Delyan Kalchev
Member Of The Technical Staff at Cerebras Systems
San Francisco Bay Area United States
Summary
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Rockstar🎓
Top SchoolDelyan Kalchev is a computational mathematician and Member of the Technical Staff in the San Francisco Bay Area with seven years of experience developing and analyzing finite element methods for large-scale parallel scientific computing. He specializes in discrete formulations of PDEs, least-squares and mixed finite elements, multiscale methods, and multigrid solvers, and bridges rigorous numerical analysis with efficient C++ implementation. At Cerebras and previously at Lawrence Livermore National Laboratory he focused on scalable solver design and software—contributing to the widely used mfem finite element library by extending BilinearForm integrators and assembly routines. He combines deep expertise in numerical linear algebra with growing interest in applying ML to scientific computing, particularly for stochastic modeling and adaptive methods. Delyan is increasingly engaged with industrial modeling challenges in manufacturing, aiming to help build more material- and energy-efficient production systems. His background uniquely marries theoretical analysis, high-performance code, and practical problem-solving across research and production settings.
7 years of coding experience
10 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Sofia University St. Kliment OhridskiDoctor of Philosophy - PhD, Applied Mathematics, Doctor of Philosophy - PhD, Applied Mathematics at University of Colorado BoulderApplied Mathematics, Applied Mathematics at University of Amsterdam
Github Skills (8)
finite-element-analysis10
c-language10
parallel-computing10
cprogramming-language10
scientific-computing9
hpc9
computational-science8
amr4
Programming languages (2)
Github contributions (5)
mfem/mfem
Jul 2021 - Sep 2021
Lightweight, general, scalable C++ library for finite element methods
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 reviews, 16 commits, 1 PR in 1 month
Contributions summary:Delyan primarily modified the `mfem/mfem` repository, a C++ library for finite element methods. Their contributions involved code adjustments within the `BilinearForm` class, including adding and modifying domain and boundary integrators, and the addition and adjustments of associated marker functionality. Furthermore, the user's changes focused on adapting the `Assemble` and `ComputeElementMatrices` methods to incorporate these modifications.
c-plus-plusfinitefemamrc-library
LLNL/saamge
Sep 2018 - Jun 2020
Smoothed aggregation spectral element-based algebraic multigrid
Contributions:53 commits, 1 PR, 31 pushes in 1 year 8 months
multigridspectralaggregationalgebraic
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