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pro vyhledávání: '"Lee, Joseph K. L."'
As Deep Neural Networks (DNNs) grow in size and complexity, they often exceed the memory capacity of a single accelerator, necessitating the sharding of model parameters across multiple accelerators. Pipeline parallelism is a commonly used sharding s
Externí odkaz:
http://arxiv.org/abs/2405.18047
With the rapid increase in machine learning workloads performed on HPC systems, it is beneficial to regularly perform machine learning specific benchmarks to monitor performance and identify issues. Furthermore, as part of the Edinburgh International
Externí odkaz:
http://arxiv.org/abs/2404.10536
Autor:
Lee, Joseph K. L., Brown, Oliver T., Bull, Mark, Ruefenacht, Martin, Doerfert, Johannes, Klemm, Michael, Schulz, Martin
Most of the widely used quantum programming languages and libraries are not designed for the tightly coupled nature of hybrid quantum-classical algorithms, which run on quantum resources that are integrated on-premise with classical HPC infrastructur
Externí odkaz:
http://arxiv.org/abs/2311.03210
Funded by the UK ExCALIBUR H\&ES exascale programme, in early 2022 a RISC-V testbed for HPC was stood up to provide free access for scientific software developers to experiment with RISC-V for their workloads. Here we report on successes, challenges,
Externí odkaz:
http://arxiv.org/abs/2305.00512
Leveraging vectorisation, the ability for a CPU to apply operations to multiple elements of data concurrently, is critical for high performance workloads. However, at the time of writing, commercially available physical RISC-V hardware that provides
Externí odkaz:
http://arxiv.org/abs/2304.10324
Whilst the RISC-V Vector extension (RVV) has been ratified, at the time of writing both hardware implementations and open source software support are still limited for vectorisation on RISC-V. This is important because vectorisation is crucial to obt
Externí odkaz:
http://arxiv.org/abs/2304.10319
Autor:
Rocha, Henrique Bergallo, Del Debbio, Luigi, Jüttner, Andreas, Kitching-Morley, Ben, Lee, Joseph K. L., Portelli, Antonin, Skenderis, Kostas
There is increasing interest in the study of nonperturbative aspects of three-dimensional quantum field theories (QFT). They appear as holographic dual to theories of (strongly coupled) gravity. For instance, in Holographic Cosmology, the two-point f
Externí odkaz:
http://arxiv.org/abs/2212.09469
Autor:
Lee, Joseph K. L., Del Debbio, Luigi, Dobson, Elizabeth, Jüttner, Andreas, Kitching-Morley, Ben, Nourry, Valentin, Portelli, Antonin, Rocha, Henrique Bergallo, Skenderis, Kostas
In the holographic approach to cosmology, cosmological observables are described in terms of correlators of a three-dimensional boundary quantum field theory. As a concrete model, we study the $3D$ massless $SU(N)$ scalar matrix field theory with a $
Externí odkaz:
http://arxiv.org/abs/2202.03970
Autor:
Cossu, Guido, Del Debbio, Luigi, Juttner, Andreas, Kitching-Morley, Ben, Lee, Joseph K. L., Portelli, Antonin, Rocha, Henrique Bergallo, Skenderis, Kostas
Publikováno v:
Phys. Rev. Lett. 126, 221601 (2021)
We present a study of the IR behaviour of a three-dimensional super-renormalisable quantum field theory (QFT) consisting of a scalar field in the adjoint of $SU(N)$ with a $\varphi^4$ interaction. A bare mass is required for the theory to be massless
Externí odkaz:
http://arxiv.org/abs/2009.14768
Autor:
Del Debbio, Luigi, Dobson, Elizabeth, Jüttner, Andreas, Kitching-Morley, Ben, Lee, Joseph K. L., Nourry, Valentin, Portelli, Antonin, Rocha, Henrique Bergallo, Skenderis, Kostas
Publikováno v:
Phys. Rev. D 103, 114501 (2021)
A nonperturbative determination of the energy-momentum tensor is essential for understanding the physics of strongly coupled systems. The ability of the Wilson flow to eliminate divergent contact terms makes it a practical method for renormalizing th
Externí odkaz:
http://arxiv.org/abs/2009.14767