Jean Pourroy
Senior HPC Performance Engineer & AI Consultant MPI, GPU & Exascale Applications
Greater Lyon Area France
Summary
👤
Senior🎓
Top SchoolJean Pourroy is a Senior HPC Performance Engineer and AI consultant with nine years of focused experience optimizing MPI, GPU and exascale applications for top supercomputing centers across Europe and the Middle East. At HPE he blends deep hands‑on tuning (MPI/OpenMP/OpenACC, AMD MI300A) with customer-facing impact, resolving long‑standing application bottlenecks in codes like STAR‑CCM+, LS‑Dyna and WRF while helping close strategic engagements. He co-developed HPCAT (HPC Affinity Tracker), contributes OpenMPI improvements for Slingshot, and helped build HPE’s internal AI Confidence Stack to automate cluster deployment and benchmarking. His PhD work at ENS Paris‑Saclay produced microbenchmarks and profiling tools to characterize memory and FPU behavior, informing a practical 5‑step methodology for porting and modeling applications on energy‑optimized architectures. A mentor and site advocate, he has grown Grenoble’s HPC/AI presence within HPE and routinely hands real customer responsibilities to junior engineers to accelerate their development. Beyond raw performance, he focuses on reproducibility, sustainability and tools that make high‑end systems more trustworthy and usable.
9 years of coding experience
Ph.D. Thesis in HPC - Performance Analysis and Code Optimisation, High Performance Computing, Ph.D. Thesis in HPC - Performance Analysis and Code Optimisation, High Performance Computing at École normale supérieure Paris-SaclayBaccalauréat scientifique, Sciences de l'ingénieur, Baccalauréat scientifique, Sciences de l'ingénieur at Lycée Dominique Villars, Gap, université Aix MarseilleMaster en ingénierie, Mathématiques et informatique, Master en ingénierie, Mathématiques et informatique at Grenoble INP - EnsimagDUT Informatique, informatique, Classement promotion: 5e / 150 élèves, DUT Informatique, informatique, Classement promotion: 5e / 150 élèves at IUT d'Aix-MarseilleMaster in Innovation and Research in Informatics (MIRI), High Performance Computing (HPC), Master in Innovation and Research in Informatics (MIRI), High Performance Computing (HPC) at UPC School (Universitat Politècnica de Catalunya)
French, English, Spanish
Github Skills (33)
architectures10
futures9
solver7
sparse7
hip6
assembly6
interoperability6
quantization5
automl5
fft5
hardware5
benchmarking5
fortran5
gpgpu4
runtimes4
Programming languages (7)
Github contributions (5)
PourroyJean/performance_modelisation
Nov 2016 - Jan 2023
Sujet de thèse: Calcul Haute Performance : Caractérisation d’architectures et optimisation d’applications pour les futures générations de supercalculateurs
Contributions:4 reviews, 512 commits, 70 PRs in 6 years 3 months
architecturesperformancehautelesfutures
PourroyJean/dotfiles
Mar 2017 - Mar 2026
Contributions:78 pushes in 9 years
dotfilesconfiguration-filesconfigurationconfig
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