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• Finite_element_machine abstract "The Finite Element Machine (FEM) was a late 1970s-early 1980s NASA project to build and evaluate the performance of a parallel computer for structural analysis. The FEM was completed and successfully tested at the NASA Langley Research Center in Hampton, Virginia. The motivation for FEM arose from the merger of two concepts: the finite element method of structural analysis and the introduction of relatively low-cost microprocessors. In the finite element method, the behavior (stresses, strains and displacements resulting from load conditions) of large-scale structures is approximated by a FE model consisting of structural elements (members) connected at structural node points. Calculations on traditional computers are performed at each node point and results communicated to adjacent node points until the behavior of the entire structure is computed. On the Finite Element Machine, microprocessors located at each node point perform these nodal computations in parallel. If there are more node points (N) than microprocessors (P), then each microprocessor performs N/P computations. The Finite Element Machine contained 32 processor boards each with a Texas Instruments TMS9900 processor, 32 Input/Output (IO) boards and a TMS99/4 controller. The FEM was conceived, designed and fabricated at NASA Langley Research Center, Hampton, Virginia. The TI 9900 processor chip was selected by the NASA team as it was the first 16-bit processor available on the market which until then was limited to less powerful 8-bit processors. The FEM concept was first successfully tested to solve beam bending equations on a Langley FEM prototype (4 IMSAI 8080s). This led to full-scale FEM fabrication & testing by the FEM hardware-software-applications team led by Dr. Olaf Storaasli formerly of NASA Langley Research Center and Oak Ridge National Laboratory (currently at USEC).The first significant Finite Element Machine results are documented in: The Finite Element Machine: An experiment in parallel processing (NASA TM 84514) Based on the Finite Element Machine's success in demonstrating Parallel Computing viability, (alongside ILLIAC IV and Goodyear MPP), commercial parallel computers soon were sold. NASA Langley subsequently purchased a Flex/32 Multicomputer (and later Intel iPSC and Intel Paragon) to continue parallel finite element algorithm R&D. In 1989, the parallel equation solver code, first prototyped on FEM, and tested on FLEX was ported to NASA's first Cray YMP via Force (Fortran for Concurrent Execution) to reduce the structural analysis computation time for the space shuttle Challenger Solid Rocket Booster resdesign with 54,870 equations from 14 hours to 6 seconds. This research accomplishment was awarded the first Cray GigaFLOP Performance Award at Supercomputing '89. This code evolved into NASA's General-Purpose Solver (GPS) for Matrix Equations used in numerous finite element codes to speed solution time. GPS sped up AlphaStar Corporation's Genoa code 10X, allowing 10X larger applications for which the team received NASA's 1999 Software of the Year Award and a 2000 R&D100 Award.".
• Finite_element_machine thumbnail FEMhw.jpg?width=300.
• Finite_element_machine wikiPageExternalLink cas-storaasli.
• Finite_element_machine wikiPageExternalLink search.jsp?N=0&Ntk=Title&Ntx=mode%20matchall&Ntt=PASLIB.
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• Finite_element_machine wikiPageExternalLink PVJAPRE25369.pdf.
• Finite_element_machine wikiPageExternalLink citation.cfm?id=646739.702119.
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• Finite_element_machine wikiPageID "12501094".
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• Finite_element_machine wikiPageOutDegree "36".
• Finite_element_machine wikiPageRevisionID "633991409".
• Finite_element_machine wikiPageWikiLink 8-bit.
• Finite_element_machine wikiPageWikiLink Algorithm.
• Finite_element_machine wikiPageWikiLink AlphaStar_Corporation.
• Finite_element_machine wikiPageWikiLink Approximation.
• Finite_element_machine wikiPageWikiLink Category:Finite_element_method.
• Finite_element_machine wikiPageWikiLink Category:History_of_Hampton,_Virginia.
• Finite_element_machine wikiPageWikiLink Category:Massively_parallel_computers.
• Finite_element_machine wikiPageWikiLink Category:NASA.
• Finite_element_machine wikiPageWikiLink Category:NASA_online.
• Finite_element_machine wikiPageWikiLink Category:One-of-a-kind_computers.
• Finite_element_machine wikiPageWikiLink Category:Parallel_computing.
• Finite_element_machine wikiPageWikiLink Category:Supercomputers.
• Finite_element_machine wikiPageWikiLink File:FEMhw.jpg.
• Finite_element_machine wikiPageWikiLink Finite_element_method.
• Finite_element_machine wikiPageWikiLink Goodyear_MPP.
• Finite_element_machine wikiPageWikiLink Hampton,_Virginia.
• Finite_element_machine wikiPageWikiLink ILLIAC_IV.
• Finite_element_machine wikiPageWikiLink output.
• Finite_element_machine wikiPageWikiLink Intel_Paragon.
• Finite_element_machine wikiPageWikiLink Intel_iPSC.
• Finite_element_machine wikiPageWikiLink Langley_Research_Center.
• Finite_element_machine wikiPageWikiLink Microprocessor.
• Finite_element_machine wikiPageWikiLink NASA.
• Finite_element_machine wikiPageWikiLink Oak_Ridge_National_Laboratory.
• Finite_element_machine wikiPageWikiLink Olaf_Storaasli.
• Finite_element_machine wikiPageWikiLink Parallel_computing.
• Finite_element_machine wikiPageWikiLink Prototype.
• Finite_element_machine wikiPageWikiLink Research_and_development.
• Finite_element_machine wikiPageWikiLink Structural_analysis.
• Finite_element_machine wikiPageWikiLink 4A.
• Finite_element_machine wikiPageWikiLink Texas_Instruments_TMS9900.
• Finite_element_machine wikiPageWikiLink United_States_Enrichment_Corporation.
• Finite_element_machine wikiPageWikiLinkText "FEM".
• Finite_element_machine wikiPageWikiLinkText "Finite element machine".
• Finite_element_machine wikiPageWikiLinkText "finite element machine".
• Finite_element_machine wikiPageUsesTemplate Template:Reflist.
• Finite_element_machine subject Category:Finite_element_method.
• Finite_element_machine subject Category:History_of_Hampton,_Virginia.
• Finite_element_machine subject Category:Massively_parallel_computers.
• Finite_element_machine subject Category:NASA.
• Finite_element_machine subject Category:NASA_online.
• Finite_element_machine subject Category:One-of-a-kind_computers.
• Finite_element_machine subject Category:Parallel_computing.
• Finite_element_machine subject Category:Supercomputers.
• Finite_element_machine type Agency.
• Finite_element_machine type Class.
• Finite_element_machine type Computer.
• Finite_element_machine type History.
• Finite_element_machine type Object.
• Finite_element_machine type Organization.
• Finite_element_machine type Supercomputer.
• Finite_element_machine type Organization.
• Finite_element_machine comment "The Finite Element Machine (FEM) was a late 1970s-early 1980s NASA project to build and evaluate the performance of a parallel computer for structural analysis. The FEM was completed and successfully tested at the NASA Langley Research Center in Hampton, Virginia. The motivation for FEM arose from the merger of two concepts: the finite element method of structural analysis and the introduction of relatively low-cost microprocessors.".
• Finite_element_machine label "Finite element machine".
• Finite_element_machine sameAs Q5450393.
• Finite_element_machine sameAs m.02w9785.
• Finite_element_machine sameAs Q5450393.
• Finite_element_machine wasDerivedFrom Finite_element_machine?oldid=633991409.
• Finite_element_machine depiction FEMhw.jpg.
• Finite_element_machine isPrimaryTopicOf Finite_element_machine.