Math Kernel Library Developer Guide
When building applications that callIntel® oneAPI Math Kernel Library functions, it may be useful to determine:
You can get an application to print this information to a standard output device by enabling Intel® oneAPI Math Kernel Library Verbose. Functions that can print this information are referred to as verbose-enabled functions.
When Verbose mode is activein an Intel® oneAPI Math Kernel Library domain, every call of a verbose-enabled function finishes with printing a human-readable line describing the call. However, if your application gets terminated for some reason during the function call, no information for that function will be printed. The first call to a verbose-enabled function also prints a version information line.
To enable the Intel® oneAPI Math Kernel Library Verbose mode for an application, do one of the following:
To disable the Intel® oneAPI Math Kernel Library Verbose mode,call the mkl_verbose(0) function.Both enabling and disabling of the Verbose mode using the function call takes precedence over the environment setting. For a full description of the mkl_verbose function, see either the Intel® oneAPI Math Kernel Library Developer Reference for C or theIntel® oneAPI Math Kernel Library Developer Reference for Fortran.Both references are available in the Intel® Software Documentation Library.
You can enable Intel® oneAPI Math Kernel Library Verbose mode in these domains:
Intel® oneAPI Math Kernel Library Verbose mode is not a thread-local but a global state. In other words, if an application changes the mode from multiple threads, the result is undefined.
The performance of an application may degrade with the Verbose mode enabled, especially when the number of calls to verbose-enabled functions is large, because every call to a verbose-enabled function requires an output operation.