Call Description Line

In Intel MKL Verbose mode, each verbose-enabled function called from your application prints a call description line. The line begins with the MKL_VERBOSE character string and uses spaces as delimiters. The format of the rest of the line may change in a future release.

The following table lists information contained in a call description line and provides available links for more information:

Information	Description	Related Links
The name of the function.	Although the name printed may differ from the name used in the source code of the application (for example, the cblas_ prefix of CBLAS functions is not printed), you can easily recognize the function by the printed name.
Values of the arguments.	The values are listed in the order of the formal argument list. The list directly follows the function name, it is parenthesized and comma-separated. Arrays are printed as addresses (to see the alignment of the data). Integer scalar parameters passed by reference are printed by value. Zero values are printed for NULL references. Character values are printed without quotes. For all parameters passed by reference, the values printed are the values returned by the function. For example, the printed value of the info parameter of a LAPACK function is its value after the function execution.
Time taken by the function.	The time is printed in convenient units (seconds, milliseconds, and so on), which are explicitly indicated. The time may fluctuate from run to run. The time printed may occasionally be larger than the time actually taken by the function call, especially for small problem sizes and multi-socket machines. To reduce this effect, bind threads that call Intel MKL to CPU cores by setting an affinity mask.	Managing Multi-core Performance for options to set an affinity mask.
Value of the MKL_CBWR environment variable.	The value printed is prefixed with `CNR:`	Getting Started with Conditional Numerical Reproducibility
Value of the MKL_DYNAMIC environment variable.	The value printed is prefixed with `Dyn:`	MKL_DYNAMIC
Status of the Intel MKL memory manager.	The value printed is prefixed with `FastMM:`	Avoiding Memory Leaks in Intel MKL for a description of the Intel MKL memory manager
OpenMP* thread number of the calling thread.	The value printed is prefixed with `TID:`
Values of Intel MKL environment variables defining the general and domain-specific numbers of threads, separated by a comma.	The first value printed is prefixed with `NThr:`	Intel MKL-specific Environment Variables for Threading Control
Value of the `MKL_HOST_WORKDIVISION` environment variable.	The value printed is prefixed with `WDiv:HOST:`	Automatic Offload Controls
Values of the `MKL_MIC_<number>_WORKDIVISION` environment variables for each Intel® Xeon Phi™ coprocessor available on the system, where `<number>` is the number of the coprocessor.	The first value printed is prefixed with `WDiv:<number>:`	Automatic Offload Controls

The following is an example of a call description line:

MKL_VERBOSE DGEMM(n,n,1000,1000,240,0x7ffff708bb30,0x7ff2aea4c000,1000,0x7ff28e92b000,240,0x7ffff708bb38,0x7ff28e08d000,1000) 1.66ms CNR:OFF Dyn:1 FastMM:1 TID:0 NThr:16,FFT:2 WDiv:HOST:-1.000 WDiv:0:-1.000 WDiv:1:-1.000

The following information is not printed because of limitations of Intel MKL Verbose mode:

Input values of parameters passed by reference if the values were changed by the function.

For example, if a LAPACK function is called with a workspace query, that is, the value of the lwork parameter equals -1 on input, the call description line prints the result of the query and not -1.
Return values of functions.

For example, the value returned by the function ilaenv is not printed.
Floating-point scalars passed by reference.