Abstract
The advent and acceptance of massively parallel machines has made
it increasingly important to have tools to analyze the performance
of programs run ning on these machines. Current day performance
tools suffer from two drawbacks: they are not scalable and they
lose specific information about the user program in their attempt
for generality. In this paper, we present Projections, a scalable
performance tool, for Charm that can provide program-specific
information to help the users better understand the behavior of
their programs.