sorry for delayed response - just getting back from travel. I don't know why you would get that behavior other than a race condition. Afraid that code path is foreign to me, but perhaps one of the folks in the MPI-IO area can respond

On Jan 15, 2014, at 4:26 PM, Ronald Cohen <> wrote:

Update: I reconfigured with enable_io_romio=yes, and this time -- mostly -- the test using Sample_mpio.c  passes.   Oddly the very first time I tried I got errors: 

% mpirun -np 2 sampleio
Proc 1: hostname=Ron-Cohen-MBP.local
Testing simple C MPIO program with 2 processes accessing file ./
    (Filename can be specified via program argument)
Proc 0: hostname=Ron-Cohen-MBP.local
Proc 1: read data[0:1] got 0, expect 1
Proc 1: read data[0:2] got 0, expect 2
Proc 1: read data[0:3] got 0, expect 3
Proc 1: read data[0:4] got 0, expect 4
Proc 1: read data[0:5] got 0, expect 5
Proc 1: read data[0:6] got 0, expect 6
Proc 1: read data[0:7] got 0, expect 7
Proc 1: read data[0:8] got 0, expect 8
Proc 1: read data[0:9] got 0, expect 9
Proc 1: read data[1:0] got 0, expect 10
Proc 1: read data[1:1] got 0, expect 11
Proc 1: read data[1:2] got 0, expect 12
Proc 1: read data[1:3] got 0, expect 13
Proc 1: read data[1:4] got 0, expect 14
Proc 1: read data[1:5] got 0, expect 15
Proc 1: read data[1:6] got 0, expect 16
Proc 1: read data[1:7] got 0, expect 17
Proc 1: read data[1:8] got 0, expect 18
Proc 1: read data[1:9] got 0, expect 19
MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
with errorcode 1.

But when I reran the same mpirun command, the test was successful.   And deleting the executable and recompiling and then again running the same mpirun command, the test was successful.   Can someone explain that?

On Wed, Jan 15, 2014 at 1:16 PM, Ronald Cohen <> wrote:
Aha.   I guess I didn't know what the io-romio option does.   If you look at my config.log you will see my configure line included --disable-io-romio.    Guess I should change --disable to --enable.

You seem to imply that the nightly build is stable enough that I should probably switch to that rather than 1.7.4rc1.   Am I reading between the lines correctly?

On Wed, Jan 15, 2014 at 10:56 AM, Ralph Castain <> wrote:
Oh, a word of caution on those config params - you might need to check to ensure I don't disable romio in them. I don't normally build it as I don't use it. Since that is what you are trying to use, just change the "no" to "yes" (or delete that line altogether) and it will build.

On Wed, Jan 15, 2014 at 10:53 AM, Ralph Castain <> wrote:
You can find my configure options in the OMPI distribution at contrib/platform/intel/bend/mac. You are welcome to use them - just configure --with-platform=intel/bend/mac

I work on the developer's trunk, of course, but also run the head of the 1.7.4 branch (essentially the nightly tarball) on a fairly regular basis.

As for the opal_bitmap test: it wouldn't surprise me if that one was stale. I can check on it later tonight, but I'd suspect that the test is bad as we use that class in the code base and haven't seen an issue.

On Wed, Jan 15, 2014 at 10:49 AM, Ronald Cohen <> wrote:

I just sent out another post with the c file attached.

If you can get that to work, and even if you can't can you tell me what configure options you use, and what version of open-mpi?   Thanks.


On Wed, Jan 15, 2014 at 10:36 AM, Ralph Castain <> wrote:
BTW: could you send me your sample test code?

On Wed, Jan 15, 2014 at 10:34 AM, Ralph Castain <> wrote:
I regularly build on Mavericks and run without problem, though I haven't tried a parallel IO app. I'll give yours a try later, when I get back to my Mac.

On Wed, Jan 15, 2014 at 10:04 AM, Ronald Cohen <> wrote:
I have been struggling trying to get a usable build of openmpi on Mac OSX Mavericks (10.9.1).  I can get openmpi to configure and build without error, but have problems after that which depend on the openmpi version. 

With 1.6.5, make check fails the opal_datatype_test, ddt_test, and ddt_raw tests.  The various atomic_* tests pass.    See checklogs_1.6.5, attached as a .gz file.

Following suggestions from openmpi discussions I tried openmpi version 1.7.4rc1.  In this case make check indicates all tests passed.  But when I proceeded to try to build a parallel code (parallel HDF5) it failed.  Following an email exchange with the HDF5 support people, they suggested I try to compile and run the attached bit of simple code Sample_mpio.c (which they supplied) which does not use any HDF5, but just attempts a parallel write to a file and parallel read.   That test failed when requesting more than 1 processor -- which they say indicates a failure of the openmpi installation.   The error message was:

MPI_INIT: argc 1
MPI_INIT: argc 1
Testing simple C MPIO program with 2 processes accessing file ./
    (Filename can be specified via program argument)
Proc 0: hostname=Ron-Cohen-MBP.local
Proc 1: hostname=Ron-Cohen-MBP.local
Proc 0: MPI_File_open with MPI_MODE_EXCL failed (MPI_ERR_FILE: invalid file)
MPI_ABORT[0]: comm MPI_COMM_WORLD errorcode 1
MPI_BCAST[1]: buffer 7fff5a483048 count 1 datatype MPI_INT root 0 comm MPI_COMM_WORLD

I then went back to my openmpi directories and tried running some of the individual tests in the test and examples directories.  In particular in test/class I found one test that seem to not be run as part of make check which failed, even with one processor; this is opal_bitmap.  Not sure if this is because 1.7.4rc1 is incomplete, or there is something wrong with the installation, or maybe a 32 vs 64 bit thing?   The error message is

mpirun detected that one or more processes exited with non-zero status, thus causing the job to be terminated. The first process to do so was:

  Process name: [[48805,1],0]
  Exit code:    255

Any suggestions?

More generally has anyone out there gotten an openmpi build on Mavericks to work with sufficient success that they can get the attached Sample_mpio.c (or better yet, parallel HDF5) to build? 

Details: Running Mac OS X 10.9.1 on a mid-2009 Macbook pro with 4 GB memory; tried openmpi 1.6.5 and 1.7.4rc1.  Built openmpi against the stock gcc that comes with XCode 5.0.2, and gfortran 4.9.0. 

Files attached: config.log.gz, openmpialllog.gz (output of running ompi_info --all), checklog2.gz (output of make.check in top openmpi directory). 

I am not attaching logs of make and install since those seem to have been successful, but can generate those if that would be helpful.

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