ADSP: Algorithms + Data Structures = Programs

In this episode, Conor and Bryce record live from C++ Under the Sea! We interview Ray and Paul from NVIDIA, talk about Parrot, scans and more!Link to Episode 260 on WebsiteDiscuss this episode, leave a comment, or ask a question (on GitHub)SocialsADSP: The Podcast: TwitterConor Hoekstra: Twitter | BlueSky | MastodonBryce Adelstein Lelbach: TwitterAbout the Guests:Ray is a Senior Systems Software Engineer at NVIDIA since 2022. Studied Software Engineering at the University of Amsterdam. Founded the Dutch C++ Meetup in 2013 and co-organizes C++ Under the Sea since 2023. He has been programming for more than 25 years, his journey began on his father's Panasonic CF-2700 MSX--and has been hooked ever since. He is also 'the listener' of ADSP the podcast.Paul Grosse-Bley was first introduced to parallel programming with C+MPI at a student exchange to Umeå (Sweden) in 2017 while studying Physics. In the following years he learned more about MPI, OpenMP, OpenACC, Thrust/parSTL and CUDA C++. After finishing his Master's degree in Physics at Heidelberg University (Germany) in 2021, he became a PhD candidate in Computational Science and Engineering researching the acceleration of iterative solvers in sparse linear algebra while being head-tutor for a course on GPU Algorithm Design. He learned using Thrust in 2019 shortly before learning C++ and became enamored with parallel algorithms which led to numerous answers on StackOverflow, contributions on GitHub, his NVIDIA internship in the summer of 2025 and full position starting in February of 2026.Show NotesDate Recorded: 2025-10-10Date Released: 2025-11-14NVIDIA BCM (Base Command Manager)C++11 std::ignoreC++20 std::bind_frontParrotParrot on GitHubParrot Youtube Video: 1 Problem, 7 Libraries (on the GPU)thrust::inclusive_scanSingle-pass Parallel Prefix Scan with Decoupled Look-back by Duane Merrill & Michael GarlandPrefix Sums and Their Applications by Guy BlellochParallel Prefix Sum (Scan) with CUDANVIDIA ON-Demand VideosA Faster Radix Sort ImplementationIntro Song InfoMiss You by Sarah Jansen https://soundcloud.com/sarahjansenmusicCreative Commons — Attribution 3.0 Unported — CC BY 3.0Free Download / Stream: http://bit.ly/l-miss-youMusic promoted by Audio Library

Vittorio Romeo, a C++ expert and former Bloomberg trainer, and JF Bastien, an engineer and C++ language evolution contributor, share insights from their tech journey. They discuss the integration of C++20 at Bloomberg and the challenges of corporate training. Vittorio's keynote on data-oriented design reveals the balance between concepts, while JF shares experiences from his time at major tech companies. They also explore the value of hallway conversations at conferences, critique presentation techniques, and introduce Vittorio's innovative PowerPoint add-in for better code display.

Live from Norway, two hosts dive into the fascinating world of algorithm taxonomy. They explore the distinction between serial, parallel, and cooperative algorithms, highlighting how parallel algorithms can appear sequential. Discover the importance of cooperative algorithms, where multiple threads collaborate, and learn why thinking at this level is crucial. The discussion also touches on the efficiency of high-level code and its potential to lead to exciting machine learning developments. Tune in for insights that bridge algorithms and practical programming!

In this episode, Conor and Bryce record live from Norway! They continue their chat about the replicate, scatter, gather and run length decode algorithms!Link to Episode 257 on WebsiteDiscuss this episode, leave a comment, or ask a question (on GitHub)SocialsADSP: The Podcast: TwitterConor Hoekstra: Twitter | BlueSky | MastodonBryce Adelstein Lelbach: TwitterDate Recorded: 2025-09-23Date Released: 2025-10-24thrust::gatherthrust::scatterthrust::permutation_iteratorthrust::counting_iteratorthrust::sequencethrust::transform_iteratorthrust::copy_if (stencil overload)parrot::replicate Implementationthrust::reduce_by_keycub::RunLengthDecodeC++20 std::views::takeC++20 std::views::take_whileAPL Wiki ReplicateArrayCast Episode 110: Implementing ReplicateIntro Song InfoMiss You by Sarah Jansen https://soundcloud.com/sarahjansenmusicCreative Commons — Attribution 3.0 Unported — CC BY 3.0Free Download / Stream: http://bit.ly/l-miss-youMusic promoted by Audio Library https://youtu.be/iYYxnasvfx8

In this episode, Conor and Bryce record live from Denmark! They talk about the replicate, scatter, gather and run length decode algorithms!Link to Episode 256 on WebsiteDiscuss this episode, leave a comment, or ask a question (on GitHub)SocialsADSP: The Podcast: TwitterConor Hoekstra: Twitter | BlueSky | MastodonBryce Adelstein Lelbach: TwitterDate Recorded: 2025-09-20Date Released: 2025-10-17thrust::gatherthrust::scatterthrust::permutation_iteratorthrust::counting_iteratorthrust::sequencethrust::transform_iteratorthrust::copy_if (stencil overload)parrot::replicate ImplementationJAXthrust::reduce_by_keycub::RunLengthDecodeAPL Wiki ReplicateArrayCast Episode 110: Implementing ReplicateRow-wise Softmax in TritonRow-wise Softmax in ParrotIntro Song InfoMiss You by Sarah Jansen https://soundcloud.com/sarahjansenmusicCreative Commons — Attribution 3.0 Unported — CC BY 3.0Free Download / Stream: http://bit.ly/l-miss-youMusic promoted by Audio Library https://youtu.be/iYYxnasvfx8

In this episode, Conor and Bryce record live from Denmark! They recap the C++ Copenhagen Meetup hosted by Symbion, the replicate algorithm and much more!Link to Episode 255 on WebsiteDiscuss this episode, leave a comment, or ask a question (on GitHub)SocialsADSP: The Podcast: TwitterConor Hoekstra: Twitter | BlueSky | MastodonBryce Adelstein Lelbach: TwitterDate Recorded: 2025-09-20Date Released: 2025-10-10Roku Engineering SymposiumDenmark DGX SuperpodTweet of Beer PouringAPL replicateC++98 std::copy_ifArrayCast Episode 110: Implementing ReplicateAPL Wiki Replicatethrust::copy_if (stencil overload)cub::RunLengthDecodethrust::reduce_by_keythrust::permutation_iteratorBDE LibrariesASL LibrariesEASTLIntro Song InfoMiss You by Sarah Jansen https://soundcloud.com/sarahjansenmusicCreative Commons — Attribution 3.0 Unported — CC BY 3.0Free Download / Stream: http://bit.ly/l-miss-youMusic promoted by Audio Library https://youtu.be/iYYxnasvfx8

Live from Denmark, the hosts dive into highlights from the Roku Engineering Symposium, including insights on corporate standard libraries. They compare the Polestar, Tesla, and Prius, critiquing car UIs and design quirks. Along the way, they explore Danish city populations, misadventures in train travel, and share amusing safari anecdotes. Also discussed are the challenging job market for new CS grads and Denmark's impressive podcast listenership. They wrap up with plans for a Copenhagen meetup and tech talks.

Sean Parent, a senior principal scientist at Adobe, has played a pivotal role in developing Photoshop and its mobile versions. He dives into how AI has transformed documentation processes, sharing his iterative approach to reviving old docs with AI assistance. The conversation explores Cursor's features, including user interface improvements and the challenges of freezing bugs. They also discuss the implications of model memory in workflows, the economics of different AI providers, and the desire for more integrated AI functionalities in daily tasks.

Sean Parent, a senior principal scientist at Adobe, dives into the world of Rust and AI. He shares insights from his work on a Rust-based no-code/low-code project, discussing the advantages of static typing and Rust's tooling. Sean also addresses challenges like verbose syntax and borrow-checker ergonomics. Furthermore, he explores the role of AI in coding, highlighting tools like Cursor and GPT as valuable aids for learning, while cautioning against the pitfalls of AI-generated outputs.

Sean Parent, a senior principal scientist at Adobe and co-creator of Photoshop Mobile, shares fascinating insights ahead of his keynote at C++ Under the Sea. He humorously discusses career opportunities at Adobe and the intriguing idea of AI-generated digital replicas. The conversation also dives into the evolution of software development, misconceptions about generic programming, and the potential of declarative languages, particularly in AI. Sean reflects on his diverse experiences in tech and the exciting rivalry among programming languages.