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diff --git a/eclass/mpi-select-r1.eclass b/eclass/mpi-select-r1.eclass
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+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: mpi-select.eclass
+# @MAINTAINER:
+# Michael Gilroy <michael.gilroy24@gmail.com>
+# @BLURB: Allow mpi software to select mpi implementation of choice.
+
+EXPORT_FUNCTIONS src_configure src_compile src_test src_install
+
+case ${EAPI:-0} in
+  6) ;;
+  5) ;;
+  *) die "mpi-select.eclass does not support EAPI ${EAPI}"
+esac
+
+# @ECLASS-VARIABLE: IMPLEMENTATION_LIST
+# @INTERNAL
+# @DESCRIPTION:
+# List of used MPI implementation
+IMPLEMENTATION_LIST="mpich mpich2 openmpi openib-mvapich2"
+
+# @ECLASS-VARIABLE: INSTALLED_IMPLEMENTATIONS
+# @INTERNAL
+# @DESCRIPTION:
+# List of used MPI implementation
+INSTALLED_IMPLEMENTATIONS=get_all_implementations
+
+# @ECLASS-VARIABLE: MPI_DIR
+# @INTERNAL
+# @DESCRIPTION:
+# Location in which mpi software should be installed
+MPI_DIR="/usr/$(get_libdir)/mpi"
+
+# @ECLASS-FUNCTION: mpi-select_detect_installs
+# @DESCRIPTION:
+# See what MPI software is installed on the system
+get_all_implemenetations()
+{
+    for dir in "${MPI_DIR}"/*
+    do
+        INSTALLED_IMPLEMENTATIONS="${INSTALLED_IMPLEMENTATIONS} ${dir}"
+    done
+
+    echo "${INSTALLED_IMPLEMENTATIONS}"
+}
+
+# @ECLASS-FUNCTION: mpi_foreach_implementation
+# @DESCRIPTION:
+# Iterates through each given implementation and repeats commands for each implementation
+mpi_foreach_implementation()
+{
+	debug-print-function ${FUNCNAME} "${@}"	
+
+	# [[ -z "${INSTALLED_IMPLEMENTATIONS}" ]] \
+	#			die "No mpi implementations detected"
+
+	local status=0
+
+	for implementation in "${@}"
+	do
+		# iterate through implementations, repeat same commands for each variant
+		if [[ "${IMPLEMENTATION_LIST}" == *"${implementation}"* ]]; then
+			local BUILD_DIR="${WORKDIR}/build"
+			einfo ${BUILD_DIR}
+			
+			# modeling after multibuild for testing & learning
+			_mpi_run()
+			{
+				local i=1
+				while [[ ${!1} == _* ]];do
+					i+=1
+				done
+
+				[[ ${i} -le ${#} ]]
+				einfo ${@}
+				echo ${@}
+			}
+
+			_mpi_run "${@}"
+		else
+			die "invalid implementation!"
+		fi
+
+	
+	done
+
+	echo "${status}"
+}
+
+# TODO: write src_configure/compile/test/
+mpi_src_configure()
+{
+	debug-print-function "${FUNCNAME}" "${@}"
+
+	mpi-select_abi_src_configure()
+	{
+		debug-print-function "${FUNCNAME}" "${@}"
+		pushd "${BUILD_DIR}" > /dev/null || die
+		if declare -f mpi_src_configure > /dev/null; then
+			mpi_src_configure
+		else
+			default_src_configure	
+		fi
+		popd > /dev/null || die
+	}
+
+	mpi_foreach_implementation mpi-select_abi_src_configure
+}
+
+mpi_src_compile()
+{
+	debug-print-function "${FUNCNAME}" "${@}"
+
+	mpi-select_abi_src_compile()
+	{
+		debug-print-function "${FUNCNAME}" "${@}"
+		pushd "${BUILD_DIR}" > /dev/null || die
+		if declare -f mpi_src_configure > /dev/null; then
+			mpi_src_compile
+		else
+			default_src_configure	
+		fi
+		popd > /dev/null || die
+	}
+
+	mpi_foreach_implementation mpi-select_abi_src_compile
+}
+
+mpi_src_test()
+{
+	debug-print-function "${FUNCNAME}" "${@}"
+
+	mpi-select_abi_src_test()
+	{
+		debug-print-function "${FUNCNAME}" "${@}"
+		pushd "${BUILD_DIR}" > /dev/null || die
+		if declare -f mpi_src_configure > /dev/null; then
+			mpi_src_test
+		else
+			default_src_configure	
+		fi
+		popd > /dev/null || die
+	}
+
+	mpi_foreach_implementation mpi-select_abi_src_test
+}
+
+mpi_src_install()
+{
+	debug-print-function "${FUNCNAME}" "${@}"
+
+	mpi-select_abi_src_install()
+	{
+		debug-print-function "${FUNCNAME}" "${@}"
+		pushd "${BUILD_DIR}" > /dev/null || die
+		if declare -f mpi_src_configure > /dev/null; then
+			mpi_src_install_
+		else
+			default_src_configure	
+		fi
+		popd > /dev/null || die
+	}
+	mpi_foreach_implementation mpi-select_abi_src_install
+}