EDBT 2026 Demo / reviewers in the wild / expert

Pavlos Vranas

dblp:36/1794 · DBLP profile ↗
← Back
7ranked-venue papers
1as first author
0since 2021 · last 2018
0000-0002-8497-6283ORCID · verified

Domains — the database's venue-derived domains; a paper can count in several

Systems, architecture and hardware · 7 · 1 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer architecture, parallel and distributed computing, and storage systems
5 papers
High-performance computing · 88% Performance modeling and evaluation · 10% Integrated circuit design · 2%
Interdisciplinary, comprehensive, and emerging computing
1 paper
Computational science and engineering · 100%

Topics — the 11 heaviest of 15, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
High-performance computing › scientific computing systems
lattice quantum chromodynamics		 0.522018
Simulating the weak death of the Neutron in a femtoscale universe with near-exascale computing · SC 2018
The origin of mass · SC 2013
High-performance computing
performance optimization at scale		 0.522018
Simulating the weak death of the Neutron in a femtoscale universe with near-exascale computing · SC 2018
The origin of mass · SC 2013
High-performance computing
scientific computing systems		 0.522018
Simulating the weak death of the Neutron in a femtoscale universe with near-exascale computing · SC 2018
The origin of mass · SC 2013
High-performance computing › supercomputing
exascale computing		 0.312018
Simulating the weak death of the Neutron in a femtoscale universe with near-exascale computing · SC 2018
Performance modeling and evaluation › parallel system performance
weak scaling		 0.212013
The origin of mass · SC 2013
High-performance computing › large-scale simulation
quantum chromodynamics simulation		 0.112006
Gordon Bell finalists II - The BlueGene/L supercomputer and quantum ChromoDynamics · SC 2006
High-performance computing › supercomputing
supercomputer performance		 0.112006
Gordon Bell finalists II - The BlueGene/L supercomputer and quantum ChromoDynamics · SC 2006
High-performance computing › supercomputing
bluegene/l		 0.012002
An overview of the BlueGene/L Supercomputer · SC 2002
High-performance computing
supercomputing		 0.012002
An overview of the BlueGene/L Supercomputer · SC 2002
Integrated circuit design
system-on-chip		 0.012002
An overview of the BlueGene/L Supercomputer · SC 2002
High-performance computing
supercomputer architecture		 0.011997
QCDSP: A Teraflop Scale Massively Parallel Supercomputer · SC 1997

Methods — techniques the papers use, named apart from their topics

monte carlo simulation · 0.3lattice QCD · 0.3multigrid · 0.2domain decomposition · 0.2scaling analysis · 0.1system architecture design · 0.0performance scaling studies · 0.0custom hardware design · 0.0
YearPublicationVenuePosition
2018 Simulating the weak death of the Neutron in a femtoscale universe with near-exascale computing
Evan Berkowitz, Michael A. Clark, Arjun Singh Gambhir, Kenneth S. McElvain, Amy N. Nicholson, Enrico Rinaldi, Pavlos Vranas, André Walker-Loud, Chia-Cheng Chang, Bálint Joó, Thorsten Kurth, Konstantinos Orginos
 SC7
2013 The origin of mass
abstract
The origin of mass is one of the deepest mysteries in science. Neutrons and protons, which account for almost all visible mass in the Universe, emerged from a primordial plasma through a cataclysmic phase transition microseconds after the Big Bang. However, most mass in the Universe is invisible. The existence of dark matter, which interacts with our world so weakly that it is essentially undetectable, has been established from its galactic-scale gravitational effects. Here we describe results from the first truly physical calculations of the cosmic phase transition and a groundbreaking first-principles investigation into composite dark matter, studies impossible with previous state-of-the-art methods and resources. By inventing a powerful new algorithm, "DSDR," and implementing it effectively for contemporary supercomputers, we attain excellent strong scaling, perfect weak scaling to the LLNL BlueGene/Q two million cores, sustained speed of 7.2 petaflops, and time-to-solution speedup of more than 200 over the previous state-of-the-art.
Peter A. Boyle, Michael I. Buchoff, Norman H. Christ, Taku Izubuchi, Chulwoo Jung, Thomas C. Luu, Robert D. Mawhinney, Chris Schroeder, Ron Soltz, Pavlos Vranas, Joseph Wasem
 SC10
2006 Gordon Bell finalists II - The BlueGene/L supercomputer and quantum ChromoDynamics
abstract
We describe our methods for performing quantum chromodynamics (QCD) simulations that sustain up to 20% of the peak performance on BlueGene supercomputers. We present our methods, scaling properties, and first cutting edge results relevant to QCD. We show how this enables unprecedented computational scale that brings lattice QCD to the next generation of calculations. We present our QCD simulation that achieved 12.2 Teraflops sustained performance with perfect speedup to 32K CPU cores. Among other things, these calculations are critical for cosmology, for the heavy ion experiments at RHIC-BNL, and for the upcoming experiments at CERN-Geneva. Furthermore, we demonstrate how QCD dramatically exposes memory and network latencies inherent in any computer system and propose that QCD should be used as a new, powerful HPC benchmark. Our sustained performance demonstrates the excellent properties of the BlueGene/L system.
Pavlos Vranas, Gyan Bhanot, Matthias A. Blumrich, Dong Chen 0005, Alan Gara, Philip Heidelberger, Valentina Salapura, James C. Sexton
 SC1
2005 Early Experience with Scientific Applications on the Blue Gene/L Supercomputer
Gheorghe Almási 0001, Gyan Bhanot, Dong Chen 0005, Maria Eleftheriou, Blake G. Fitch, Alan Gara, Robert S. Germain, John A. Gunnels, Manish Gupta 0002, Philip Heidelberger, Michael Pitman, Aleksandr Rayshubskiy, James C. Sexton, Frank Suits, Pavlos Vranas, Robert Walkup, T. J. Christopher Ward, Yuriy Zhestkov, Alessandro Curioni, Wanda Andreoni, Charles Archer, José E. Moreira, Richard Loft, Henry M. Tufo, Theron Voran, Katherine Riley
 Euro-Par15
2002 Blue Gene/L, a System-On-A-Chip
abstract
Summary form only given. Large powerful networks coupled to state-of-the-art processors have traditionally dominated supercomputing. As technology advances, this approach is likely to be challenged by a more cost-effective System-On-A-Chip approach, with higher levels of system integration. The scalability of applications to architectures with tens to hundreds of thousands of processors is critical to the success of this approach. Significant progress has been made in mapping numerous compute-intensive applications, many of them grand challenges, to parallel architectures. Applications hoping to efficiently execute on future supercomputers of any architecture must be coded in a manner consistent with an enormous degree of parallelism. The BG/L program is developing a peak nominal 180 TFLOPS (360 TFLOPS for some applications) supercomputer to serve a broad range of science applications. BG/L generalizes QCDOC, the first System-On-A-Chip supercomputer that is expected in 2003. BG/L consists of 65,536 nodes, and contains five integrated networks: a 3D torus, a combining tree, a Gb Ethernet network, barrier/global interrupt network and JTAG.
George S. Almási, Daniel K. Beece, Ralph Bellofatto, Gyan Bhanot, Randy Bickford, Matthias A. Blumrich, Arthur A. Bright, José R. Brunheroto, Calin Cascaval, José G. Castaños, Luis Ceze, Paul Coteus, Siddhartha Chatterjee, Dong Chen 0005, George L.-T. Chiu, Thomas M. Cipolla, Paul Crumley, Alina Deutsch, Marc Boris Dombrowa, Wilm E. Donath, Maria Eleftheriou, Blake G. Fitch, Joseph Gagliano, Alan Gara, Robert S. Germain, Mark Giampapa, Manish Gupta 0002, Fred G. Gustavson, Shawn Hall, Ruud A. Haring, David F. Heidel, Philip Heidelberger, Lorraine M. Herger, Dirk Hoenicke, T. Jamal-Eddine, Gerard V. Kopcsay, Alphonso P. Lanzetta, Derek Lieber, M. Lu, Mark P. Mendell, Lawrence S. Mok, José E. Moreira, Ben J. Nathanson, Matthew Newton, Martin Ohmacht, Rick A. Rand, Richard D. Regan, Ramendra K. Sahoo, Alda Sanomiya, Eugen Schenfeld, Sarabjeet Singh, Peilin Song, Burkhard D. Steinmacher-Burow, Karin Strauss, Richard A. Swetz, Todd Takken, R. Brett Tremaine, Mickey Tsao, Pavlos Vranas, T. J. Christopher Ward, Michael E. Wazlowski, J. Brown, Thomas A. Liebsch, A. Schram, G. Ulsh
 CLUSTER59
2002 An overview of the BlueGene/L Supercomputer
abstract
This paper gives an overview of the BlueGene/L Supercomputer. This is a jointly funded research partnership between IBM and the Lawrence Livermore National Laboratory as part of the United States Department of Energy ASCI Advanced Architecture Research Program. Application performance and scaling studies have recently been initiated with partners at a number of academic and government institutions,including the San Diego Supercomputer Center and the California Institute of Technology. This massively parallel system of 65,536 nodes is based on a new architecture that exploits system-on-a-chip technology to deliver target peak processing power of 360 teraFLOPS (trillion floating-point operations per second). The machine is scheduled to be operational in the 2004-2005 time frame, at price/performance and power consumption/performance targets unobtainable with conventional architectures.
Narasimha R. Adiga, Gheorghe Almási 0001, George S. Almási, Yariv Aridor, Rajkishore Barik, Daniel K. Beece, Ralph Bellofatto, Gyan Bhanot, Randy Bickford, Matthias A. Blumrich, Arthur A. Bright, José R. Brunheroto, Calin Cascaval, José G. Castaños, Waiman Chan, Luis Ceze, Paul Coteus, Siddhartha Chatterjee, Dong Chen 0005, George L.-T. Chiu, Thomas M. Cipolla, Paul Crumley, K. M. Desai, Alina Deutsch, Tamar Domany, Marc Boris Dombrowa, Wilm E. Donath, Maria Eleftheriou, C. Christopher Erway, J. Esch, Blake G. Fitch, Joseph Gagliano, Alan Gara, Rahul Garg 0001, Robert S. Germain, Mark Giampapa, Balaji Gopalsamy, John A. Gunnels, Manish Gupta 0002, Fred G. Gustavson, Shawn Hall, Ruud A. Haring, David F. Heidel, Philip Heidelberger, Lorraine M. Herger, Dirk Hoenicke, R. D. Jackson, T. Jamal-Eddine, Gerard V. Kopcsay, Elie Krevat, Manish P. Kurhekar, Alphonso P. Lanzetta, Derek Lieber, L. K. Liu, M. Lu, Mark P. Mendell, A. Misra, Yosef Moatti, Lawrence S. Mok, José E. Moreira, Ben J. Nathanson, Matthew Newton, Martin Ohmacht, Adam J. Oliner, Vinayaka Pandit, R. B. Pudota, Rick A. Rand, Richard D. Regan, Bradley Rubin, Albert E. Ruehli, Silvius Vasile Rus, Ramendra K. Sahoo, Alda Sanomiya, Eugen Schenfeld, M. Sharma, Edi Shmueli, Sarabjeet Singh, Peilin Song, Vijay Srinivasan, Burkhard D. Steinmacher-Burow, Karin Strauss, Christopher W. Surovic, Richard A. Swetz, Todd Takken, R. Brett Tremaine, Mickey Tsao, Arun R. Umamaheshwaran, P. Verma, Pavlos Vranas, T. J. Christopher Ward, Michael E. Wazlowski, W. Barrett, C. Engel, B. Drehmel, B. Hilgart, D. Hill, F. Kasemkhani, David J. Krolak, Chun-Tao Li 0001, Thomas A. Liebsch, James A. Marcella, A. Muff, A. Okomo, M. Rouse, A. Schram, M. Tubbs, G. Ulsh, Charles D. Wait, J. Wittrup, Myung Bae, Kenneth A. Dockser, Lynn Kissel, Mark K. Seager, Jeffrey S. Vetter, K. Yates
 SC89
1997 QCDSP: A Teraflop Scale Massively Parallel Supercomputer
abstract
We discuss the work of the QCDSP collaboration to build an inexpensive Teraflop scale massively parallel computer suitable for computations in Quantum Chromodynamics (QCD). The computer is a collection of nodes connected in a four dimensional toroidial grid with nearest neighbor bit serial communications. A node is composed of a Texas Instruments Digital Signal Processor (DSP), memory, and a custom made communications and memory controller chip. An 8192 node computer with a peak speed of 0.4 Teraflops is being constructed at Columbia University for a cost of $1.8 Million. A 12,288-node machine with a peak speed of 0.6 Teraflops is being constructed for the RIKEN Brookhaven Research Center. Other computers have been built including a 50 Gigaflop version for Florida State University.
Dong Chen 0005, Norman H. Christ, Robert G. Edwards, George Fleming, Alan Gara, Sten Hansen, Chulwoo Jung, Adrian Kahler, Stephen Kasow, Anthony D. Kennedy, Greg Kilcup, Yu Bing Luo, Catalin Malureanu, Robert D. Mawhinney, John Parsons, Jim Sexton, ChengZhong Sui, Pavlos Vranas
 SC19