[mpich-discuss] Another integer overflow

[Guo, Yanfei]

Hi Joachim,

Thanks for reporting. Let me try it on our side.

Best,

Yanfei Guo
Assistant Computer Scientist
MCS, ANL

On 1/31/19, 12:41 PM, "Joachim Protze via discuss" <discuss at mpich.org> wrote:

    Hi all,
    
    we found another integer overflow when using MPI_Sendrecv_replace, see 
    attached file.
    When the buffer size exceeds MAX_INT, a segmentation fault occurs.
    I could reproduce this with the MPICH 3.3a2 installation on my Ubuntu 
    desktop.
    
    @Jeff: I could reproduce the segfault as well as with IntelMPI 2018
    IntelMPI 2019 detects a message truncation
    
    
    Best
    Joachim
    -- 
    Dipl.-Inf. Joachim Protze
    
    IT Center
    Group: High Performance Computing
    Division: Computational Science and Engineering
    RWTH Aachen University
    Seffenter Weg 23
    D 52074  Aachen (Germany)
    Tel: +49 241 80- 24765
    Fax: +49 241 80-624765
    protze at itc.rwth-aachen.de
    www.itc.rwth-aachen.de