[Boost-mpi] Is there size limit for the messages being sent and received?

From: 1 Reviewer (pengtj77_at_[hidden])
Date: 2023-02-19 13:15:12

Hi,

I am running my program on a cluster. I use the following command in the program,

all_gatherv (const communicator& comm, const T& in_value, T* out_values,
            const std::vector<int>& sizes).

The program works well if the size of in_value  and out_values is small.
However, it fails if the size is big.  I just can’t fix it.

Any help or advices are greatly appreciated.

Peng