Automatic generation of profiling libraries
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For each of these libraries, the process of building the library was very similar. First, profiling versions of MPI_Init and MPI_Finalize must be written. The profiling versions of the other MPI routines are similar in style. The code in each looks like
int MPI_Xxx( . . . )
{
do something for profiling library
retcode = PMPI_Xxx( . . . );
do something else for profiling library
return retcode;
}
We generate these routines by writing the ``do something'' parts only once, in
schematic form, and then wrapping them around the PMPI_ calls
automatically. It is thus easy to generate profiling libraries. See the
README file in mpich/profiling/wrappergen or
Appendix Automatic generation of profiling libraries
.
Examples of how to write wrapper templates are located in the profiling/lib subdirectory. There you will find the source code (the .w files) for creating the three profiling libraries described above. An example Makefile for trying these out is located in the profiling/examples directory.
Up: The MPE library of useful extensions Next: Tools for Profiling Library Management Previous: Accessing the profiling libraries
