Michael Lysaght

Dr. Michael Lysaght
PhD
Computational Scientist
E-mail:
Tel: +353 1 5241608 (ext. 42)

Michael is head of the Capability Computing and Novel Architectures (CCNA) activity at ICHEC, where he supports the Irish scientific user community and Irish industry in the exploitation of leading edge CPU and ‘Accelerator/Co-processor’-based technologies. In his role he also works closely on research activity within ICHEC's CUDA Research Center, a status awarded to ICHEC by NVIDIA in 2010 and which has gained widespread recognition from industry developers and users alike.

Michael has expertise in programming for ‘forward-looking’ Novel Architectures and heterogeneous supercomputers, particularly in the domain of GPGPU computing. In collaboration with HPC experts in the UK, he is currently leading the development of the GPU-enabled version of the widely used molecular dynamics code, DL_POLY, which has been designed specifically for the exploitation of large-scale heterogeneous systems. Also in collaboration with the UK STFC’s Advanced Research Computing Group, he is leading the development of a GPU-enabled version of PFARM, a PRACE Astrophysics Community Code and one of the UK’s flagship HPC software packages. While in the latter two projects Michael has focused on porting to accelerator- based technologies, he is also currently heavily involved in petascaling the materials science code, Quantum Espresso, in collaboration with HPC experts and scientific researchers in Italy, with the aim of scaling Quantum Espresso to many more thousands of CPU cores than is currently achievable on PRACE Tier-0 supercomputers. He has expertise in using Fortran, C, MPI, OpenMP, CUDA and OpenACC.

Michael joined ICHEC after two years working in the UK as a HPC software developer as part of HECToR’s distributed Computational Science and Engineering team where he worked on re-engineering Atomic and Molecular Physics codes, targeting MPP platforms including the Cray XE6 as part of the UK-RAMP project. Prior to this he worked for three years as an EPSRC Postdoctoral Research Fellow in Theoretical Atomic Physics at Queen’s University Belfast where he pioneered the development of Time-Dependent R-Matrix Theory and associated parallel applications including the TDRM and RMT codes.

In conjunction with his role at ICHEC, Michael also leads the ‘Exploitation of HPC Tools and Techniques’ task as part of the EU’s PRACE 3IP project. He has also recently led the writing of PRACE’s Best Practice Guide for the SGI Altix ‘Stokes’ cluster.

Selected Publications & Proceedings

Book chapters:

M. A. Lysaght, L. R. Moore, L A. A. Nikolopoulos, J. S. Parker, H. W. van der Hart and K. T. Taylor, Ab initio methods for few- and many- electron atomic systems in short-pulse laser light, Quantum Dynamic Imaging: Theoretical and Numerical Methods, CRM Series in Mathematical Physics, Eds. A.D. Bandrauk and M Ivanov, (Springer) (2011)

Refereed journal articles:

2012:

M. A. Lysaght, L. R. Moore, J. S. Parker, H. W. van der Hart and K. T. Taylor, The RMT method for describing many-electron atoms in intense short laser pulses, Journal of Physics Conference Series (invited talk, peer reviewed), to be published Q2 (2012)

A. C. Brown, S. Hutchinsion, M. A. Lysaght and H W van der Hart, Interference between competing pathways in atomic harmonic generation, Physical Review Letters, 063006 (2012)

J. M. Carr, P. G. Galiatsatos, J. D. Gorfinkiel, A. G. Harvey, M. A. Lysaght, D. Madden, Z. Masin, M. Plummer, J. Tennyson and H. Varambhia, UKRmol: a low-energy electron- and positron-molecule scattering suite, The European Physical Journal D 66, 58 (2012)

2011:

L. A. Moore, M. A. Lysaght, J. S. Parker, H. W. van der Hart and K. T. Taylor, Time delay between the photoemission between the 2p and 2s subshells of neon, Physical Review A 84, 061404 (2011)

L R Moore, M A Lysaght, J. S. Parker, L. A. A. Nikolopoulos, H. W. van der Hart and K. T. Taylor, The RMT method for many-electron atomic systems in intense short-pulse laser light, Journal of Modern Optics 58, 1132 (2011)

2010:

M. A. Lysaght and H. van der Hart, Influence of excitation pulse length on a correlated two- electron wave-packet, Journal of Physics B 43, 121001 (2010)

S. Hutchinson, M. A. Lysaght and H. W. van der Hart, Choice of dipole operator gauge in time-dependent R-matrix theory, Journal of Physics B 43, 095603 (2010)

Linda Hamonou, M. A. Lysaght and H. W. van der Hart, Influence of autoionizing states on the pulse length dependence of strong-field Ne+ photoionization at 38.4 eV, Journal of Physics B 43, 045601 (2010)

2009:

M. A. Lysaght, S. Hutchinson and H. W. van der Hart, Signatures of collective electron dynamics in the angular distributions of electrons ejected during ultrashort laser pulse interactions with C+, New Journal of Physics 11, 093014 (2009)

M. A. Lysaght, P. G. Burke and H. W. van der Hart, Ultrafast probing of collective electron dynamics driven by dielectronic repulsion, Physical Review Letters 102, 193001 (2009)

M. A. Lysaght, H. W. van der Hart and P. G. Burke, Time-dependent R-matrix theory for ultrafast atomic processes, Physical Review A 79, 053411 (2009)

2008:

M. A. Lysaght, P. G. Burke and H. W. van der Hart, Ultrafast laser-driven excitation dynamics in Ne: An ab initio time-dependent R-matrix approach, Physical Review Letters 101, 253001 (2008)

H. W. van der Hart, M. A. Lysaght and P. G. Burke, Momentum distributions of electrons ejected during ultrashort laser interactions with multielectron atoms described using the R-matrix basis sets, Physical Review A 77, 065401 (2008)

2007:

H. W. van der Hart, M. A. Lysaght and P. G. Burke, Time-dependent multielectron dynamics of Ar in intense short laser pulses, Physical Review A 76, 043405 (2007)

2006:

A. Cummings, G. O'Sullivan, P. Dunne, E. Sokell, N. Murphy, J. White, P. Hayden, P. Sheridan, M. Lysaght and F. O’Reilly, A spatio-temporal study of variable composition laser- produced Sn plasmas, Journal of Physics D 39, 73 (2006)

P. Hayden, J. White, A. Cummings, P. Dunne, M. Lysaght, N. Murphy, P. Sheridan, G. O’Sullivan, Tin based laser-produced plasma source development for EUVL, Microelectronic Engineering 83, 699 (2006)

2005:

M. A. Lysaght, D. Kilbane, A. Cummings, N. Murphy, P. Dunne, G. O'Sullivan, P. van Kampen, J. T. Costello and E. T. Kennedy, 4d photoabsorption spectra of Sn II and Sn IV in the 30-65 eV region, Journal of Physics B 38, 4247 (2005)

M. A. Lysaght, D. Kilbane, N. Murphy, A. Cummings, P. Dunne and G. O'Sullivan, Opacity of neutral and low ion stages of Sn at the wavelength 13.5 nm used in extreme-ultraviolet lithography Physical Review A 72, 014502 (2005)

PRACE whitepapers:

M. Lysaght, M. Uchronski, A. Kwiecien, M. Gebarowski, P. Nash, I. Girotto and I T. Todorov, Benchmarking and Analysis of DL_POLY 4 on GPU clusters, PRACE whitepaper (2012) available at www.prace.ri.eu

A. Sunderland, S. Pickles, M. Nikolic, A. Jovic, J. Jakic, V. Slavnic, I. Girotto, P. Nash and M. Lysaght, An Analysis of FFT Performance in PRACE Application Codes, PRACE whitepaper (2012) available at www.prace.ri.eu