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CRAY RESEARCH DEMONSTRATES 10 GFLOPS ON PRODUCTION-SCALE 3-D SEISMIC MIGRATION PROGRAMS AT PARIS PETROLEUM SHOW

CRAY RESEARCH DEMONSTRATES 10 GFLOPS ON PRODUCTION-SCALE 3-D SEISMIC
 MIGRATION PROGRAMS AT PARIS PETROLEUM SHOW
 Cray and Digital Also Jointly Show First
 Live CRAY Y-MP EL At Industry Exposition
 PARIS, June 2 /PRNewswire/ -- Through an international network linked to a CRAY Y-MP C90 supercomputer located in the United States, Cray Research (NYSE: CYR) this week showed attendees of the European Association of Exploration Geophysicists (EAEG) Technical Exposition, held here, the value of using Cray Research technology for three- dimensional seismic migration -- consistent and easily achievable speed on production-size data sets.
 The company demonstrated sustained 6, 8 and 10 gigaflops (one billion floating-point operations per second) performance on three popular 3-D post- and pre-stack seismic migration codes. These codes are used for processing and analyzing field data to image the earth's subsurface for the purpose of more easily and readily locating oil. This application is the most important computer problem for geophysicists and petroleum engineers. Users can easily run their code on the more parallel CRAY Y-MP C90 system with little or no reprogramming.
 The CRAY Y-MP C90 system is the company's new top-of-the-line supercomputer unveiled last Nov. and is the most powerful general- purpose computer system in the world today. With 16 central processing units (CPUs), this system is also
the most parallel scalar/vector system available today. The CRAY Y-MP C90 system, fully compatible with the company's broad CRAY Y-MP product line, features an all-new CPU with a peak performance of one billion floating-point operations per second (gigaflops). With 16 of these powerful CPUs and 256 megawords (2 gigabytes) of central memory, the CRAY Y-MP C90 system has a peak
performance of 16 gigaflops. On actual customer problems, this high- end system operates at approximately four to six times the speed of Cray Research's previous fastest supercomputers.
 The production-scale problems demonstrated at the Paris show involved segments of land approximately 10 by 10 kilometers and five kilometers deep, as well as 15 by 7.5 kilometers and three kilometers deep. The codes demonstrated were: GEOSYS by GECO-PRAKLA, a 3-D, post- stacked seismic depth migration code, which ran in excess of 10 gigaflops; a Cray Research-written code (currently unnamed) for 3-D, Kirchhoff, pre-stack migration analysis, which ran in excess of eight gigaflops; and the Split Step Fourier 3-D depth migration code written by Paul Stoffa, professor of geological sciences at the University of Texas (UT), called SP3D, which ran in excess of six gigaflops.
 "The architecture and performance of the new C90 has a great impact on getting these large computational problems done quickly, which helps us better understand complex geology," said Stoffa, who is also associate director of the Institute of Geophysics at UT. "These kinds of seismic calculations are highly parallel, and as such they can take advantage of the parallel architecture of the CRAY Y-MP C90. For years geophysicists have done seismic time migration, but seismic depth migration is even more important because it extrapolates the sonograms taken in the field into an image of the earth's structure, showing the impedance contrasts as a function of depth and spatial position. These are complex problems that require the power of a supercomputer." Cray Research's MPP Program
 Cray Research discussed plans at the technical exposition for its three-phase massively parallel processing (MPP) program, which will deliver the company's first MPP system in 1993. Development is well under way for the first-phase system, which will have a peak performance in excess of 150 gigaflops and will use Digital Equipment Corporation's (Digital) Alpha RISC microprocessor. The second phase of Cray Research's MPP program is expected to result in a system in 1995 with a peak performance of one teraflops (one trillion floating-point operations per second); in 1997, the third phase system
will achieve a sustained teraflops performance on real customer codes. The company has received $12.7 million in Defense Advanced Research Projects Agency (DARPA) funding support for the company's MPP development program.
 In an effort to move MPP technology forward for use on real customer codes, the company's approach to MPP is unique in the industry and will involve integrating MPP and parallel/vector (the company's traditional architecture)
capabilities together in one high-performance system. A software environment is being developed that will "bridge" the MPP and parallel/vector processors so that users can easily send jobs, or portions of their jobs, to the most appropriate computational processing component of the system -- MPP or
parallel/vector. The configuration of both the MPP and the parallel/vector components will be flexible and scalable to provide the best system to meet the users' requirements. Cray Research's MPP system will have a modular design, allowing the company to take advantage of the best technology available at any point in time.
 With this coupling approach, Cray Research's MPP systems will leverage the strengths of the company's existing product line -- continuously enhanced and stable system software, a broad range of applications software, and industry leading I/O. Cray Research has a long history of parallelism and plans to draw on this experience to make MPP a viable commercial product. In 1982 the company introduced the first multiprocessor system and the company's supercomputers have become more and more parallel ever since.
 Ultimately, this strategy will have broad significance for Exploration & Production applications like 3-D seismic migration and simulation of larger reservoirs with finer grids. The CRAY MPP/Y-MP combination will provide the platform needed for a smooth integration of MPP technology into production environments.
 "We have tremendous experience in achieving leading seismic throughput with parallel, shared memory systems," said Joe Gloudeman, vice president of marketing for Cray Research. "We believe our unique strategy of integrating MPP and our general-purpose technology will allow us to bring forward a real production-capable and very stable
MPP environment for our petroleum and other customers. Our petroleum customers have been asking for increased performance to move to the next
generation of 3-D seismic imaging and reservoir simulation. With our strategy, it will be easier for these customers to move their codes to the MPP platforms in an evolutionary approach to allow full production capability." Entry-Level Systems
 Cray Research also had, for the first time at a petroleum trade show, a
live CRAY Y-MP EL system in its booth. This system is the company's air-cooled, entry-level system that is fully compatible with the CRAY Y-MP line
(including the CRAY Y-MP C90) and starts at under $350,000. Through a January, 1992, distribution agreement with Cray


Research, Digital received exclusive worldwide rights to market, sell, and distribute the CRAY Y-MP EL system.
 In total, 68 orders have been received for the CRAY Y-MP EL system since it was announced last October, of which more than half have been ordered and will be sold by Digital. Cray Research and Digital shared a booth at the EAEG exposition and jointly showed and demonstrated the CRAY Y-MP EL system. Keeping PACE
 In addition, the two companies discussed plans to jointly support the formation of a consortium to develop standards for the next- generation,
high-performance computing environment for the petroleum industry. This consortium would establish PACE (Petrotechnical


Application Computing Environment) and is intended to involve hardware and software vendors, petroleum companies, and the Petrotechnical Open Software Consortium (POSC).
 Cray Research creates the most powerful, highest-quality computational tools for solving the world's most challenging scientific and industrial problems.
 -0- 6/2/92
 /CONTACT: Steve Conway of Cray Research, 612-683-7133, or Kate Neessen-Haugh of EAEG, Paris, 011.33.1.47.66.01.55/
 (CYR) CO: Cray Research; European Association of Exploration Geophysicists ST: Minnesota IN: CPR SU:


KH -- MN004 -- 6027 06/02/92 08:03 EDT
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Date:Jun 2, 1992
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