76 lines
2.1 KiB
Plaintext
76 lines
2.1 KiB
Plaintext
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.. _create_graph :
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CREATE_GRAPH
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> Create a node or dual (element) adjacency graph. If node option is selected,
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the graph of node adjacency is created, if dual option is selected, the graph
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of element adjacency (dual graph) is created.
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For details of METIS algorithms and descriptions of the third command line
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argument see:
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[http://glaros.dtc.umn.edu/gkhome/views/metis](http://glaros.dtc.umn.edu/gkhom
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e/views/metis)
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See [METIS ](metis.html)documentation for description of graph format.
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The default name of the attributes that are created are different depending on
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which option (metis or lagrit) is used.
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>
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> `create_graph / metis / [node | dual] / [nxadj] / [nadjncy]
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create_graph/ lagrit / dual / jtetoff / jtet
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`
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>
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> See the [dump](DUMP2.html) command for options to output the adjacency graph
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to a file.`
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`
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LIMITATIONS
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> The metis option will not work on a hybrid mesh. Supported element types are
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tri, tet, quad, hex.
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>
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> The /lagrit/ option will only produce the dual adjacency graph. The only
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option for the name of the graph arrays are jtetoff and jtet. The present
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implementation is just a wrapper on the [geniee](GENIEE.html) command.
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>
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> See instructions in documentation of the [metis](metis.html) command.
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METIS Interface to LaGriT
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> METIS can be freely distributed provided that:
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* A reference to the following paper is included: _ "A Fast and Highly Quality Multilevel Scheme for Partitioning Irregular Graphs". George Karypis and Vipin Kumar. SIAM Journal on Scientific Computing, Vol. 20, No. 1, pp. 359--392, 1999._
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* The original documentation ([PDF file of the manual](http://glaros.dtc.umn.edu/gkhome/fetch/sw/metis/manual.pdf)) and copyright notice is include
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* METIS 4.0 Copyright 2001-06, Regents of the University of Minnesota
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FORMAT:
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> `create_graph / metis / [node | dual] / [nxadj] / [nadjncy]`
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EXAMPLES:
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> `create_graph / metis / dual / -def- / -def-
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create_graph / metis / node / -def- / -def-
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create_graph / metis / dual / ie1 / ieadj1
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create_graph / metis / node / in1 / inadj1
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create_graph / lagrit / dual / jtetoff / jtet`
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