13, Issue 2 (2016)
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Assessing Memory Access Performance of Chapel through Synthetic Benchmarks Engin Kayraklioglu, Tarek El-Ghazawi; CCGrid 2015
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PHLAME: Hierarchical Locality Exploitation Using the PGAS Model Ahmad Anbar; Olivier Serres; Engin Kayraklioglu; Abdel-Hameed Badawy; Tarek El-Ghazawi; PGAS 2015
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Accelerating Brain Simulations on Graphical Processing Units Engin Kayraklioglu; Tarek El-Ghazawi; Zeki Bozkus; CIT 2015
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Leveraging Hierarchical Data Locality in Parallel Programming Models Ahmad Anbar; Engin Kayraklioglu; Olivier Serres; Tarek El Ghazawi; HPCC 2014