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<div class="moz-cite-prefix">Hi Adnan!<br>
<br>
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.<br>
<br>
thanks,<br>
-Phil<br>
<br>
On 05/28/2015 04:20 PM, Adnan Haider wrote:<br>
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<div>Hi,<br>
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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:<br>
Darshan failed to map symbol: H5Fopen<br>
Darshan failed to map symbol: H5Fopen<br>
Darshan failed to map symbol: H5Fopen<br>
Darshan failed to map symbol: H5Fopen<br>
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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!<br>
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<div dir="ltr">Thanks, Adnan Haider
<div>B.S Candidate, Computer Science</div>
<div>Illinois Institute of Technology </div>
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