[OMPI users] OpenMPI 1.2.5 race condition / core dump with MPI_Reduce and MPI_Gather

2008-02-22 Thread John Markus Bjørndalen
Hi, I ran into a bug when running a few microbenchmarks for OpenMPI. I had thrown in Reduce and Gather for sanity checking, but OpenMPI crashed when running those operations. Usually, this would happen when I reached around 12-16 nodes. My current crash-test code looks like this (I've remove

Re: [OMPI users] mpi.h macro naming

2008-02-22 Thread Brian W. Barrett
On Thu, 21 Feb 2008, Jeff Squyres wrote: While I agree that having AC actually define them to a value is a Good Thing (better than just defining it to be empty), I do see the pickle that it has put us in. :-\ I don't see an obvious solution. I do :). Try the attached patch. It sneaks in at

Re: [OMPI users] mpi.h macro naming

2008-02-22 Thread Brian W. Barrett
Oops.. forgot to test the C++ bindings, which of course broke. Let me try again and I'll send a better patch. brian On Fri, 22 Feb 2008, Brian W. Barrett wrote: On Thu, 21 Feb 2008, Jeff Squyres wrote: While I agree that having AC actually define them to a value is a Good Thing (better th

Re: [OMPI users] mpi.h macro naming

2008-02-22 Thread Brian W. Barrett
A second attempt, this time with less suck :). Brian On Fri, 22 Feb 2008, Brian W. Barrett wrote: Oops.. forgot to test the C++ bindings, which of course broke. Let me try again and I'll send a better patch. brian On Fri, 22 Feb 2008, Brian W. Barrett wrote: On Thu, 21 Feb 2008, Jeff Squ