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Jiří Vyskočil

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Jiří Vyskočil

Jiri Vyskocil developed a GPU-accelerated generalized eigenvalue solver for the cp2k/cp2k repository, targeting large-scale matrix computations. He integrated cuSOLVER’s sygvd routine, creating a new C API and a Fortran wrapper to expose the solver within the codebase. His implementation included a size-based dispatch mechanism in Fortran, automatically selecting the GPU-accelerated path for matrices of size 64x64 or larger while retaining a safe fallback for smaller cases. Leveraging C, Fortran, and CUDA, Jiri’s work improved performance and scalability for numerical linear algebra tasks, providing a robust foundation for future GPU computing enhancements in scientific simulations.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

2Total
Bugs
0
Commits
2
Features
2
Lines of code
515
Activity Months2

Your Network

48 people

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly performance summary focusing on the cp2k/cp2k repository. Delivered targeted enhancements to enable scalable, distributed CPU/GPU workflows by adding NCCL support to CuSolverMP and introducing version-detection logic to conditionally link to NCCL or CAL depending on CuSolverMP version. These changes improve throughput, scalability, portability, and deployment flexibility for large-scale simulations.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024 was focused on delivering a GPU-accelerated generalized eigenvalue solver in cp2k/cp2k, enabling scalable large-matrix eigenvalue computations via cuSOLVER. The integration includes a new C API, a Fortran wrapper, and a size-based dispatch to switch to cuSOLVER for matrices 64x64 or larger, with a safe fallback for smaller matrices. This work lays the groundwork for continued GPU-accelerated linear algebra improvements and improved performance for large-scale simulations.

Activity

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Quality Metrics

Correctness100.0%
Maintainability80.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

CCMakeFortran

Technical Skills

C ProgrammingCMakeCUDAFortranFortran ProgrammingGPU ComputingMPINumerical Linear Algebraparallel computing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

cp2k/cp2k

Nov 2024 Feb 2026
2 Months active

Languages Used

CFortranCMake

Technical Skills

C ProgrammingCUDAFortran ProgrammingGPU ComputingMPINumerical Linear Algebra