Thread Composability Manager

tcmlib is a Python library by Intel that implements the Thread Composability Manager. It coordinates CPU resource usage between Intel® oneAPI Threading Building Blocks (oneTBB) and Intel® OpenMP to prevent excessive oversubscription when both runtimes are used concurrently within a single process. This helps optimize performance for multi-threaded Python applications, particularly in AI/ML and scientific computing workloads. The library is currently at version 1.4.1 and is actively maintained by Intel.