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From: Steven A. DuChene (linux-clusters_at_[hidden])
Date: 2007-02-15 21:24:05


Jeff:
I built openmpi-1.2b4r13658 and tried the test again and my example fortran program
did indeed work fine with that release.
Thanks

-----Original Message-----
>From: Jeff Squyres <jsquyres_at_[hidden]>
>Sent: Feb 15, 2007 4:09 PM
>To: "Steven A. DuChene" <linux-clusters_at_[hidden]>, Open MPI Users <users_at_[hidden]>
>Subject: Re: [OMPI users] ORTE errors on simple fortran program with 1.2b3
>
>On Feb 15, 2007, at 5:43 PM, Steven A. DuChene wrote:
>
>> I am trying to do some simple fortran MPI examples to verify I have
>> a good installation
>> of OpenMPI and I have a distributed program that calculates PI. It
>> seems to compile
>> and work fine with 1.1.4 but whan I compile and run the same
>> program with 1.2b3
>> I get a bunch of the same ORTE errors and then my shell is locked up:
>>
>> [node001:30268] [0,0,0] ORTE_ERROR_LOG: Data unpack had inadequate
>> space in file dss/dss_unpack.c at line 90
>> [node001:30268] [0,0,0] ORTE_ERROR_LOG: Data unpack had inadequate
>> space in file gpr_replica_cmd_processor.c at line 361
>>
>> I then do a Ctrl-C and it tells me "mpirun: killing job..." but my
>> shell never comes back.
>
>We had some problems with this in 1.2b3. I honestly don't remember
>if we fixed them by 1.2b4 or not -- could you try a recent 1.2
>nightly snapshot? they should be fixed there:
>
> http://www.open-mpi.org/nightly/v1.2/
>
>> I do get the following compile time warnings when I build the
>> simple app with either 1.1.4 or 1.2b3:
>>
>> mpif90 -c -I/opt/openmpi/1.1.4/include pi.f
>> In file pi.f:73
>>
>> call mpi_reduce(times(1), total, 1, mpi_real,
>> 1
>> In file pi.f:67
>>
>> call mpi_reduce(piece, pi, 1, mpi_double_precision,
>> 2
>> Warning (155): Inconsistent types (REAL(4)/REAL(8)) in actual
>> argument lists at (1) and (2)
>> mpif90 -o pi pi.o f.o -L /opt/openmpi/1.1.4/lib -lmpi
>
>I'm not a Fortran expert, but I think that this is the f90 compiling
>telling you that you have inconsistent types for the first argument
>of MPI_REDUCE. This is mainly because there is no equivalent in
>Fortran to C's (void*) type -- it's the compiler trying to be helpful
>saying, "Hey, I noticed you have inconsistent types in successive
>calls to the same function. Did you really mean to do that?"
>
>For MPI apps using choice buffers (like the first argument in
>MPI_REDUCE), yes, you did mean to do that -- it's ok. This is not
>really an OMPI issue, but rather a Fortran compiler issue. What you
>might try is:
>
>- use mpif77 instead (although, depending on your compiler, the
>result may be exactly the same)
>- poke through your fortran compiler's docs and see if there's a flag
>that disables this warning
>
>Hope that helps.
>
>--
>Jeff Squyres
>Server Virtualization Business Unit
>Cisco Systems
>