@Daniel: thanks - i could compile vprof now! Jody
On Thu, Apr 23, 2009 at 12:35 PM, Daniel Spångberg <dani...@mkem.uu.se> wrote: > Regarding miscompilation of vprof and bfd_get_section_size_before_reloc. > Simply change the call from bfd_get_section_size_before_reloc to > bdf_get_section_size in exec.cc and recompile. > > Daniel Spångberg > > Den 2009-04-23 10:16:07 skrev jody <jody....@gmail.com>: > >> Hi all >> Thanks for all the input. >> >> I have not gotten around to try any of the tools (Sun Studio, Tau or >> vprof). >> Actually, i can't compile vprof - make fails with >> exec.cc: In static member function ‘static void >> BFDExecutable::find_address_in_section(bfd*, asection*, void*)’: >> exec.cc:144: error: ‘bfd_get_section_size_before_reloc’ was not >> declared in this scope >> Does anybody have an idea how to get around this problem? >> >> Anyway, the GMON_OUT_PREFIX hint was very helpful - thanks, Jason! >> >> If i get vprof or one of the other tools running, i'll write something up >> - >> perhaps the profiling subject would be worthy for a FAQ entry... >> >> Thanks >> Jody >> >> On Thu, Apr 23, 2009 at 9:12 AM, Daniel Spångberg <dani...@mkem.uu.se> >> wrote: >>> >>> I have used vprof, which is free, and also works well with openmpi: >>> http://sourceforge.net/projects/vprof/ >>> >>> One might need slight code modifications to get output, depending on >>> compilers used, such as adding >>> vmon_begin(); >>> to start profiling and >>> vmon_done_task(rank); >>> to end profiling where rank is the MPI rank integer. >>> >>> vprof can also use papi, but I have not (yet) tried this. >>> >>> Daniel Spångberg >>> >>> >>> Den 2009-04-23 02:00:01 skrev Brock Palen <bro...@umich.edu>: >>> >>>> There is a tool (not free) That I have liked that works great with >>>> OMPI, >>>> and can use gprof information. >>>> >>>> http://www.allinea.com/index.php?page=74 >>>> >>>> Also I am not sure but Tau (which is free) Might support some gprof >>>> hooks. >>>> http://www.cs.uoregon.edu/research/tau/home.php >>>> >>>> Brock Palen >>>> www.umich.edu/~brockp >>>> Center for Advanced Computing >>>> bro...@umich.edu >>>> (734)936-1985 >>>> >>>> >>>> >>>> On Apr 22, 2009, at 7:37 PM, jgans wrote: >>>> >>>>> Hi, >>>>> >>>>> Yes you can profile MPI applications by compiling with -pg. However, by >>>>> default each process will produce an output file called "gmon.out", >>>>> which is >>>>> a problem if all processes are writing to the same global file system >>>>> (i.e. >>>>> all processes will try to write to the same file). >>>>> >>>>> There is an undocumented feature of gprof that allows you to specify >>>>> the >>>>> filename for profiling output via the environment variable >>>>> GMON_OUT_PREFIX. >>>>> For example, one can set this variable in the .bashrc file for every >>>>> node to >>>>> insure unique profile filenames, i.e.: >>>>> >>>>> export GMON_OUT_PREFIX='gmon.out-'`/bin/uname -n` >>>>> >>>>> The filename will appear as GMON_OUT_PREFIX.pid, where pid is the >>>>> process >>>>> id on a given node (so this will work when multiple nodes are contained >>>>> in a >>>>> single host). >>>>> >>>>> Regards, >>>>> >>>>> Jason >>>>> >>>>> Tiago Almeida wrote: >>>>>> >>>>>> Hi, >>>>>> I've never done this, but I believe that an executable compiled with >>>>>> profilling support (-pg) will generate the gmon.out file in its >>>>>> current >>>>>> directory, regardless of running under MPI or not. So I think that >>>>>> you'll >>>>>> have a gmon.out on each node and therefore you can "gprof" them >>>>>> independently. >>>>>> >>>>>> Best regards, >>>>>> Tiago Almeida >>>>>> --------------------------------- >>>>>> jody wrote: >>>>>>> >>>>>>> Hi >>>>>>> I wanted to profile my application using gprof, and proceeded like >>>>>>> when profiling a normal application: >>>>>>> - compile everything with option -pg >>>>>>> - run application >>>>>>> - call gprof >>>>>>> This returns a normal-looking output, but i don't know >>>>>>> whether this is the data for node 0 only or accumulated for all >>>>>>> nodes. >>>>>>> >>>>>>> Does anybody have experience in profiling parallel applications? >>>>>>> Is there a way to have profile data for each node separately? >>>>>>> If not, is there another profiling tool which can? >>>>>>> >>>>>>> Thank You >>>>>>> Jody >>>>>>> _______________________________________________ >>>>>>> users mailing list >>>>>>> us...@open-mpi.org >>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> users mailing list >>>>>> us...@open-mpi.org >>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>>> >>>>> _______________________________________________ >>>>> users mailing list >>>>> us...@open-mpi.org >>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>> >>>>> >>>> >>>> _______________________________________________ >>>> users mailing list >>>> us...@open-mpi.org >>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>> >>> >>> >>> -- >>> Daniel Spångberg >>> Materialkemi >>> Uppsala Universitet >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > > > -- > Daniel Spångberg > Materialkemi > Uppsala Universitet > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
