Getting Started - POOMA Profiling

Profiling POOMA Applications allows the user to identify bottlenecks within the application and receive function profiling information for templated functions.

Settings

Check out the latest Pooma version :

% setenv CVSROOT /home/POOMA/framework % setenv POOMA_ROOT /users//rs/pooma/r1 % setenv POOMA_ARCH O2K64 % cd $POOMA_ROOT % cvs update -d

On ASCI BlueMountain machines, add to your .cshrc file
set path=($path /usr/local/packages/tau/bin/sgi8k)
On the ACL Linux SMP Cluster, add to your .cshrc file
set path=($path /usr/local/packages/tau/bin/i386_linux)
The Tau distribution may be copied to other architectures.

Using conf

Configure using PROFILE options in conf. The options are :

PROFILE -- Enable Profiling (default time profiling)
PROFILECOUNTERS -- Enable SGI Hardware Counters Profiling (instead of time)
PROFILECALLS -- Profile each invocation of every profiled function
PROFILESTATS -- Calculate standard deviation of exclusive time/counter

Use either PROFILE or PROFILECOUNTERS. PROFILECALLS and/or PROFILESTATS can be added to either. If PROFILESTATS is used without PROFILE or PROFILECOUNTERS, it uses the default PROFILE (time profiling) option.
For e.g.,
% conf O2K64 MPI 72BETA PROFILE
or
% conf O2K64 MPI KAI_NEW PROFILECOUNTERS
or
% conf O2K64 MPI KAI_NEW PROFILE PROFILECALLS
or
% conf O2K64 MPI 72BETA PROFILECOUNTERS PROFILECALLS PROFILESTATS