Search Results - "Alappat, Christie"

Multiway p-spectral graph cuts on Grassmann manifolds by Pasadakis, Dimosthenis, Alappat, Christie Louis, Schenk, Olaf, Wellein, Gerhard

“…Nonlinear reformulations of the spectral clustering method have gained a lot of recent attention due to their increased numerical benefits and their solid…”
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YaskSite: Stencil Optimization Techniques Applied to Explicit ODE Methods on Modern Architectures by Alappat, Christie L., Seiferth, Johannes, Hager, Georg, Korch, Matthias, Rauber, Thomas, Wellein, Gerhard

“…The landscape of multi-core architectures is growing more complex and diverse. Optimal application performance tuning parameters can vary widely across CPUs,…”
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Level-Based Blocking for Sparse Matrices: Sparse Matrix-Power-Vector Multiplication by Alappat, Christie, Hager, Georg, Schenk, Olaf, Wellein, Gerhard

“…The multiplication of a sparse matrix with a dense vector (SpMV) is a key component in many numerical schemes and its performance is known to be severely…”
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Performance Modeling of Streaming Kernels and Sparse Matrix-Vector Multiplication on A64FX by Alappat, Christie, Laukemann, Jan, Gruber, Thomas, Hager, Georg, Wellein, Gerhard, Meyer, Nils, Wettig, Tilo

“…The A64FX CPU powers the current #1 supercomputer on the Top500 list. Although it is a traditional cache-based multicore processor, its peak performance and…”
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Algebraic temporal blocking for sparse iterative solvers on multi-core CPUs by Alappat, Christie, Thies, Jonas, Hager, Georg, Fehske, Holger, Wellein, Gerhard

“…Sparse linear iterative solvers are essential for many large-scale simulations. Much of the runtime of these solvers is often spent in the implicit evaluation…”
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Execution‐Cache‐Memory modeling and performance tuning of sparse matrix‐vector multiplication and Lattice quantum chromodynamics on A64FX by Alappat, Christie, Meyer, Nils, Laukemann, Jan, Gruber, Thomas, Hager, Georg, Wellein, Gerhard, Wettig, Tilo

“…The A64FX CPU is arguably the most powerful Arm‐based processor design to date. Although it is a traditional cache‐based multicore processor, its peak…”
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Bridging the Architecture Gap: Abstracting Performance-Relevant Properties of Modern Server Processors

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Algebraic Temporal Blocking for Sparse Iterative Solvers on Multi-Core CPUs by Alappat, Christie, Thies, Jonas, Hager, Georg, Fehske, Holger, Wellein, Gerhard

“…Sparse linear iterative solvers are essential for many large-scale simulations. Much of the runtime of these solvers is often spent in the implicit evaluation…”
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Cache Blocking of Distributed-Memory Parallel Matrix Power Kernels by Lacey, Dane C, Alappat, Christie L, Lange, Florian, Hager, Georg, Fehske, Holger, Wellein, Gerhard

“…Sparse matrix-vector products (SpMVs) are a bottleneck in many scientific codes. Due to the heavy strain on the main memory interface from loading the sparse…”
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Code Generation and Performance Engineering for Matrix-Free Finite Element Methods on Hybrid Tetrahedral Grids by Böhm, Fabian, Bauer, Daniel, Kohl, Nils, Alappat, Christie, Thönnes, Dominik, Mohr, Marcus, Köstler, Harald, Rüde, Ulrich

“…This paper introduces a code generator designed for node-level optimized, extreme-scalable, matrix-free finite element operators on hybrid tetrahedral grids…”
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Level-based Blocking for Sparse Matrices: Sparse Matrix-Power-Vector Multiplication by Alappat, Christie L, Hager, Georg, Schenk, Olaf, Wellein, Gerhard

“…The multiplication of a sparse matrix with a dense vector (SpMV) is a key component in many numerical schemes and its performance is known to be severely…”
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Multiway $p$-spectral graph cuts on Grassmann manifolds by Pasadakis, Dimosthenis, Alappat, Christie Louis, Schenk, Olaf, Wellein, Gerhard

“…Mach Learn (2021) Nonlinear reformulations of the spectral clustering method have gained a lot of recent attention due to their increased numerical benefits…”
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ECM modeling and performance tuning of SpMV and Lattice QCD on A64FX by Alappat, Christie, Meyer, Nils, Laukemann, Jan, Gruber, Thomas, Hager, Georg, Wellein, Gerhard, Wettig, Tilo

“…The A64FX CPU is arguably the most powerful Arm-based processor design to date. Although it is a traditional cache-based multicore processor, its peak…”
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Performance Modeling of Streaming Kernels and Sparse Matrix-Vector Multiplication on A64FX by Alappat, Christie L, Laukemann, Jan, Gruber, Thomas, Hager, Georg, Wellein, Gerhard, Meyer, Nils, Wettig, Tilo

“…The A64FX CPU powers the current number one supercomputer on the Top500 list. Although it is a traditional cache-based multicore processor, its peak…”
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Understanding HPC Benchmark Performance on Intel Broadwell and Cascade Lake Processors by Alappat, Christie L, Hofmann, Johannes, Hager, Georg, Fehske, Holger, Bishop, Alan R, Wellein, Gerhard

“…Hardware platforms in high performance computing are constantly getting more complex to handle even when considering multicore CPUs alone. Numerous features…”
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Bridging the Architecture Gap: Abstracting Performance-Relevant Properties of Modern Server Processors by Hofmann, Johannes, Alappat, Christie L, Hager, Georg, Fey, Dietmar, Wellein, Gerhard

“…We describe a universal modeling approach for predicting single- and multicore runtime of steady-state loops on server processors. To this end we strictly…”
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A Recursive Algebraic Coloring Technique for Hardware-Efficient Symmetric Sparse Matrix-Vector Multiplication by Alappat, Christie L, Hager, Georg, Schenk, Olaf, Thies, Jonas, Basermann, Achim, Bishop, Alan R, Fehske, Holger, Wellein, Gerhard

“…The symmetric sparse matrix-vector multiplication (SymmSpMV) is an important building block for many numerical linear algebra kernel operations or graph…”
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