: The "CCG" in the name likely stands for Custom Code Generation . It allows you to select only the specific mathematical functions (e.g., BLAS, LAPACK, or FFT) needed for your project.
If you are encountering an error related to this file, it usually indicates one of the following: libmklccgdll 2021
: The path to the folder containing the custom library may not be set in your system's PATH environment variable. : The "CCG" in the name likely stands