What is ITAC ITAC (included in OneAPI) is a MPI tracer and analyer for intelmpi, if your program can be compiled with Intel MPI, then you can get a detailed MPI trace data by ITAC. How to use ITAC setup for tracing module use /scinet/intel/oneapi/2021u4/itac/latest/modulefiles module load itac export LD_PRELOAD=/scinet/intel/oneapi/2021u4/itac/latest/slib/libVT.so

Build Program Here are two choices: build program with whatever mpi you want. build program with IntelMPI Modify Sbatch Script add paths and set env module load intel/2019u4 ... . $INTEL_ROOT/vtune_amplifier/amplxe-vars.sh