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Old   September 3, 2006, 07:07
Default solving a Matrix
  #1
Behafarid
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Hello friends.

I'm working on a very larg 2-D zone. I have to divide it to 3000*500 nodes at least. I need a simple method to solve this problem with an acceptable convergence. My computer CPU is a 3GHZ Intel procesor. I'm eagerly waiting for your suggestions.

Best regards. Goodbye.
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Old   September 3, 2006, 13:20
Default Re: solving a Matrix
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SAEED MAHLOO
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HELLO I am SAEED MAHLOO,Aerospace(Propulsion) engineer.If your matrix is a tridiagonal you should use TDMA method(THOMAS ALGORITHM) ,If your matrix is 5 diagonal you should use ADI method.Please explain more or Email me? WITH BEST REGARDS GOOOD LUCK

bye

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Old   September 6, 2006, 10:05
Default Re: solving a Matrix
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Nico
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Nothing simpler than Jacoby/Gauss seidel iterative methods.
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Old   September 9, 2006, 23:14
Default Re: solving a Matrix
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Behafarid
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Thank you very much. Unfortunately the matrix is so big (3000*500) that by this method solving the matrix needs a lot of time. Besides, it's a subroutine in a program and this matrix has to be solved 50 000 time during the specefic period of time. I'm seeking for a faster method to solve big matrices. Goodbye.

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