initial upload

README_install_HDF5.md

@@ -0,0 +1,12 @@
+# Compile HDF5 library with parallel option from the source
+
+1. run the install script `./install_mpi_and_hdf5_local.sh`, which compiles and creates openmpi and hdf5 executables in `./external_libs/local_mpi_hdf5/bin`
+
+2. compile TOMOATT by 
+``` bash
+mkdir build && cd build
+cmake .. -DCMAKE_PREFIX_PATH=$(pwd)/../external_libs/local_mpi_hdf5
+make -j16
+```
+
+This creates TOMOATT executable at ./build/TOMOATT