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<h3>
Philip Carns pushed to branch carns/dev-dyn-link-updates
at <a href="https://xgitlab.cels.anl.gov/darshan/darshan">darshan / darshan</a>
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<h4>
Commits:
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<strong><a href="https://xgitlab.cels.anl.gov/darshan/darshan/commit/d23f555d108bdd24c1e6545dba0c4096cfa861b1">d23f555d</a></strong>
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<span>by Phil Carns</span>
<i>at 2020-03-25T17:23:50-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">basic debugging for dynamic linking
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<h4>1 changed file:</h4>
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<a href="#c1f1275094e9957965ea40cf5852335b4164fd05">
darshan-runtime/doc/darshan-runtime.txt
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<h4>Changes:</h4>
<li id="c1f1275094e9957965ea40cf5852335b4164fd05">
<a href="https://xgitlab.cels.anl.gov/darshan/darshan/commit/d23f555d108bdd24c1e6545dba0c4096cfa861b1#c1f1275094e9957965ea40cf5852335b4164fd05"><strong>darshan-runtime/doc/darshan-runtime.txt</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -604,6 +604,20 @@ For statically linked executables:</td>
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<pre style="margin: 0;"> <span id="LC604" class="line" lang="plaintext">00000000004070a0 T darshan_core_register_module</span>
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<pre style="margin: 0;"> <span id="LC605" class="line" lang="plaintext">----</span>
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<pre style="margin: 0;"> <span id="LC606" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">+<span id="LC607" class="line" lang="plaintext">For dynamically linked executables:</span>
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<pre style="margin: 0;">+<span id="LC608" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">+<span id="LC609" class="line" lang="plaintext">* Ensure that the Darshan library is present in the list of shared libraries</span>
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<pre style="margin: 0;">+<span id="LC610" class="line" lang="plaintext"> to be used by the application, and that it appears before the MPI library:</span>
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<pre style="margin: 0;">+<span id="LC611" class="line" lang="plaintext">----</span>
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<pre style="margin: 0;">+<span id="LC612" class="line" lang="plaintext">> ldd mpi-io-test</span>
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<pre style="margin: 0;">+<span id="LC613" class="line" lang="plaintext"> linux-vdso.so.1 (0x00007ffd83925000)</span>
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<pre style="margin: 0;">+<span id="LC614" class="line" lang="plaintext"> libdarshan.so => /home/carns/working/install/lib/libdarshan.so (0x00007f0f4a7a6000)</span>
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<pre style="margin: 0;">+<span id="LC615" class="line" lang="plaintext"> libmpi.so.12 => /home/carns/working/src/spack/opt/spack/linux-ubuntu19.10-skylake/gcc-9.2.1/mpich-3.3.2-h3dybprufq7i5kt4hcyfoyihnrnbaogk/lib/libmpi.so.12 (0x00007f0f4a44f000)</span>
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<pre style="margin: 0;">+<span id="LC616" class="line" lang="plaintext"> libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f0f4a241000)</span>
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<pre style="margin: 0;">+<span id="LC617" class="line" lang="plaintext"> ...</span>
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<pre style="margin: 0;">+<span id="LC618" class="line" lang="plaintext">----</span>
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<pre style="margin: 0;">+<span id="LC619" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">+<span id="LC620" class="line" lang="plaintext">General:</span>
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<pre style="margin: 0;"> <span id="LC621" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC622" class="line" lang="plaintext">* Ensure that the linker is correctly linking in Darshan's runtime libraries:</span>
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<pre style="margin: 0;"> <span id="LC623" class="line" lang="plaintext"> ** A common mistake is to explicitly link in the underlying MPI libraries (e.g., `-lmpich` or `-lmpichf90`)</span>
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