Hi, allI have gone through some sweat to compile OpenMPI against a custom (non-native) glibc. The reason I need this is that GCC can use the vectorized libm, which came in glibc 2.22. And of course no HPC OS ships with v2.22 - they are all behind a few years!
While using a custom Glibc for a single user program is doable, having a working OpenMPI environment posed a challenge. I have attached a PDF with a short description of the procedure, in case someone finds it useful as well. I'd appreciate comments / suggestions as to what can be done better, and what I might have overlooked. The subject is tricky, and I might well have missed something.
Thanks! Marcin
openmpi_glibc.pdf
Description: Adobe PDF document
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