Browsing Institutt for informatikk by Author "Cai, Xing"
Now showing items 1-11 of 11
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Telle, Åshild; Trotter, James David; Cai, Xing; Finsberg, Henrik Nicolay Topnes; Kuchta, Miroslav; Sundnes, Joakim; Wall, Samuel Thomas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract Cardiomyocytes are the functional building blocks of the heart—yet most models developed to simulate cardiac mechanics do not represent the individual cells and their surrounding matrix. Instead, they work on a ...
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Sæternes, Erik Hide; Thune, Andreas; Rustad, Alf Birger; Skeie, Tor; Cai, Xing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)Computer simulations of complex physical processes typically require sophisticated numerical schemes that internally involve many parameters. Different choices of such internal numerical parameters may lead to considerably ...
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Jæger, Karoline Horgmo; Hustad, Kristian Gregorius; Cai, Xing; Tveito, Aslak (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)The EMI model represents excitable cells in a more accurate manner than traditional homogenized models at the price of increased computational complexity. The increased complexity of solving the EMI model stems from a ...
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Burchard, Luk Bjarne; Hustad, Kristian Gregorius; Langguth, Johannes; Cai, Xing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)A new trend in processor architecture design is the packaging of thousands of small processor cores into a single device, where there is no device-level shared memory but each core has its own local memory. Thus, both the ...
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Burchard, Luk; Cai, Xing; Langguth, Johannes (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2021)Parallel graph algorithms have become one of the principal applications of high-performance computing besides numerical simulations and machine learning workloads. However, due to their highly unstructured nature, graph ...
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Trotter, James David; Cai, Xing; Funke, Simon Wolfgang (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Motivated by the wish to understand the achievable performance of finite element assembly on unstructured computational meshes, we dissect the standard cellwise assembly algorithm into four kernels, two of which are dominated ...
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Thune, Andreas; Cai, Xing; Rustad, Alf B. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Parallel computations have become standard practice for simulating the complicated multi-phase flow in a petroleum reservoir. Increasingly sophisticated numerical techniques have been developed in this context. During the ...
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Su, Huayou; Wu, Nan; Wen, Mei; Zhang, Chunyuan; Cai, Xing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)Aiming to understand how high-performance CUDA programming can be done for NVIDIA's new Kepler architecture, we have investigated a specific case of simulating sediment transport. The arisen stencil computations have ...
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Lagraviere, Jeremie Alexandre Emilien; Langguth, Johannes; Prugger, Martina; Einkemmer, Lukas; Ha, Hoai Phuong; Cai, Xing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)The Unified Parallel C (UPC) programming language offers parallelism via logically partitioned shared memory, which typically spans physically disjoint memory subsystems. One convenient feature of UPC is its ability to ...
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Hustad, Kristian Gregorius; Cai, Xing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)A central component in simulating cardiac electrophysiology is the numerical solution of nonlinear ordinary differential equations, also called cardiac ionic cell models, that describe cross-cell-membrane ion transport. ...
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Trotter, James David; Langguth, Johannes; Cai, Xing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)This paper studies the use of automated code generation to provide user-friendly GPU acceleration for solving partial differential equations (PDEs) with finite element methods. By extending the FEniCS framework and its ...