legacy_mpi

README.md
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			# Dependencies

			## Core

			FFTW3_OMP, swig3, python(2\|3), numpy, g++ with C++14 support

			## Doc

			Doxygen, Mercurial

			# Build

			The build system uses SCons. In order to construct the library you should hit:

			scons

			And to speedup the process you can do:

			scons -j 6

			In order to clean the build

			scons -c

			In order to compile in debug

			scons build_type=debug

			Indeed the default was

			scons build_type=release

			In order to make the compilation more verbose

			scons verbose=true

			For a list of all compilation options:

			scons -h

			You can customize a few compilation variables:
			- `CXX` changes the compiler
			- `CXXFLAGS` adds flags to the compilation process

			For example:
			- `scons CXX=icpc` compiles with the intel C++ compiler
			- `CXXFLAGS=-mavx2 scons` adds the `-mavx2` flag (which enables some Intel instructions) to the compilation process

			If the `CXX` variable is defined in your environment, `scons` will take it as a default compiler.

			## Build the doxygen

			scons build_doc=true

			# Coding

			## Python

			Tamaas is mainly used through the python interface. An example can be found in `examples/new_contact.py`

			## C++

			TODO: update the example

			# Paralellism

			Tamaas features shared-memory paralellism with OpenMP. The number of threads can be
			controlled via the `OMP_NUM_THREADS` environment variable or the `omp_set_num_thread()`
			function in the OpenMP API.