Alberta Tools, Compilers, and Talks

Vulkan Vision (V-Vision), a framework for shader instrumentation in Vulkan applications that extends Vulkan validation layer instrumentation capabilities to enable meaningful performance and behaviour-centric instrumentation. KernelFaRer, a robust pattern matcher for LLVM IR. Keynote Talk at LCPC 2020: Until Compilers Get Better at Code Generation: Leverage Human Expertise The Alberta Worloads for the SPEC CPU 2017 Benchmark Suite both additional workloads for the benchmarks included in the suite and, for some benchmarks, programs that can be used to generate additional workloads. These workloads are intended for the evaluation of learning techniques in compilers, computer architecture, program analysis, and operating systems. A Graphics Library for RISC-V (GLIR) to emulate graphics in the RARS Simulator for RISC-V. Converted to RISC-V by Taylor Zowtuk, a former CMPUT 229 students. A Graphics Library for MIPS (GLIM) programming using terminals in SPIM. Created by Austin Crapo, a former CMPUT 229 students. Talk How did this get published? Pitfalls in experimental evaluation of computing systems (.pptx) (.pdf) at the Languages, Compilers, Tools and Theory for Embedded Systems June 12, 2012, Beijing. unPython: unwrapping python to C. unPython is a Python-to-C open source compiler that is currently mainly developed by my M.Sc. student Rahul Garg.

Awards and Recognitions

My M.Sc. student Nathan Henderson received a Best M.Sc. Thesis Award from was selected as the runner up for the Department of Computing Science at the University of Alberta in February 2024. IEEE Computer Society Distinguished Visitor (2024-2026) Our paper "Stub Folding: Retaining Type Specialization to Increase the Efficiency of Highly Polymorphic Inline Caches" received the Best Paper Award at the 33rd Annual International Conference on Computer Science and Software Engineering in 2023. Our paper To Pack or Not to Pack: A Generalized Packing Analysis and Transformation received a Distinguished Paper Award at the IEEE/ACM International Symposium on Code Generation and Optimization (CGO) in 2023. 2022 Standard Performance Corporation Evaluation (SPEC) Presidential Award University of Alberta 2020 COVID-19 Remote Teaching Award --- Poster for Festival of Teaching and Learning. My M.Sc. student David Pankratz received a bronze medal in the Huawei Central Software Institute (CSI) Innovation Project Contest in 2020. Jack Marques Franco, a visiting student from Universidad Autonoma de Occident in Cali, Colombia, received the Outstanding International Intern - Canadian Bureau for International Education (CBIE) award at the Festival of Undergraduate Research & Creative Activities (FURCA). University of Alberta Award for Outstanding Mentorship in Undergraduate Research & Creative Activities, March 2020. My M.Sc. student Artem Chikin was selected the Student of the Year by the IBM Centre for Advanced Studies in November 2018, Markham, ON, Canada. My M.Sc. student Taylor Lloyd was selected as the runner up for the Department of Computing Science Masters Thesis Award in October 2018. Our collaborative research project was the runner-up for the Project of the Year awarded by the IBM Centre for Advanced Studies in November 2018, Markham, ON, Canada. My M.Sc. student Artem Chikin received the Department of Computing Science M. Sc. Early Achievement Award in October 2017. SPEC 2017 Award -- SPEC CPU 2017 Benchmark Release 2017 Interdepartmental Science Students' Society Award for Excellence in Teaching University of Alberta Faculty of Science Excellence in Teaching Award, May 2015. Designated a Distinguished Engineer by the Association for Computing Machinery (ACM) in 2014. My student Matthew Gaudet was the Runner-up for the 2014 Departmental M.Sc. Outstanding Thesis Award. I was a Distinguished Association for Computing Machinery (ACM) Speaker (2012-2014). Ph.D. student Alejandro Ramirez-Sanabria received a prestigious IBM Ph.D. Fellowship in 2014 and 2015. I received a 2014 Interdepartmental Science Students' Society Award for Excellence in Teaching M.Sc. student Matthew Gaudet has been selected to receive the University of Alberta Alumni Award of Excellence. Elected to the Standard Performance Evaluation Corporation (SPEC) Board of Directors - January 2014. I received the 2012 IBM Center for Advanced Studies (CAS) Resarch Faculty Fellow of the Year award. Previous awards and recognitions

Students (Graduate) and Post Docs
	Caio Salvador Rohwedder (Ph.D. - UAHJIC)		Reza Ghanbari (M.Sc. - UAHJIC)
	Quinn Pham (M.Sc. - IBM CAS)		Danila Seliayeu (M.Sc. - IBM CAS)
	Maedeh Dehghan (M.Sc. - UAHJIC)

Students (Undergraduate)
	Ayokunle Amodu (B.Sc.) Summer 2024		Madison Bradley (B.Sc. - NSERC URSA) Summer 2024
	Ayrton Chilibeck (B.Sc.) Summer 2024		Alexander Fair (B.Sc. - NSERC USRA) Summer 2024
	Yash Jha (B.Sc.) Summer 2024		Zhaoyu Li (B.Sc.) Summer 2024
	Justin Meimar (B.Sc.) Summer 2024		Danila Seliayeu (B.Sc.) Summer 2024
	SarahThomson (B.Sc.) Summer 2024		Nathan Ulmer (B.Sc.) Summer 2024
	Christiann Venter (B.Sc.) Summer 2024

Publications
Compiler Design and Implementation	Multi-Threaded Architectures and Programming Models	High-Performance Computing
Parallel Architectures for Symbolic Processing	Combinatorial Optimization Problems	Theory and Applications of Artificial Neural Networks
Engineering and Computing Science Education	Design for Testability	Cache-Conscious Algorithms
	Internet Protocol Routing Caches

Alumni (Graduate)
	Deric Cheung (M.Sc. - UAHJIC) Thesis: Applications and Limitations of Vulkan-Layer-based Instrumentation
	Nathan Henderson (M.Sc.) Thesis: On Policy Decisions of Polymorphic Inline Caches in Dynamically-Typed Language Implementations Employment: IBM Canada, Markham, ON		Tyler Gobran (M.Sc. - IBM CAS) Thesis: DASS: Dynamic Adaptive Sub-Target Specialization Employment: Persimmons, Inc., Edmonton, AB, Canada
	João Paulo Labegalini de Carvalho (Post-Doc Fellow) Employment: AMD, Edmonton, AB, Canada		Rouzbeh Paktinatkeleshteri (M.Sc. - UAHJIC) Thesis: Efficient Auto-Vectorization for Control-Flow Dependent Loops through Data Permutation Employment: Huawei, Markham, ON
	Ivan Korostelev (M.Sc., IBM CAS) Thesis: Efficient Memory Hierarchy Utilization for Matrix Multiplication and Convolution on CPUs Employment: Synopsis, Calgary, AB		Wyatt Praharenka (M.Sc. - UAHJIC) Thesis: Optimization of Vector Instructions in Divergent Control Flow on Long-Vector Architectures using Active-Lane Consolidation Employment: AMD, Toronto, ON
	Braedy Kuzma (M.Sc., IBM CAS) Thesis: Compiler-Only Code Generation for Performant and Modular Matrix-Multiplication Micro Kernels Using Matrix Engines Employment: Archiact		David Pankratz (M.Sc. - UAHJIC) Thesis: Data-Driven Analysis and Design of Vulkan Ray-Tracing Applications using Automatic Instrumentation Employment: Stability AI, Toronto, ON
	Erick Ochoa (M.Sc. - IBM CAS) Thesis: Guiding Inlining Decisions Using Post-Inlining Transformations Co-Supervisor: Karim Ali Employment: Xanadu, Toronto, ON		Marcus Karpoff (M.Sc. - MITACS) Thesis: Portable Software Update: A Framework for Dynamic Software Updates in C-Language Programs Employment: Amazon, Vancouver
	Artem Chikin (M.Sc. - IBM CAS) Thesis: Compiler-Driven Performance on Heterogeneous Computing Platforms Employment: Apple Corporation, Cupertino		Taylor Lloyd (M.Sc. - IBM CAS) Thesis: Program Analysis and Compiler Transformations for Computational Accelerators Employment: Cruise, Seattle
	Juan Salamanca Guillen (Ph.D. - Unicamp - FAPESP) Cosupervisor: Guido Araujo Thesis: Thread-Level Speculation on Hardware Transactional Memory Architectures		Martin Ichilevici de Oliveira (M.Sc. - Unicamp - FAPESP) Cosupervisor: Guido Araujo Thesis: PTB: An Integrated Page, Thread and Bandwidth Allocation Approach for NUMA Architectures Employment: Eideticom, Calgary
	Marcio Machado Pereira (Ph.D. - Unicamp - SWB) Thesis: Scheduling and Serialization Techniques for Transactional Memories Employment: Post-Doctoral at Unicamp Cosupervisor: Guido Araujo		Jeeva Paudel (Ph.D. - AIF) Thesis: Optimizing Task Distribution and Shared-Variable Accesses in an Asynchronous-Partitioned-Global-Address-Space Programming Model Employment: Qualcomm (Santa Clara) GPU Compiler Team
	You Li (M.Sc. - IBM CAS Alberta AIF) Thesis: Trading Consistency for Synchronization Cost Reduction in Real-time On-Line Analytical Processing (OLAP) Systems		Matthew Gaudet (M.Sc. - IBM CAS NSERC) Thesis: Serialization Management Driven Performance in Best-Effort Hardware Transactional Memory Systems Employment: Mozilla
	Iain Ireland (M.Sc. - AIF) Thesis: SafeType: Detecting Type Violations for Type-Based Alias Analysis of C Employment: Mozilla		Michail Alvanos (Ph.D. - Barcelona Supercomputing Center) Thesis: Optimization techniques for fine-grained communication in PGAS environments Cosupervisor: Xavier Martorell , Montse Farreras Employment: XM Financial Services
	Arnamoy Bhattacharyya (M.Sc.) Thesis: Do Inputs Matter Using Data-Dependence Profiling to Evaluate Thread Level Speculation in the BlueGeneQ Employment: Qualcomm, Toronto, ON, Canada		Paul Berube (Ph.D. - NSERC) Thesis: Methodologies for May-Input Feedback-Directed Optimization Employment: Emc2
	Ricardo N. Sanchez (M.Sc. - IBM CAS) Thesis: Applying Support Vector Machines to Discover Method-Specific Compilation Strategies Cosupervisor: Duane Szafron Employment: Taghos Tecnologia		Carolina Simoes Gomes (M.Sc. - IBM CAS) Thesis: Heavyweight Pattern Mining in Attributed Flow Graphs Employment: Square, Toronto
	Xunhao Li (M.Sc.) Thesis: JiT4OpenCL A Compiler from Python to OpenCL Employment: Ethereum Classic Labs		Adam Jocksch (M.Sc. - IBM CAS) Thesis: Data Mining Flow Graphs in a Dynamic Compiler Employment: Blackberry
	Rahul Garg (M.Sc.) Thesis: Python programs on graphic processing units Employment: Google		Christopher Barton (Ph.D.) Thesis: Improving access to shared data in Partitioned Global Address Space programming model Employment: IBM Canada Software Laboratory
	Stephen Curial (M.Sc.) Thesis: Automatic Data Structure Splitting in a Production Compiler Employment: CTO at Jungle Scout		Johnny Huynh (M.Sc.) Thesis: Minimizing Address-Computation Overhead Employment: Alberta Blue Cross
	Soraya Kasnavi (M.Sc.) Thesis: Content Addressable Memory-Based Circuits for Internet Protocol Routers: A Cache and Lookup Table Cosupervisor: Vincent Gaudet Employment: Instagram, Melo Alto, CA		Shane Brewer (M.Sc.) Thesis: Applicability of Method Specialization Techniques to Java Employment: Coinbase, Issaquah, WA
	Paul Berube (M.Sc. - NSERC) Thesis: Aestimo A Feedback-Directed Optimization Evaluation Tool Employment: Dell Corporation		Peng Zhao (Ph.D.) Thesis: Code and Data Outlining Employment: Google
	Angela French (M.Sc.) Thesis: A Study of Later Phase Static Single Assignment in the Open Research Compiler Employment: Consilient Technologies Corp.		Christopher Barton (M.Sc.) Thesis: Code Transformations to Augment the Scope of Loop Fusion in a Production Compiler Employment: IBM Canada Software Laboratory

Alumni (UnderGraduate Research Students)
	Yufei Chen (B.Sc.) Summer 2022		Vedant Vyas (B.Sc.) Summer 2022
	Dhanrajbir Singh Hira (B.Sc.) Summer 2022		Rajan Maghera (B.Sc., NSERC USRA) Summer 2022
	Patrick Zijlstra (B.Sc.) Summer 2022
	Emily Vandermeer (B.Sc., NSERC USRA) Summer 2021		Jason Sommerville (B.Sc.) Summer 2021
	Giancarlo Pernudi Segura (B.Sc.) Summer 2021		Danila Seliayeu (B.Sc.) Summer 2021
	Quinn Pham (B.Sc.) Summer 2020		Noah Gergel (B.Sc.) Summer 2020
	Deric Cheung (B.Sc.) Summer 2020		Tyler Gobran (B.Sc.) Summer 2019
	Abdulrahman Alattas (B.Sc.) Summer 2019		Mehrab Mehdi Islam (B.Sc.) Summer 2019
	David Pankratz (B.Sc. - NSERC USRA) Summer 2019		Joshua Sabet (B.Sc. - NSERC USRA) Winter/Summer 2019
	Zachary Selk (B.Sc.) Summer 2019		Taylor Zowtuk (B.Sc.) Summer 2019
	Jason Cannon (B.Sc.) Summer 2018		Muhammad Usman (B.Sc.) Summer 2018
	Kristen Newbury (B.Sc.) Summer 2017		Braedy Kuzma (B.Sc.) Summer 2017
	Austin Crapo (B.Sc.) Summer 2017		Ramiro Campos (B.Sc. - Instituto Tecnologico Y de Estudios Superiores de Monterrey) Summer 2017
	Dhruv Jain (B.Sc. - Indian Institute of Technology Kharagpur) Summer 2017		Sanket Kedia (B.Sc. - Indian Institute of Technology Kharagpu) Summer 2017
	Erick Ochoa (B.Sc.) Summer, 2016		João Henrique Stange Hoffman (Undergrad - Science Without Borders) Summer, 2016
	Morgan Redshaw (B.Sc. - NSERC USRA) Summer, 2015		Dylan Ashley (B.Sc. - NSERC USRA) Summer, 2015
	Sean Baergen (B.Sc. - NSERC USRA) Summer, 2015		Marcus Karpoff (B.Sc.) Summer, 2015
	Elliot Colp (B. Sc. - NSERC USRA) Summer, 2014		Caian Benedicto (B. Sc. - Unicamp - SWB) Summer, 2014
	Calvin Beck (B. Sc.) Summer, 2014		Adarsh Chauhan (B. Sc. - IIT Kanpur - MITACS) Summer, 2014
	Diogo Renno (Undergrad - Science Without Borders - UFMG) Summer, 2013		Bruno Rosa (Undergrad - Science Without Borders - Unicamp) Summer, 2013
	George Godin Ribeiro (Undergrad - Science Without Borders - Unicamp) Summer, 2013		Taylor Lloyd (Undergrad - NSERC USRA) Summer, 2013
	Sriseshan Srikanth (Undergrad - MITACS Global Link - Indian Institute of Technology Madras) Summer, 2013

Alumni (Visiting Students)
	Rafael Cardoso Fernandes Sousa (Ph.D. - Unicamp, Brazil) Supervisor: Guido Araujo Employment: IBM Brazil

My Cooking Recipe Collection

I have a collecion of cooking recipes called From Nelson's Kitchen

A coleção também está disponível em Português com o nome Da Cozinha do Nelson.

Distinguished Visits to Alberta
Guang R. Gao University of Delaware April 09, 2002	Rajiv Gupta University of Arizona June 03, 2002	Laurie Hendren McGill University January 28, 2002
Susan Horwitz University of Wiscosin April 28, 2002	Bob Blainey IBM Toronto Laboratory March 26, 2002	Sun Chan Intel Corporation April 22, 2002
Mike Barnett Microsoft Research January 25, 2002	Yale Patt The University of Texas at Austin October 21, 2002	Kevin Stoodley IBM Toronto Laboratory April 01 2003
Barbara Ryder Rutgers University March 02, 2004	Sandhya Dwarkadas University of Rochester March 19, 2004	David Padua University of Illinois at Urbana-Champaign April 15, 2005
Saman Amarasinghe Massachusetts Institute of Technology November 20, 2006	Sid Chatterjee IBM Austin Research Laboratory April 21, 2008	Jens Palsberg University of California at Los Angeles (UCLA) September 24, 2008

• Visitor's Talks:
  
  • Kevin Stoodley, IBM Toronto Research Lab
    
    • Compilers: Still going strong after ~50 years
    • IBM Java Technology
  • Bob Blainey, IBM Toronto Research Lab
    • Java: Is it viable for High Performance Computing
    • Performance Programming with IBM pSeries Compilers
    • An (incomplete) Survey of Compiler Technology at the IBM Toronto Laboratory
• Picture Gallery:
  • A picture of the Software System Seminar Bunch (March 28 2001).
  • Distinguished Visitor: Guang R. Gao (April 09 2001).
  • Distinguished Visitor: Rajiv Gupta (June 04 2001)

I am from the Gaucho land in the State of Rio Grande do Sul in the South of Brazil . My native language is Portuguese.