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OpenMP function implementations

 
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Ronan



Joined: 27 Jun 2007
Posts: 19

PostPosted: Fri Dec 30, 2011 11:02 pm    Post subject: OpenMP function implementations Reply with quote

hi,

I'm trying to build the code which uses paralel processing in Fortran. But I couldn't figure out where the implementation of MPI_Init, MPI_finalization etc.. routines are, probably they are distibuted with come kind of closed form package or is there any direct support in SilverFrost.

Any help will be appreciated.
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 5002
Location: Salford, UK

PostPosted: Sat Dec 31, 2011 10:35 am    Post subject: Reply with quote

Silverfrost FTN95 and SCC provide no support for parallel processing.
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davidb



Joined: 17 Jul 2009
Posts: 526
Location: UK

PostPosted: Sun Jan 01, 2012 11:20 am    Post subject: Reply with quote

Just to be clear, MPI and OpenMP are completely different.

If you want to use OpenMP you should use compiler directives (using comments beginning !$ and !$OMP). You can then write OpenMP compatible code (which you can run on an OpenMP enabled compiler) but which will also compile and run correctly on a sequential compiler like FTN95.
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Programmer in: Fortran 77/95/2003/2008, C, C++ (& OpenMP), java, Python, Perl
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silicondale



Joined: 15 Mar 2007
Posts: 174
Location: Matlock, Derbyshire

PostPosted: Sat Jul 08, 2017 4:43 pm    Post subject: Reply with quote

I understand that Silverfrost FTN95 doesn't provide parallelisation support, but it should be possible to emulate MPI message-passing surely? If not by shared areas of memory, then at least by shared access to files on disk ? Of course you would need to write your own library to do this! Maybe worth a try, in an idle hour or ten.

OpenMP of course is an entirely different sort of parallelisation and I don't see how this might be emulated.
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