ATPESC15: Intuitive Performance Engineering at the Exascale with TAU and TAU Commander

Materials

• Slides (PPTX) (PDF)

• Workshop Examples

Using TAU on Argonne systems

1. Choose an appropriate TAU_MAKEFILE:

   % soft add +tau-latest
   % export TAU_MAKEFILE=/soft/perftools/tau/tau_latest/bgq/lib/Makefile.tau-bgqtimers-mpi-pdt
   % export TAU_OPTIONS='-optVerbose' # (see tau_compiler.sh -help for more options)
   

2. Use tau_f90.sh, tau_cxx.sh, etc. as Fortran, C++, etc. compiler:

   % mpixlf90_r foo.f90
   

   changes to

   % tau_f90.sh foo.f90
   

3. Execute application:

   % qsub –A  –q R.bc –n 256 –t 10 ./a.out
   

   Note: If TAU_MAKEFILE has “papi” in its name, set TAU_METRICS:

   % qsub --env TAU_METRICS=BGQ_TIMERS:PAPI_L2_DCM ...
   

4. Analyze performance data:
   • pprof (for text based profile display)
   • paraprof (for GUI)

Getting Started with Workshop Files

% ssh mira.alcf.anl.gov
% tar xvzf /soft/perftools/tau/workshop.tgz
% cd workshop
% less README