À l’occasion de ses 50 ans, l’IRISA accueille tout au long de l’année 2025 des experts en recherche informatique dans le cadre de sa série "Les invités du mois".
Ce mardi 27 mai, Joel Emer et Moinuddin Qureshi nous font l'honneur de venir donner une conférence sur le thème de l'architecture des ordinateurs. Leurs recherches ont influencé de nombreux produits informatiques que nous utilisons aujourd'hui.
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50yearsIRISA

IRISA has been created 50 years ago. At that time, computers were a rare, voluminous and expensive resource. Nowadays, they have become ubiquitous in our every day life. They are present very cheap appliances, our cell phones, our labtops but also in multi-millions euros supercomputers. For the general public, this technology revolution is often seen as the conjunction of extraordinary progresses in hardware integration, and the invention of new algorithms and new applications. However this revolution would not have been possible without the intermediate layers: computer architecture, operating systems, languages and compilers.

This session of the "invités du mois" will focused on computer architecture with two prestigious invitees, Joel Emer and Moinuddin Qureshi.
Computer architecture is one of the domains where the influence of research on industry has been particularly strong. Joel Emer and Moinuddin Qureshi have both academic and industrial profiles. Many products have been influenced by their research.

The PhD work from Moinuddin Qureshi (2007) has influenced the management of the caches of all the processors that have been designed during the past decade. After working at IBM research and directly participating to the design of the IBM power series memory systems, Moinuddin joined Georgia Tech as a professor. Moinuddin is one of the most prolific researchers in computer architecture, with major contributions on cache management, memory systems (both volatile and non-volatile), cache security, and quantum computing. Moinuddin, one of the pillar of computer architecture community, got the ACM Maurice Wilkes award in 2022. Professor Qureshi will present his recent work on DRAM reliability and quantum computing architecture.
Joel Emer began his PhD studies at the time IRISA was created. For the last 50 years, Joel has been a witness and a major actor in computer architecture. His contributions have been numerous all along his career at DEC on VAX, then Compaq on Alpha in the last millenium and on x86 processors at Intel in the 2000's. Joel is now working at Nvidia as well as at MIT. Among the many contributions he made, I would emphasize that he was one of the earlier proposer of the quantitative approach to processor performance evaluation, he was one of main actor in the definition of simultaneous multithreading and he was one of the first researchers to present a memory dependence predictor. His more recent work includes deep learning accelerator design and spatial and parallel architectures. Many of his contributions were published at the computer architecture research conferences. Joel's deep influence on the computer architecture research community as well as on the processor industry was recognized in 2009 by the prestigious ACM-IEEE Eckert-Mauchly award. For his contributions on new topics after the Eckert-Mauchly award, he got the 2023 IEEE B. Rau award. Joel will share his perspective on the evolution of computer architecture over the last 50 years.
Introducing Joel Emer and Moinuddin Qureshi by André Seznec, IRISA alumni