[Darshan-users] [Bug report] Darshan and Fortran (mpif90)

[Phil Carns]

Thanks Sandra!  I updated our svn repository so that this fix will go 
out with our next release.

-Phil

On 05/02/2011 06:58 AM, 8schroed at informatik.uni-hamburg.de wrote:
> Hello,
>
> I tried to run Darshan with Fortran. For testing I wrote a short 
> program which is using MPICH2 and MPI-I/O (see the attachment 
> hello-world-mpi.f90).
>
> After compiling the code with Darshan and running the executable, 
> Darshan didn't generate a logfile. To find the cause I analysed the 
> Mapfile "$tmpfile" which is created with the build. The main 
> interesting part in this file shows the symbols of MPI-functions:
>
>                 0x0000000000400b58                mpi_comm_rank_
>                 0x0000000000400b68                mpi_file_close_
>                 0x0000000000400b78                mpi_file_open_
>
>                                         ....
>
>                 0x0000000000400bd8                mpi_file_write_
>                 0x0000000000400be8                mpi_init_
>                 0x0000000000400bf8                mpi_finalize_
>                 0x0000000000400c08                mpi_comm_size_
>
> But in mpif90 (of Darshan) the "grep"-command in line 84 is searching 
> for "MPI" in upper case even though "MPI" is written in lower case in 
> the Mapfile:
>
>                 grep MPI $tmpfile
>
> As a result the script "mpif90" of MPICH2 is executed instead of 
> Darshan, because "grep" sent an exitcode equal 1. By adding the "-i" 
> option, "grep" ignores case distinctions and the exit code is equal 0. 
> Now mpif90 of Darshan will be used and after running the program there 
> is a logfile in the log directory.
>
> Please take note of this bug and fix it in your Darshan-mpif90 to 
> avoid the problem of case sensitivity.
>
> Best regards,
>
> Sandra
>
>
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