run tests with only six threads to limit memory usage
run tests with only six threads to limit memory usage

TyRoXx/Lpg,mamazu/Lpg,TyRoXx/Lpg,TyRoXx/Lpg,TyRoXx/Lpg,mamazu/Lpg,mamazu/Lpg,TyRoXx/Lpg,mamazu/Lpg