SparseSYM SOE: Difference between revisions

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{{CommandManualMenu}}
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This command is used to construct a sparse system of equations which uses the [http://www.cise.ufl.edu/research/sparse/umfpack/ UmfPack] solver. To following command is used to construct such a system:
This command is used to construct a sparse symmetric system of equations which uses a row-oriented solution method in the solution phase. The following command is used to construct such a system:


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''system SparseSPD <-symm>'''
| style="background:yellow; color:black; width:800px" | '''system SparseSYM'''
|}
|}
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NOTES:
* versions upto and including 2.2.0 use SparseSPD instead of SparseSYM as the option to the system command. For backward compatability this old option continues to work.




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REFERENCES:
REFERENCES:


* A column pre-ordering strategy for the unsymmetric-pattern multifrontal method, T. A. Davis, ACM Transactions on Mathematical Software, vol 30, no. 2, June 2004, pp. 165-195.
Kincho H. Law and David R. McKay, “A Parallel Row-Oriented Sparse Solution Method for Finite Element Structural Analysis,” International Journal for Numerical Methods in Engineering, 36:2895-2919, 1993.  
* Algorithm 832: UMFPACK, an unsymmetric-pattern multifrontal method, T. A. Davis, ACM Transactions on Mathematical Software, vol 30, no. 2, June 2004, pp. 196-199.
* A combined unifrontal/multifrontal method for unsymmetric sparse matrices, T. A. Davis and I. S. Duff, ACM Transactions on Mathematical Software, vol. 25, no. 1, pp. 1-19, March 1999.
* An unsymmetric-pattern multifrontal method for sparse LU factorization, T. A. Davis and I. S. Duff, SIAM Journal on Matrix Analysis and Applications, vol 18, no. 1, pp. 140-158, Jan. 1997.  
 




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Code Developed by: <span style="color:blue"> fmk </span>
Code Developed by: <span style="color:blue"> Jun Peng, Stanford and now GOOGLE </span>

Latest revision as of 08:44, 10 June 2016




This command is used to construct a sparse symmetric system of equations which uses a row-oriented solution method in the solution phase. The following command is used to construct such a system:

system SparseSYM



NOTES:

  • versions upto and including 2.2.0 use SparseSPD instead of SparseSYM as the option to the system command. For backward compatability this old option continues to work.



REFERENCES:

Kincho H. Law and David R. McKay, “A Parallel Row-Oriented Sparse Solution Method for Finite Element Structural Analysis,” International Journal for Numerical Methods in Engineering, 36:2895-2919, 1993.



Code Developed by: Jun Peng, Stanford and now GOOGLE