Mark Giampapa

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7ranked-venue papers

1as first author

0since 2021 · last 2010

—ORCID · none

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 4 papers		High-performance computing · 80% Parallel and multicore computing · 10% Integrated circuit design · 6%
Software engineering, system software, and programming languages 2 papers		Operating systems · 100%

Topics — the 10 heaviest of 12, each with the papers that count most for it

Topic	Weight	Papers	Last	Evidence papers
Operating systems › kernel lightweight kernel	0.2	2	2010	Experiences with a Lightweight Supercomputer Kernel: Lessons Learned from Blue Gene's CNK · SC 2010 Blue Gene system software - Designing a highly-scalable operating system: the Blue Gene/L story · SC 2006
High-performance computing supercomputing	0.1	2	2010	Experiences with a Lightweight Supercomputer Kernel: Lessons Learned from Blue Gene's CNK · SC 2010 An overview of the BlueGene/L Supercomputer · SC 2002
Operating systems › kernel kernel design	0.1	1	2010	Experiences with a Lightweight Supercomputer Kernel: Lessons Learned from Blue Gene's CNK · SC 2010
High-performance computing › scientific computing systems molecular dynamics simulation	0.1	1	2006	Molecular dynamics - Blue matter: approaching the limits of concurrency for classical molecular dynamics · SC 2006
High-performance computing n-body simulation	0.1	1	2006	Molecular dynamics - Blue matter: approaching the limits of concurrency for classical molecular dynamics · SC 2006
Parallel and multicore computing parallel algorithms	0.1	1	2006	Molecular dynamics - Blue matter: approaching the limits of concurrency for classical molecular dynamics · SC 2006
High-performance computing scientific computing systems	0.1	1	2006	Molecular dynamics - Blue matter: approaching the limits of concurrency for classical molecular dynamics · SC 2006
High-performance computing › supercomputing bluegene/l	0.0	1	2002	An overview of the BlueGene/L Supercomputer · SC 2002
Integrated circuit design system-on-chip	0.0	1	2002	An overview of the BlueGene/L Supercomputer · SC 2002
High-performance computing › supercomputing exascale computing	0.0	1	2010	Experiences with a Lightweight Supercomputer Kernel: Lessons Learned from Blue Gene's CNK · SC 2010

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

system measurement · 0.2experience report · 0.2linux port · 0.1compute node kernel · 0.1particle-mesh FFT · 0.1communicating sequential processes · 0.1system architecture design · 0.0performance scaling studies · 0.0

Year	Publication	Venue	Position
2010	Experiences with a Lightweight Supercomputer Kernel: Lessons Learned from Blue Gene's CNK abstract The Petascale era has recently been ushered in and many researchers have already turned their attention to the challenges of exascale computing. To achieve petascale computing two broad approaches for kernels were taken, a lightweight approach embodied by IBM Blue Gene's CNK, and a more fullweight approach embodied by Cray's CNL. There are strengths and weaknesses to each approach. Examining the current generation can provide insight as to what mechanisms may be needed for the exascale generation. The contributions of this paper are the experiences we had with CNK on Blue Gene/P. We demonstrate it is possible to implement a small lightweight kernel that scales well but still provides a Linux environment and functionality desired by HPC programmers. Such an approach provides the values of reproducibility, low noise, high and stable performance, reliability, and ease of effectively exploiting unique hardware features. We describe the strengths and weaknesses of this approach. Mark Giampapa, Thomas Gooding, Todd Inglett, Robert W. Wisniewski	SC	1
2008	The deep computing messaging framework: generalized scalable message passing on the blue gene/P supercomputer abstract We present the architecture of the Deep Computing Messaging Framework (DCMF), a message passing runtime designed for the Blue Gene/P machine and other HPC architectures. DCMF has been designed to easily support several programming paradigms such as the Message Passing Interface (MPI), Aggregate Remote Memory Copy Interface (ARMCI), Charm++, and others. This support is made possible as DCMF provides an application programming interface (API) with active messages and non-blocking collectives. DCMF is being open sourced and has a layered component based architecture with multiple levels of abstraction, allowing the members of the community to contribute new components to its design at the various layers. The DCMF runtime can be extended to other architectures through the development of architecture specific implementations of interface classes. The production DCMF runtime on Blue Gene/P takes advantage of the direct memory access (DMA) hardware to offload message passing work and achieve good overlap of computation and communication. We take advantage of the fact that the Blue Gene/P node is a symmetric multi-processor with four cache-coherent cores and use multi-threading to optimize the performance on the collective network. We also present a performance evaluation of the DCMF runtime on Blue Gene/P and show that it delivers performance close to hardware limits. Sameer Kumar 0001, Gábor Dózsa, Gheorghe Almási 0001, Philip Heidelberger, Dong Chen 0005, Mark Giampapa, Michael Blocksome, Ahmad Faraj, Jeff Parker, Joe Ratterman, Brian E. Smith, Charles Archer	ICS	6
2006	Molecular dynamics - Blue matter: approaching the limits of concurrency for classical molecular dynamics abstract This paper describes a novel spatial-force decomposition for N-body simulations for which we observe O(sqrt(p)) communication scaling. This has enabled Blue Matter to approach the effective limits of concurrency for molecular dynamics using particle-mesh (FFT-based) methods for handling electrostatic interactions. Using this decomposition, Blue Matter running on Blue Gene/L has achieved simulation rates in excess of 1000 time steps per second and demonstrated significant speed-ups to O(1) atom per node. Blue Matter employs a Communicating Sequential Process (CSP) style model with application communication state machines compiled to hardware interfaces. The scalability achieved has enabled methodologically rigorous biomolecular simulations on biologically interesting systems, such as membrane-bound proteins, whose time scales dwarf previous work on those systems, Major scaling improvements will require exploration of alternative algorithms for treating the long range electrostatics. Blake G. Fitch, Aleksandr Rayshubskiy, Maria Eleftheriou, T. J. Christopher Ward, Mark Giampapa, Michael Pitman, Robert S. Germain	SC	5
2006	Blue Gene system software - Designing a highly-scalable operating system: the Blue Gene/L story abstract Blue Gene/L is currently the world's fastest and most scalable supercomputer. It has demonstrated essentially linear scaling all the way to 131,072 processors in several benchmarks and real applications. The operating systems for the compute and I/O nodes of Blue Gene/L, are among the components responsible for that scalability. Compute nodes are dedicated to running application processes, whereas I/O nodes are dedicated to performing system functions. The operating systems adopted for each of these nodes reflect this separation of function. Compute nodes run a lightweight operating system called the compute node kernel. I/O nodes run a port of the Linux operating system. This paper discusses the architecture and design of this solution for Blue Gene/L in the context of the hardware characteristics that led to the design decisions. It also explains and demonstrates how those decisions are instrumental in achieving the performance and scalability for which Blue Gene/L is famous. José E. Moreira, Michael Brutman, José G. Castaños, Thomas Engelsiepen, Mark Giampapa, Thomas Gooding, Roger L. Haskin, Todd Inglett, Derek Lieber, Patrick McCarthy, Michael B. Mundy, Jeff Parker, Brian P. Wallenfelt	SC	5
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	CLUSTER	26
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	SC	36
2001	Demonstrating the scalability of a molecular dynamics application on a Petaflop computer abstract The IBM Blue Gene project has endeavored into the development of a cellular architecture computer with millions of concurrent threads of execution. One of the major challenges of this project is demonstrating that applications can successfully exploit this massive amount of parallelism. Starting from the sequential version of a well known molecular dynamics code, we developed a new application that exploits the multiple levels of parallelism in the Blue Gene cellular architecture. We perform both analytical and simulation studies of the behavior of this application when executed on a very large number of threads. As a result, we demonstrate that this class of applications can execute efficiently on a large cellular machine. George S. Almási, Calin Cascaval, José G. Castaños, Monty Denneau, Wilm E. Donath, Maria Eleftheriou, Mark Giampapa, C. T. Howard Ho, Derek Lieber, José E. Moreira, Dennis M. Newns, Marc Snir, Henry S. Warren Jr.	ICS	7