Re: [OMPI users] Incorrect results with MPI-IO with OpenMPI v1.3.0 andbeyond

2010-04-20 Thread E.T.A.vanderWeide
Hi Scott, I find the same behavior for the test program I posted a couple of days ago. It works fine in combination with OpenMPI v1.2, but it produces incorrect results for v1.3 and v1.4. I also agree with your suggestion that something is wrong with the offsets, because for my test program bot

[OMPI users] Weird behavior of the MPI-IO routines

2010-04-16 Thread E.T.A.vanderWeide
Hi, I am using the MPI-IO routines for collective reading of data from binary files. For some cases I encountered problems using Open MPI, while other MPI implementations showed the correct behavior. The attached test program mimics the simplest case for which this problem occurs. It should be