Julian, Yes, that was it. OpenMPI 1.3 does NOT, by default, use their own memory allocation routines -- it is an option. In OpenMPI 1.2 it is the default.
I downloaded and installed OpenMPI 1.3, and with it, valgrind 3.4 is finding the memory write errors as I'd expected. So I can once again make good use of this wonderful tool. Thanks. -- Brian Julian Seward wrote: > > 3. It may be that OpenMPI is providing its own implementations of > malloc, free, new, delete, etc; that Memcheck doesn't know about, > which will also cause chaos. > > > J ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users