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Polarized Galactic foregrounds are one of the primary sources of systematic error in measurements of the B-mode polarization of the Cosmic Microwave Background (CMB). Experiments are becoming increasingly sensitive to complexities in the…

Cosmology and Nongalactic Astrophysics · Physics 2018-11-13 Brandon S. Hensley , Philip Bull

We present a demonstration of the in-flight polarization angle calibration for the JAXA/ISAS second strategic large class mission, LiteBIRD, and estimate its impact on the measurement of the tensor-to-scalar ratio parameter, r, using…

Population balance equation (PBE) models have potential to automate many engineering processes with far-reaching implications. In the pharmaceutical sector, crystallization model-based design can contribute to shortening excessive drug…

Computational Engineering, Finance, and Science · Computer Science 2024-11-04 Mohammed Alsubeihi , Arthur Jessop , Ben Moseley , Cláudio P. Fonte , Ashwin Kumar Rajagopalan

We introduce jaxFMM, an open-source, adaptive, highly parallel point-charge Fast Multipole Method implementation for the Laplace kernel written in JAX. It is based on a non-uniform refinement strategy, which results in extremely concise and…

Computational Physics · Physics 2025-11-20 Robert Kraft , Florian Bruckner , Dieter Suess , Claas Abert

LiteBIRD is a planned JAXA-led CMB B-mode satellite experiment aiming for launch in the late 2020s, with a primary goal of detecting the imprint of primordial inflationary gravitational waves. Its current baseline focal-plane configuration…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-16 U. Fuskeland , J. Aumont , R. Aurlien , C. Baccigalupi , A. J. Banday , H. K. Eriksen , J. Errard , R. T. Génova-Santos , T. Hasebe , J. Hubmayr , H. Imada , N. Krachmalnicoff , L. Lamagna , G. Pisano , D. Poletti , M. Remazeilles , K. L. Thompson , L. Vacher , I. K. Wehus , S. Azzoni , M. Ballardini , R. B. Barreiro , N. Bartolo , A. Basyrov , D. Beck , M. Bersanelli , M. Bortolami , M. Brilenkov , E. Calabrese , A. Carones , F. J. Casas , K. Cheung , J. Chluba , S. E. Clark , L. Clermont , F. Columbro , A. Coppolecchia , G. D'Alessandro , P. de Bernardis , T. de Haan , E. de la Hoz , M. De Petris , S. Della Torre , P. Diego-Palazuelos , F. Finelli , C. Franceschet , G. Galloni , M. Galloway , M. Gerbino , M. Gervasi , T. Ghigna , S. Giardiello , E. Gjerløw , A. Gruppuso , P. Hargrave , M. Hattori , M. Hazumi , L. T. Hergt , D. Herman , D. Herranz , E. Hivon , T. D. Hoang , K. Kohri , M. Lattanzi , A. T. Lee , C. Leloup , F. Levrier , A. I. Lonappan , G. Luzzi , B. Maffei , E. Martínez-González , S. Masi , S. Matarrese , T. Matsumura , M. Migliaccio , L. Montier , G. Morgante , B. Mot , L. Mousset , R. Nagata , T. Namikawa , F. Nati , P. Natoli , S. Nerval , A. Novelli , L. Pagano , A. Paiella , D. Paoletti , G. Pascual-Cisneros , G. Patanchon , V. Pelgrims , F. Piacentini , G. Piccirilli , G. Polenta , G. Puglisi , N. Raffuzzi , A. Ritacco , J. A. Rubino-Martin , G. Savini , D. Scott , Y. Sekimoto , M. Shiraishi , G. Signorelli , S. L. Stever , N. Stutzer , R. M. Sullivan , H. Takakura , L. Terenzi , H. Thommesen , M. Tristram , M. Tsuji , P. Vielva , J. Weller , B. Westbrook , G. Weymann-Despres , E. J. Wollack , M. Zannoni

This study presents a reconstruction of the Gaussian Beam Tracing solution using CUDA, with a particular focus on the utilisation of GPU acceleration as a means of overcoming the performance limitations of traditional CPU algorithms in…

Performance · Computer Science 2025-01-24 Zhang Sheng , Lishu Duan , Hanbo Jiang

This paper presents a GPU-accelerated computational framework for reconstructing high resolution (HR) LF images under a mixed Gaussian-Impulse noise condition. The main focus is on developing a high-performance approach considering…

Image and Video Processing · Electrical Eng. & Systems 2022-06-13 Trung-Hieu Tran , Kaicong Sun , Sven Simon

In this paper we implemented the algorithm we developed in [1] called 3DPIFCM in a parallel environment by using CUDA on a GPU. In our previous work we introduced 3DPIFCM which performs segmentation of images in noisy conditions and uses…

Computer Vision and Pattern Recognition · Computer Science 2020-02-07 Arie Agranonik , Maya Herman , Mark Last

Component separation is the process with which emission sources in astrophysical maps are generally extracted by taking multi-frequency information into account. It is crucial to develop more reliable methods for component separation for…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-19 J. M. Casas , L. Bonavera , J. González-Nuevo , C. Baccigalupi , M. M. Cueli , D. Crespo , E. Goitia , J. D. Santos , M. L. Sánchez , F. J. de Cos

In the era of pre-trained models, image clustering task is usually addressed by two relevant stages: a) to produce features from pre-trained vision models; and b) to find clusters from the pre-trained features. However, these two stages are…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 W. He , Z. Huang , X. Meng , X. Qi , R. Xiao , C. -G. Li

We evaluate the expected level of foreground contamination to the cosmic microwave background (CMB) polarised radiation, focusing on the diffuse emission from our own Galaxy. In particular, we perform a first attempt to simulate an all sky…

Astrophysics · Physics 2015-06-24 Carlo Baccigalupi

We present a data analysis pipeline for CMB polarization experiments, running from multi-frequency maps to the power spectra. We focus mainly on component separation and, for the first time, we work out the covariance matrix accounting for…

Cosmology and Nongalactic Astrophysics · Physics 2010-06-14 S. Ricciardi , A. Bonaldi , P. Natoli , G. Polenta , C. Baccigalupi , E. Salerno , K. Kayabol , L. Bedini , G. De Zotti

High-performance GPU-accelerated particle filter methods are critical for object detection applications, ranging from autonomous driving, robot localization, to time-series prediction. In this work, we investigate the design, development…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-08-03 Gabin Schieffer , Nattawat Pornthisan , Daniel Araújo de Medeiros , Stefano Markidis , Jacob Wahlgren , Ivy Peng

We present computational performance comparisons of gas-solid simulations performed on current CPU and GPU architectures using MFiX Exa, a CFD-DEM solver that leverages hybrid CPU+GPU parallelism. A representative fluidized bed simulation…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-08-20 Shandong Lao , Aaron Holt , Deepthi Vaidhynathan , Hariswaran Sitaraman , Christine M. Hrenya , Thomas Hauser

In this paper, we present a GPU-accelerated prototype implementation of a portable ultrasound imaging pipeline on an Nvidia CLARA AGX development kit. The raw data is acquired with nonsteered plane wave transmit using a programmable…

Medical Physics · Physics 2024-10-03 V. Arun Kumar , A. N. Madhavanunni , Mahesh Raveendranatha Panicker

We present GANDALF, a JAX-based spectral solver for Kinetic Reduced MHD (KRMHD) turbulence designed to lower infrastructure barriers to plasma turbulence research. Existing production codes require specialized HPC infrastructure and…

Plasma Physics · Physics 2025-12-01 Anjor Kanekar

Characterizing the polarized dust emission from our Galaxy will be decisive for the quest for the Cosmic Microwave Background (CMB) primordial $B$-modes. The incomplete modelling of its potentially complex spectral properties could lead to…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-16 L. Vacher , J. Aumont , L. Montier , S. Azzoni , F. Boulanger , M. Remazeilles

In this paper we present a novel implementation of Bayesian CMB component separation. We sample from the full posterior distribution using the No-U-Turn Sampler (NUTS), a gradient-based sampling algorithm. Alongside this, we introduce new…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-19 R. D. P. Grumitt , Luke R. P. Jew , C. Dickinson

Scene understanding based on image segmentation is a crucial component of autonomous vehicles. Pixel-wise semantic segmentation of RGB images can be advanced by exploiting complementary features from the supplementary modality (X-modality).…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Jiaming Zhang , Huayao Liu , Kailun Yang , Xinxin Hu , Ruiping Liu , Rainer Stiefelhagen

The conductor-like polarization model (C-PCM) with switching/Gaussian smooth discretization is a widely used implicit solvation model in chemical simulations. However, its application in quantum mechanical calculations of large-scale…

Chemical Physics · Physics 2015-07-03 Fang Liu , Nathan Luehr , Heather J. Kulik , Todd J. Martínez
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