Re: [Boost-users] boost-mpi assertion during recv fails

Subject: Re: [Boost-users] boost-mpi assertion during recv fails
From: Kyle Joseph Berger (Kyle.Berger_at_[hidden])
Date: 2013-01-04 16:05:13

I can try doing that. But for now:

for (unsigned int i=0;i<world.size();i++)
    {
        if (particles_to_be_sent[i].size()>0)
        {
            ghosts_to_be_sent[i].part_crossed_send()='b';
            world.isend(i,20,particles_to_be_sent[i]);
        }
    }

    mpi::all_to_all(world,ghosts_to_be_sent,ghosts_received);

    //receive particles
    for (int recv_rank=0;recv_rank<world.size();recv_rank++)
    {
        if (ghosts_received[recv_rank].part_crossed_send()=='b')
        {
            world.recv(recv_rank,20,particles_received); //this line fails
            for (unsigned int i=0;i<particles_received.size();i++)
            {
                //do stuff
            }
        }

        for (unsigned int j=0;j<ghosts_received[recv_rank].ghosts_to_send().size();j++)
        {
            //do stuff
        }
    }

From: Boost-users [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Júlio Hoffimann
Sent: Friday, January 04, 2013 1:38 PM
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] boost-mpi assertion during recv fails

Hello,

I am using boost-mpi and I am getting an error that I am having a hard time figuring out. I am using a recv call and an assertion in the boost code fails:

void boost::mpi::binary_buffer_iprimitive::load_impl(void *, int): Assertion `position+l<=static_cast<int>(buffer_.size())'

Hi Kyle,

You have to provide some code if you want us to help you. It's basically impossible to conclude anything with a single assertion fail.

Do a test case, reduce it to the simplest scenario you can and start pulling back the complexity of your original code. It's tedious, but always works.

Regards,
Júlio.