Closes #105 by updating build instruction for MacOS (#106)

* Update build instruction for MacOS Update build instruction for MacOS when using the HDF5 package from brew. * Update buildinstructions.rst
hpc-io · Jul 11, 2023 · 40de21b · 40de21b
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commit 40de21b
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diff --git a/docs/source/buildinstructions.rst b/docs/source/buildinstructions.rst
@@ -34,6 +34,14 @@ For instance, on the Perlmutter system at NERSC:
 
 You can also load any parallel HDF5 provided on your system, and you are good to go.
 
+.. warning::
+
+    If you are using ``brew install hdf5-mpi`` in MacOS to install HDF5 with parallel support, make sure you export the installation path so h5bench can correctly detect the dependency:
+
+    .. code-block:: bash
+
+        export HDF5_HOME="$(brew --prefix hdf5-mpi)"
+
 +++++++++++++++++++++++++++++++++
 Use your own installed HDF5
 +++++++++++++++++++++++++++++++++