[mpich-discuss] MPICH2-1.3.1 crash and SIGHUP issues.

[Sunil Thomas]

Hi all,

    I am preparing to do a fresh build and install with --enable-debug and
run the same example (reported below) with
debugger (ugh!)... I also found the link below pointing to the similar issue
as the one I reported, opened 3 weeks ago?
Any thoughts on the status or otherwise are appreciated as always...

http://trac.mcs.anl.gov/projects/mpich2/ticket/1147

--Sunil.


On Fri, Jan 7, 2011 at 6:24 PM, Sunil Thomas <sgthomas27 at gmail.com> wrote:

> Hi,
>
>   I noticed that a simple test example code (just one C file) that used to
> run in parallel with an older installation of MPICH2
> (1.2.7 if I recall correctly) no longer runs with the latest stable release
> version (1.3.1). The following is the error I am getting:
>
> *$>mpiexec -f machinefile -n 2 ex5_hypre
> APPLICATION TERMINATED WITH THE EXIT STRING: Hangup (signal 1)*
>
>   When I switch to my actual application (which basically solves a sparse
> system of linear equations) and try to run that
> on 2 processors, it crashes due to a memory access fault error as follows:
>
> *unknown location(0): fatal error in ....: memory access violation at
> address: 0xfffffffe03bce414: no mapping at fault address*
>
>    It seems like the two are related. Both run just fine on 1 processor.
> Has anyone seen these issues and know a fix? Many
> thanks!
>
>
> --Sunil.
>
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