It's not guaranteed to work on 10.8 and above. If you have an older OS, it's fine.
Sent from my iPhone On Jul 14, 2013, at 9:59 AM, Dmitry Karpeyev <[email protected]> wrote: Are there known problems with valgrind for macos? I have it installed from macports and it seems to work fine. Dmitry. On Sun, Jul 14, 2013 at 7:26 AM, Cody Permann <[email protected]> wrote: > Sounds like a memory corruption problem. I know several users that are > experts at writing code like that. > > Unfortunately, it can be difficult to track down on OS X due to a lack > of working memory analysis tools. > 1. Since this problem popped up after you changed your initial > condition, you may just want to start by carefully looking at your > code and thinking about cases where your variables might not be > initialized, or where calculations could potentially produce underflow > or overflow conditions. > 2. If you have access to a Linux box, then you will have bounds > checked STL containers at your disposal in debug mode. You'll also be > able to run your code through valgrind. Both of those operations are > relatively easy to perform. Let us know if you have any questions. > > Cody > > Sent from my iPhone > > On Jul 13, 2013, at 11:17 PM, subramanya sadasiva <[email protected]> > wrote: > > > Hi, I am observing some really really really weird SNES behavior in my > SNESVI code called through Libmesh. This behaviour appeared after I changed > some initial conditions and only happens in an optimized build. I am > running this code on a Macbook pro running os x 10.8.. > > When the debug code is run, the residuals computed for the initial > conditions provided give norms which are of the expected magnitude.. so the > SNES_Monitor output is, > > solving the cahn hilliard time step 0 SNES Function norm > 8.223262421671e-01 1 SNES Function norm 3.793806858333e-03Nonlinear solve > did not converge due to DIVERGED_MAX_IT iterations 1 > > The output from SNES_Monitor with the optimized code on the other hand > is, > > solving the cahn hilliard time step 0 SNES Function norm > 5.153882032022e+19 1 SNES Function norm 1.446612980133e+19Nonlinear solve > did not converge due to DIVERGED_MAX_IT iterations 1 > > > > Absolutely nothing else has changed in the code except that one code is > built with a debugging and one with an optimized version of the code. > > Any ideas?Subramanya > > > ------------------------------------------------------------------------------ > > See everything from the browser to the database with AppDynamics > > Get end-to-end visibility with application monitoring from AppDynamics > > Isolate bottlenecks and diagnose root cause in seconds. > > Start your free trial of AppDynamics Pro today! > > > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > > _______________________________________________ > > Libmesh-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/libmesh-users > ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
