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Porting Codes 2Use of CompilersThe main tool in porting applications is the compiler, as this is the means of converting your raw source code into an executable. When moving between compilers on different machines it is necessary to look at the behaviour of one compiler compared to another, and to assess what changes may need to be made to Makefiles and compile lines in order to get optimal performance combined with the required accuracy. When compiling a working code for use on a supercomputer, it is necessary to use
a high optimisation level to increase throughput. By default the optimisation
level on both Origin and Altix machines is set to be |
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Page maintained by csar-advice@cfs.ac.uk This page last updated: Tuesday, 17-Aug-2004 15:32:53 BST |