I'm new at it too, but might be able to help you a bit.
A sigsegv error occurs usually when you try to access something in memory that's not actually there. Like using a pointer that points to nothing. In my short experience with MPI so far, I got this kind of message when I made something wrong with the functions, like for example sending a buffer and, when telling MPI it's size, giving a wrong value. Make sure there's nothing like that on your code.
For the time thing, I think that what you want is the MPI_WTime() function. Check this out:
balaji srinivas <balajisrinivas86_at_[hidden]> escreveu:
I am new to MPI. The outline of my code is
where r is the rank and functions are included in the .h files. There are no compilation errors. I get the SIGSEGV error while running.
Pls help. how to solve this?
2) how to find the execution time of a mpi program. in C we have
clock_t start=clock() at the beginning and
((double)clock() - start) / CLOCKS_PER_SEC) at the end.
Thanks in advance.
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