Performance Regions Library

A high-performance library for measuring and profiling different code regions, supporting both wallclock time and hardware performance counters through PAPI.

Features

• Region-based performance measurement: Mark and measure specific code sections
• Multiple measurement backends: POSIX timers and PAPI hardware counters
• Multi-language support: C and Fortran APIs
• MPI support: Parallel performance profiling capabilities

Dependencies

Required

• C compiler (gcc, clang)
• Fortran compiler (gfortran, ifort)
• Python 3 (for instrumentation scripts)

Optional

• MPI: For parallel applications (enabled by default)
• PAPI: For hardware performance counters

Building

The library supports three build methods: autotools-style configure script (recommended for most users), modern CMake, and traditional Makefiles.

Autotools-style Configure Script (Recommended)

The most familiar way for users accustomed to autotools:

Quick Start

# Configure, build and install
./configure
make
sudo make install

# Or use helper scripts
./configure
./build.sh      # Build the project
sudo ./install.sh  # Install the project