Function comm_getNumNodes

quest/src/comm/comm_config.cpp:157–175

int comm_getNumNodes() {
#if COMPILE_MPI

    // if distribution was not runtime enabled (or a validation error was 
    // triggered), every node (if many MPI processes were launched)
    // believes it is the one and only node
    if (!comm_isInit())
        return 1;

    int numNodes;
    MPI_Comm_size(MPI_COMM_WORLD, &numNodes);
    return numNodes;

#else

    // if MPI isn't compiled, we're definitely non-distributed; return single node
    return 1;
#endif
}


void comm_sync() {