Hello:
I have a mex function that i'm calling from a MATLAB script.
In this MEX function, I make many different MPI calls.
Recently, my MEX function has been crashing MATLAB whenever it encounters a
call to MPI_Barrier.
In the past, I have written many MEX functions that called MPI_Barrier, with
no problems.
The only difference between this MEX function and the other ones is that I
am now declaring some of the variable to be static. Is there some sort of
correlation between static variables and MPI_Barrier that I am not aware of?
(If I take out the call to MPI_Barrier, then some of my programs work fine,
but then there are some other programs where I also need to call MPI_Reduce.
In those programs, I *have* to call MPI_Barrier before calling MPI_Reduce,
but calling MPI_Barrier is crashing MATLAB. Without calling MPI_Barrier
prior to caling MPI_Reducing, MATLAB is also crashing because the processors
are not synchronized when I call MPI_Reduce. Big dilemma here!!!)
Any help or comments are most welcomed!
Thank you,
Anne
___________________________________________________
Anne Pak, L1-50
Building 153 2G8
1111 Lockheed Martin Way
Sunnyvale, CA 94089
(408) 742-4369 (W)
(408) 742-4697 (F)
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