Search Results - "Langr, Daniel"

Evaluation Criteria for Sparse Matrix Storage Formats by Langr, Daniel, Tvrdik, Pavel

“…When authors present new storage formats for sparse matrices, they usually focus mainly on a single evaluation criterion, which is the performance of sparse…”
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Efficient parallel evaluation of block properties of sparse matrices by Ivan Šimeček, Daniel Langr

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Block Iterators for Sparse Matrices by Daniel Langr, Ivan Šimeček, Tomáš Dytrych

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Reducing the Impact of Intensive Dynamic Memory Allocations in Parallel Multi-Threaded Programs by Langr, Daniel, Kocicka, Martin

“…Frequent dynamic memory allocations (DyMAs) can significantly hinder the scalability of parallel multi-threaded programs. As the number of threads grows, DyMAs…”
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CPP11sort: A parallel quicksort based on C++ threading by Langr, Daniel, Schovánková, Klára

“…Summary A new efficient implementation of the multithreaded quicksort algorithm called CPP11sort is presented. This implementation is built exclusively upon…”
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Parallel multithreaded deduplication of data sequences in nuclear structure calculations by Langr, Daniel, Dytrych, Tomáš

“…High performance computing (HPC) applications that work with redundant sequences of data can benefit from their deduplication. We study this problem on the…”
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SU3lib: A C++ library for accurate computation of Wigner and Racah coefficients of SU(3) by Dytrych, Tomáš, Langr, Daniel, Draayer, Jerry P., Launey, Kristina D., Gazda, Daniel

“…We present the C++ library SU3lib for accurate computation of SU(3) Wigner coupling and Racah recoupling coefficients. It is built on the efficient…”
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Efficient algorithm for representations of U(3) in U(N) by Langr, Daniel, Dytrych, Tomáš, Draayer, Jerry P., Launey, Kristina D., Tvrdík, Pavel

“…An efficient algorithm for enumerating representations of U(3) that occur in a representation of the unitary group U(N) is introduced. The algorithm is…”
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Uncertainty quantification of collective nuclear observables from the chiral potential parametrization by Becker, Kevin S, Launey, Kristina D, Ekström, Andreas, Dytrych, Tomáš, Langr, Daniel, Sargsyan, Grigor H, Draayer, Jerry P

“…Abstract We perform an uncertainty estimate of quadrupole moments and B(E2) transition rates that inform nuclear collectivity. In particular, we study the…”
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Coupling and recoupling coefficients for Wigner’s U(4) supermultiplet symmetry by Dang, Phong, Draayer, Jerry P., Pan, Feng, Dytrych, Tomáš, Langr, Daniel, Kekejian, David, Becker, Kevin S., Thompson, Noah

“…A novel procedure for evaluating Wigner coupling coefficients and Racah recoupling coefficients for U(4) in two group–subgroup chains is presented. The…”
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Accelerating many-nucleon basis generation for high performance computing enabled ab initio nuclear structure studies by Langr, Daniel, Dytrych, Tomáš, Launey, Kristina D, Draayer, Jerry P

“…We present the problem of generating a many-nucleon basis in SU ( 3 ) -scheme for ab initio nuclear structure calculations in a symmetry-adapted no-core shell…”
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A new parallel and GPU version of a TREOR-based algorithm for indexing powder diffraction data by Šimeček, Ivan, Rohlíček, Jan, Zahradnický, Tomáš, Langr, Daniel

“…One of the key parts of the crystal structure solution process from powder diffraction data is indexing – the determination of the lattice parameters from…”
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Downsampling Algorithms for Large Sparse Matrices by Langr, Daniel, Tvrdík, Pavel, Šimeček, Ivan, Dytrych, Tomáš

“…Mapping of sparse matrices to processors of a parallel system may have a significant impact on the development of sparse-matrix algorithms and, in effect, to…”
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On Memory Footprints of Partitioned Sparse Matrices by Langr, Daniel

“…Annals of Computer Science and Information Systems, Volume 11, 2017 Runtime characteristics of sparse matrix computations and related processes may be often…”
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On memory footprints of partitioned sparse matrices by Langr, Daniel, Simecek, Ivan

“…The presented study analyses 563 representative benchmark sparse matrices with respect to their partitioning into uniformly-sized blocks. The aim is to…”
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Coupling and Recoupling Coefficients for Wigner's U(4) Supermultiplet Symmetry by Dang, Phong, Draayer, Jerry P, Pan, Feng, Dytrych, Tomas, Langr, Daniel, Kekejian, David, Becker, Kevin S, Thompson, and Noah

“…A novel procedure for evaluating Wigner coupling coefficients and Racah recoupling coefficients for U(4) in two group-subgroup chains is presented. The…”
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Uncertainty Quantification of Collective Nuclear Observables From the Chiral Potential Parametrization by Becker, Kevin S, Launey, Kristina D, Ekström, Andreas, Dytrych, Tomáš, Langr, Daniel, Sargsyan, Grigor H, Draayer, Jerry P

“…We perform an uncertainty estimate of quadrupole moments and B(E2) transition rates that inform nuclear collectivity. In particular, we study the low-lying…”
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Efficient parallel evaluation of block properties of sparse matrices by Simecek, Ivan, Langr, Daniel

“…Many storage formats for sparse matrices have been developed. Majority of these formats can be parametrized, so the algorithm for finding optimal parameters is…”
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Understanding the Effect of Chiral NN Parametrization on Nuclear Shapes From an Ab Initio Perspective by Becker, Kevin S, Launey, Kristina D, Ekström, Andreas, Sargsyan, Grigor H, Mumma, Darin C, Dytrych, Tomáš, Langr, Daniel, Draayer, Jerry P

“…The ab initio symmetry-adapted no-core shell model naturally describes nuclear deformation and collectivity, and is therefore well-suited to studying the…”
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Block iterators for sparse matrices by Langr, Daniel, Simecek, Ivan, Dytrych, Tomas

“…Finding an optimal block size for a given sparse matrix forms an important problem for storage formats that partition matrices into uniformly-sized blocks…”
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