Re: [Valgrind-users] valgrind and MPI wrappers

[Seán <sea...@gm...>]

Seán wrote:
> 
> I seem to have the same problem. 
> 

I have solved my initial problem. It was caused by interference of another
valgrind version already installed. I did a "complete remove" using
synaptic, instead of the "remove" I had previously tried. I now have
libmpiwrap.so installed in the directory
/usr/local/lib/valgrind/x86-linux/libmpiwrap.so.

I am trying to run an MPI HelloWorld program with valgrind. I am not getting
the expected output
"valgrind MPI wrappers 31901: Active for pid 31901" . 
Instead I get:

sean@seanscomputer:~/CODE$
LD_PRELOAD=/usr/local/lib/valgrind/x86-linux/libmpiwrap.so mpirun -np 2
/usr/local/bin/valgrind ./main
==2869== Memcheck, a memory error detector.
==2869== Copyright (C) 2002-2008, and GNU GPL'd, by Julian Seward et al.
==2869== Using LibVEX rev 1884, a library for dynamic binary translation.
==2869== Copyright (C) 2004-2008, and GNU GPL'd, by OpenWorks LLP.
==2869== Using valgrind-3.4.1, a dynamic binary instrumentation framework.
==2869== Copyright (C) 2000-2008, and GNU GPL'd, by Julian Seward et al.
==2869== For more details, rerun with: -v
==2869== 
valgrind: seanscomputer: command not found
p0_2869:  p4_error: Child process exited while making connection to remote
process on localhost: 0
==2869== Conditional jump or move depends on uninitialised value(s)
......

Does anyone know what that "valgrind: hostname: command not found" error is?

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