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I need help for parallalising of fortran code

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Old   June 6, 2003, 07:41
Default I need help for parallalising of fortran code
  #1
Mahibooswami
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Hi, Every one,

I am working on DNS of Diffusion Flames, presently i have a code which is in Fortran 77, I want parallalise this code, can any body suggest how to do parallalisation, where can i get help(books or online material etc) about parallalising the code. I will be very happy if any body gives this information.

Thankyou Mahiboob
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Old   June 6, 2003, 08:50
Default Re: I need help for parallalising of fortran code
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prasat
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I think if you serach in forum you will get much infomation
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Old   June 7, 2003, 21:29
Default Re: I need help for parallalising of fortran code
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hall
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wow big job I think

Depend on the computer source and what kind of parallel method you want to use. If you want to implement message transfer scheme like MPI and PVM, I think you need hard work. If it is a shared memory thing, then it is easy.
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Old   June 10, 2003, 08:34
Default Re: I need help for parallalising of fortran code
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Sebastien Perron
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If you have access to a multi-processor computer with shared-memory, it will be mush easier to use openmp to parallize it (see http://www.openmp.org/ ). If you are stuck with a distributed memory system (such as a linux cluster), well I suggest using MPI instead of PVM. It is the most widely used. But it will not be straitforward job. (see http://www-unix.mcs.anl.gov/mpi/mpich/ and http://www-unix.mcs.anl.gov/petsc/petsc-2/ )

BTW: if you code is explicit, getting it to run in parallel will be much easier.

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Old   June 11, 2003, 01:40
Default Re: I need help for parallalising of fortran code
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Levi
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Why you, Sebastien, don't recommend to use, e.g., High Performance Fortran (HPF) which is easy for studying in comparison with MPI and which yields almost the same results for CFD?
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Old   June 11, 2003, 07:54
Default Re: I need help for parallalising of fortran code
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Sebastien Perron
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OpenMP is as easy as HPF and is portable across all platforms. It is also an industry standard.

But, HPF would also be a good choice. I recommended OpenMP first because I am more familiar with it.

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