m3y54m / hello-papi

Getting started with PAPI library

Getting Started with PAPI Library in C

Basic commands for using PAPI library in your C program. (Tested on Ubuntu 20.04)

Download PAPI library source code

cd /home
wget http://icl.utk.edu/projects/papi/downloads/papi-6.0.0.tar.gz

Extract source code

tar -xvf papi-6.0.0.tar.gz
cd papi-6.0.0

Build PAPI binaries

cd src
./configure --prefix=$PWD/install
make && make install

Test binaries

cd install/bin
./papi_avail
sudo sh -c 'echo -1 >/proc/sys/kernel/perf_event_paranoid'
./papi_avail

Execute a test example

cd ../../src/ctests
./serial_hl

Add PAPI library environment variables

export PAPI_DIR=/home/papi-6.0.0/src/install
export PATH=${PAPI_DIR}/bin:$PATH
export LD_LIBRARY_PATH=${PAPI_DIR}/lib:$LD_LIBRARY_PATH

Check if PAPI binaries are added to environment variables

papi_avail
papi_mem_info

Write and build first PAPI code

cd /home
mkdir hello_papi
vim hello_papi.c
gcc hello_papi.c -I/${PAPI_DIR}/include -L/${PAPI_DIR}/lib -o hello_papi -lpapi
./hello_papi