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<div class="moz-cite-prefix">On 09/09/2015 06:55 AM, Chih-Song Kuo
wrote:<br>
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<p class="MsoNormal">Hello Darshan user community,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I just started using Darshan. Despite it
runs pretty well, I wonder if I have to create different
builds for each combination of MPI and compiler. I had this
concern because you wrote some issues about libfmpich.so. I as
a sales consultant of an HPC-system vendor run benchmarks with
many combinations of MPI and compilers to advise our customer
the best choice.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Your insight will be greatly appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Chih-Song<o:p></o:p></p>
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<br>
Hi Chih-Song,<br>
<br>
I have two pieces of information that might be helpful:<br>
<br>
a) The underlying compiler generally doesn't matter as much as the
MPI library itself. We usually compile Darshan itself with GNU
compilers for maximum compatibility; the resulting Darshan library
should be compatible with most any compiler/linker.<br>
<br>
b) As for the MPI library, the MPICH ABI compatibility initiative
(<a class="moz-txt-link-freetext" href="https://www.mpich.org/abi/">https://www.mpich.org/abi/</a>) should help in theory by making sure
that quite a few of the MPI implementations have a compatible binary
interface. Our team hasn't tested this capability first hand, so I
can't guarantee it will work, but I think the prospects are good.<br>
<br>
thanks,<br>
-Phil<br>
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