Solving a lot of independent ODEs in parallel

General Discussion
2

Use MPI, it’s an embarrassingly parallel job, so trivial to parallelize.

int ntask = 200;
for(int i = (mpirank * ntask) / mpisize; i < ((mpirank + 1) * ntask) / mpisize; ++i) {
  cout << "process #" << mpirank << " dealing with task #" << i << endl;
}
mpiAllreduce(...); // for synchronization