Challenges and Issues of the Integration of RADIC into Open MPI

Parallel machines are growing in complexity and number of components which increases fault probability. Thus, MPI applications running on these machines may not reach completion. This paper presents RADIC/OMPI, which is the integration of RADIC fault tolerance architecture into Open MPT. RADIC/OMPI relies on uncoordinated checkpoints combined with pessimistic receiver-based message logs in a distributed way without the need to use any central or stable elements. Due to this, it assures the application completion automatically and transparently for users and administrators. We concluded that within certain applications RADIC/OMPI provides fault tolerance with an acceptable overhead even in the presence of consecutive faults.