[Dottorcomp] Seminari di Matematica Applicata, 26/05/2026, Pratik Nayak, Emanuele Dolera

[Stefano Lisini]

Seminari di Matematica Applicata, Dipartimento di Matematica "F. Casorati"
e Istituto del CNR IMATI "E. Magenes" di Pavia.

Martedì 26 Maggio 2026, alle ore 14 precise, presso l'aula Beltrami del
Dipartimento di Matematica dell'Università di Pavia,

Pratik Nayak (Technical University of Munich)

terrà un seminario dal titolo:

Composable software for distributed GPU linear algebra

e alle ore 15,00 precise

Emanuele Dolera (Università di Pavia)terrà un seminario dal titolo:

Sharp Uniform-in-Time Propagation of Chaos for the Kac model of a
Maxwellian gas.

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Abstract (Nayak): Modern simulation codes increasingly demand linear
solvers that are simultaneously distributed, GPU-resident, and flexible
enough to mix and match algorithmic components. In this talk, we argue that
composability, the design choice that lets any linear operator play any
role, whether as a solver, preconditioner, smoother, or coarse solver, is
what makes this tractable in practice.
We will illustrate this through Ginkgo, an open-source linear algebra
library built around a uniform LinOp abstraction. After motivating the
composability thesis, we will walk through Ginkgo’s distributed
functionality: on-device assembly of distributed matrices, GPU-aware sparse
matrix–vector products with neighborhood communicators that reduce MPI
overhead at scale, and a preconditioner suite, including block-Jacobi,
ISAI, Schwarz, algebraic multigrid, and BDDC that all share the same
composable interface. We will close with a brief look at applying these
tools to large-scale cardiac electrophysiology simulations.
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Link Abstract (Dolera).
<https://matematica.unipv.it/events/sharp-uniform-in-time-propagation-of-chaos-for-the-kac-model-of-a-maxwellian-gas/?occurrence=2026-05-26>

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Pagina web Seminari di Matematica Applicata
https://matematica.unipv.it/ricerca/cicli-di-seminari/seminari-di-matematica-applicata/