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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 successfully tested to solve beam bending equations on a Langley FEM prototype (4 IMSAI 8080s) which 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 emerged on the market. 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.
- Finite_element_machine wikiPageExternalLink search.jsp?N=0&Ntk=all&Ntx=mode%20matchall&Ntt=knott%2Bcrockett.
- Finite_element_machine wikiPageExternalLink PVJAPRE25369.pdf.
- Finite_element_machine wikiPageExternalLink citation.cfm?id=646739.702119.
- Finite_element_machine wikiPageExternalLink content.cfm?pageid=406&gTable=mtgpaper&gID=50410.
- Finite_element_machine wikiPageID "12501094".
- Finite_element_machine wikiPageRevisionID "520718101".
- Finite_element_machine hasPhotoCollection Finite_element_machine.
- 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 Artifact100021939.
- Finite_element_machine type Computer103082979.
- Finite_element_machine type Device103183080.
- Finite_element_machine type DigitalComputer103196324.
- Finite_element_machine type Instrumentality103575240.
- Finite_element_machine type Machine103699975.
- Finite_element_machine type Mainframe103711711.
- Finite_element_machine type MassivelyParallelComputers.
- Finite_element_machine type Object100002684.
- Finite_element_machine type One-of-a-kindComputers.
- Finite_element_machine type PhysicalEntity100001930.
- Finite_element_machine type Supercomputer104358117.
- Finite_element_machine type Supercomputers.
- Finite_element_machine type Whole100003553.
- 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 m.02w9785.
- Finite_element_machine sameAs Q5450393.
- Finite_element_machine sameAs Q5450393.
- Finite_element_machine sameAs Finite_element_machine.
- Finite_element_machine wasDerivedFrom Finite_element_machine?oldid=520718101.
- Finite_element_machine depiction FEMhw.jpg.
- Finite_element_machine isPrimaryTopicOf Finite_element_machine.