From b08261ed8f01602d47dad35337769a6aa9c2ccb4 Mon Sep 17 00:00:00 2001 From: Jan Siwiec Date: Wed, 25 Mar 2020 14:46:34 +0100 Subject: [PATCH] Update hdf5.md --- docs.it4i/software/numerical-libraries/hdf5.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs.it4i/software/numerical-libraries/hdf5.md b/docs.it4i/software/numerical-libraries/hdf5.md index 2048d380..a1fa42c7 100644 --- a/docs.it4i/software/numerical-libraries/hdf5.md +++ b/docs.it4i/software/numerical-libraries/hdf5.md @@ -21,10 +21,10 @@ Versions **1.8.11** and **1.8.13** of HDF5 library are available on Anselm, comp $ ml hdf5-parallel ``` -The module sets up environment variables, required for linking and running HDF5 enabled applications. Make sure that the choice of HDF5 module is consistent with your choice of MPI library. Mixing MPI of different implementations may have unpredictable results. +The module sets up environment variables required for linking and running HDF5 enabled applications. Make sure that the choice of the HDF5 module is consistent with your choice of the MPI library. Mixing MPI of different implementations may have unpredictable results. !!! note - Be aware, that GCC version of **HDF5 1.8.11** has serious performance issues, since it's compiled with -O0 optimization flag. This version is provided only for testing of code compiled only by GCC and IS NOT recommended for production computations. For more information, see: + Be aware that GCC version of **HDF5 1.8.11** has serious performance issues, since it is compiled with the -O0 optimization flag. This version is provided only for testing of code compiled only by GCC and IS NOT recommended for production computations. For more information, see: All GCC versions of **HDF5 1.8.13** are not affected by the bug, are compiled with -O3 optimizations and are recommended for production computations. -- GitLab