Re: [Boost-MPI][Boost-ODEINT] Running odeint within MPI-context without using mpi_state

From: Roland Richter (roland.richter_at_[hidden])
Date: 2021-01-19 09:07:32

So, there is no communication between the threads about the step size,
and each thread can choose their own step size?

Thanks,

regards,

Roland

Am 19.01.21 um 09:52 schrieb Ilja Honkonen:
> Hello
>> Therefore, is the general idea correct at all, or am I doing something
>> wrong here by neglecting a possible communication between the different
>> threads within odeint?
>
> You probably must only use steppers where you decide the step size and
> which don't adjust their step size dynamically. Otherwise I guess
> you'd have to modify the dynamic step size code to synchronize step
> sizes between different mpi processes, etc.
> Ilja