Did that make it over to the v1.3 branch?
On Oct 1, 2009, at 1:39 PM, Samuel K. Gutierrez wrote:
Hi, I think Jeff has already addressed this problem. https://svn.open-mpi.org/trac/ompi/changeset/21744 -- Samuel K. Gutierrez Los Alamos National Laboratory On Oct 1, 2009, at 11:25 AM, Peter Thompson wrote: > We had a question from a user who had turned on memory debugging in > TotalView and experience a memory event error Invalid memory > alignment request. Having a 1.3.3 build of OpenMPI handy, I tested > it and sure enough, saw the error. I traced it down to, surprise, a > call to memalign. I find there are a few places where memalign is > called, but the one I think I was dealing with was from malloc.c in > ompi/mca//io/romio/romio/adio/common in the following lines: > > > #ifdef ROMIO_XFS > new = (void *) memalign(XFS_MEMALIGN, size); > #else > new = (void *) malloc(size); > #endif > > I searched, but couldn't find a value for XFS_MEMALIGN, so maybe it > was from opal_pt_malloc2_component.c instead, where the call is > > p = memalign(1, 1024 * 1024); > > There are only 10 to 12 references to memalign in the code that I > can see, so it shouldn't be too hard to find. What I can tell you > is that the value that TotalView saw for alignment, the first arg, > was 1, and the second, the size, was 0x100000, which is probably > right for 1024 squared. > > The man page for memalign says that the first argument is the > alignment that the allocated memory use, and it must be a power of > two. The second is the length you want allocated. One could argue > that 1 is a power of two, but it seems a bit specious to me, and > TotalView's memory debugger certainly objects to it. Can anyone tell > me what the intent here is, and whether the memalign alignment > argument is thought to be valid? Or is this a bug (that might not > affect anyone other than TotalView memory debug users?) > > Thanks, > Peter Thompson > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users
-- Jeff Squyres jsquy...@cisco.com