get_host_target() should cache the result rather than recalculating each time
get_host_target() should cache the result rather than recalculating each time

psuriana/Halide,jiawen/Halide,ronen/Halide,ronen/Halide,kgnk/Halide,psuriana/Halide,jiawen/Halide,kgnk/Halide,ronen/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,kgnk/Halide,kgnk/Halide,kgnk/Halide,ronen/Halide,ronen/Halide,ronen/Halide,jiawen/Halide,psuriana/Halide,jiawen/Halide,psuriana/Halide,jiawen/Halide,ronen/Halide,jiawen/Halide,ronen/Halide,jiawen/Halide,psuriana/Halide,kgnk/Halide,psuriana/Halide