[Darshan-users] Darshan error with HDF5

[Phil Carns]

Hi Adnan!

Is everything in the application statically linked (maybe check with ldd 
<executable>)?  That error message is supposed to only be generated by 
the dynamic (ld-preloaded) darshan library, because it has to locate 
underlying symbols at run time.  The symbol name mapping should be set 
at link time for a static executable.

thanks,
-Phil

On 05/28/2015 04:20 PM, Adnan Haider wrote:
> Hi,
> I am hoping to use Darshan for analyzing our application's 
> performance. We are using HDF5 and netcdf 4. I installed Darshan 
> version 2.3.1 and mvapich2 for our mpi implementation. Darshan works 
> fine for a standard mpi pingpong application. When we run our 
> application, however, it gives the following error:
> Darshan failed to map symbol: H5Fopen
> Darshan failed to map symbol: H5Fopen
> Darshan failed to map symbol: H5Fopen
> Darshan failed to map symbol: H5Fopen
>
> The four instances of the error probably have to do with the 4 mpi 
> ranks specified at runtime. Nothing is written into the log directory. 
> This is the only output, unless there is some error file I am not 
> aware of. I used the static instrumentation approach for enabling 
> Darshan. Thanks for the help!
>
> Thanks, Adnan Haider
> B.S Candidate, Computer Science
> Illinois Institute of Technology


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