Zobrazeno 1 - 10
of 1 348
pro vyhledávání: '"Ltaief, A."'
This paper explores the performance optimization of out-of-core (OOC) Cholesky factorization on shared-memory systems equipped with multiple GPUs. We employ fine-grained computational tasks to expose concurrency while creating opportunities to overla
Externí odkaz:
http://arxiv.org/abs/2410.09819
Autor:
Ltaief, Hatem, Alomairy, Rabab, Cao, Qinglei, Ren, Jie, Slim, Lotfi, Kurth, Thorsten, Dorschner, Benedikt, Bougouffa, Salim, Abdelkhalak, Rached, Keyes, David E.
We exploit the widening margin in tensor-core performance between [FP64/FP32/FP16/INT8,FP64/FP32/FP16/FP8/INT8] on NVIDIA [Ampere,Hopper] GPUs to boost the performance of output accuracy-preserving mixed-precision computation of Genome-Wide Associati
Externí odkaz:
http://arxiv.org/abs/2409.01712
Autor:
Abdulah, Sameh, Baker, Allison H., Bosilca, George, Cao, Qinglei, Castruccio, Stefano, Genton, Marc G., Keyes, David E., Khalid, Zubair, Ltaief, Hatem, Song, Yan, Stenchikov, Georgiy L., Sun, Ying
We present the design and scalable implementation of an exascale climate emulator for addressing the escalating computational and storage requirements of high-resolution Earth System Model simulations. We utilize the spherical harmonic transform to s
Externí odkaz:
http://arxiv.org/abs/2408.04440
Autor:
De, S., Mandal, S., Sen, Sanket, Sen, Arnab, Gopal, R., Ltaief, L. Ben, Turchini, S., Catone, D., Zema, N., Coreno, M., Richter, R., Mudrich, M., Sharma, V., Krishnan, S. R.
The three-body dissociation dynamics of the dicationic camphor molecule (C$_{10}$H$_{16}$O$^{2+}$) resulting from Auger decay are investigated using soft X-ray synchrotron radiation. A photoelectron-photoion-photoion coincidence (PEPIPICO) method, a
Externí odkaz:
http://arxiv.org/abs/2406.08502
Autor:
Zhang, Xiran, Abdulah, Sameh, Cao, Jian, Ltaief, Hatem, Sun, Ying, Genton, Marc G., Keyes, David E.
Addressing the statistical challenge of computing the multivariate normal (MVN) probability in high dimensions holds significant potential for enhancing various applications. One common way to compute high-dimensional MVN probabilities is the Separat
Externí odkaz:
http://arxiv.org/abs/2405.14892
Gaussian processes (GPs) are commonly used for geospatial analysis, but they suffer from high computational complexity when dealing with massive data. For instance, the log-likelihood function required in estimating the statistical model parameters f
Externí odkaz:
http://arxiv.org/abs/2403.07412
Autor:
De, S., Abid, A. R., Asmussen, J. D., Ltaief, L. Ben, Sishodia, K., Ulmer, A., Pedersen, H. B., Krishnan, S. R., Mudrich, M.
Helium nanodroplets ("HNDs") are widely used for forming tailor-made clusters and molecular complexes in a cold, transparent, and weakly-interacting matrix. Characterization of embedded species by mass spectrometry is often complicated by fragmentati
Externí odkaz:
http://arxiv.org/abs/2401.06527
Autor:
Abdulah, Sameh, Ejarque, Jorge, Marzouk, Omar, Ltaief, Hatem, Sun, Ying, Genton, Marc G., Badia, Rosa M., Keyes, David E.
HPC-based applications often have complex workflows with many software dependencies that hinder their portability on contemporary HPC architectures. In addition, these applications often require extraordinary efforts to deploy and execute at performa
Externí odkaz:
http://arxiv.org/abs/2312.07748
Autor:
Bastian, B., Asmussen, J. D., Ltaief, L. Ben, Pedersen, H. B., Sishodia, K., De, S., Krishnan, S. R., Medina, C., Pal, N., Richter, R., Sisourat, N., Mudrich, M.
Interatomic Coulombic decay (ICD) plays a crucial role in weakly bound complexes exposed to intense or high-energy radiation. So far, neutral or ionic atoms or molecules have been prepared in singly excited electron or hole states which can transfer
Externí odkaz:
http://arxiv.org/abs/2310.15835
Autor:
Ltaief, L. Ben, Sishodia, K., Richter, R., Bastian, B., Asmussen, J. D., Mandal, S., Pal, N., Medina, C., Krishnan, S. R., von Haeften, K., Mudrich, M.
Interatomic Coulombic decay (ICD) processes play a crucial role in weakly bound complexes exposed to intense or high-energy radiation. Using large helium nanodroplets, we demonstrate that ICD is efficient even when the droplets are irradiated by weak
Externí odkaz:
http://arxiv.org/abs/2308.14674