So I spoke to a friend who has experience with valgrind and it turns out I had
the commands in the wrong order. He told me I wanted to run valgrind on my
process and not on mpiexec. So now that I'm running the commands in the
following order, it's working "mpiexec -np 5 valgrind spk_mac_mpi <
inputfile.txt". This may have been obvious to everyone else, but I thought I'd
post the solution all the same.
On 3/17/11 9:23 AM, "Eric" <[email protected]> wrote:
I'm a new user of valgrind and am attempting to debug an open-source package
called spparks (available at http://www.cs.sandia.gov/~sjplimp/spparks.html).
I have installed valgrind and it works when I run a simple commands like
"valgrind ls -l".
However, when I run the spparks package within valgrind, I get an error. This
is being run on a Mac Pro 64-bit workstation and runs under MPI. I am fairly
confident that the spparks package does not have any memory issues for the
simple case I am testing (I plan to later debug some personalized code I added).
So when I execute the command "valgrind mpiexec -np 5 spk_mac_mpi <
inputfile.txt" It starts out like it is going to work and then continuously
prints out the following two lines of text over and over
---
==37273== Warning: ignored attempt to set SIGUSR2 handler in sigaction();
==37273== the SIGUSR2 signal is used internally by Valgrind
---
I have looked through the valgrind source code and found the following text in
"memcheck/tests/sigkill.stderr.exp-darwin"
---
setting signal 31: Warning: ignored attempt to set SIGUSR2 handler in
sigaction();
the SIGUSR2 signal is used internally by Valgrind
Invalid argument
getting signal 31: Success
---
and it looks like the signal 31 is set in the following files on the following
lines:
---
include/vki/vki-ppc32-aix5.h:224:#define VKI_SIGUSR2 31
include/vki/vki-ppc64-aix5.h:225:#define VKI_SIGUSR2 31
---
now I may be missing something, but it seems to me that this is the only time
that these are the only files that the signal 31 is set for SIGUSR2 and this
happens to be for the ppc files and I'm running this on an Intel machine. When
I run the configure command my Primary build target (and only build target as I
enabled only 64 bit) is AMD64_DARWIN.
So going on this, if I look at the include file for darwin I see that it is
---
include/vki/vki-darwin.h:482:#define VKI_SIGUSR2 SIGUSR2
---
and isn't set to a specific number unless SIGUSR2 is set to 31 elsewhere.
So I may have gone down the wrong path entirely, but I'm wondering if there
could be an error for the AMD64_DARWIN build. Or the more likely result is
that I am doing something wrong, but I don't know what that is.
Thanks for your help in the matter.
Eric------------------------------------------------------------------------------
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