Developer Guide for Intel® oneAPI Math Kernel Library for Windows*

Developer Guide

Contents

Version Information Line

In the
Intel® oneAPI Math Kernel Library
 Verbose mode, the first call to a verbose-enabled function prints a version information 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 version information line and provides available links for more information:
Information
Description
Related Links
Intel® oneAPI Math Kernel Library
 version.
This information is separated by a comma from the rest of the line.
Operating system.
Possible values:
  • Lnx
     for Linux* OS
  • Win
     for Windows* OS
  • OSX
     for macOS*
The host CPU frequency.
Intel® oneAPI Math Kernel Library
 interface layer used by the application.
Possible values:
  • cdecl
  • lp64
     or
    ilp64
     on systems based on the Intel® 64 architecture.
Intel® oneAPI Math Kernel Library
 threading layer used by the application.
Possible values:
intel_thread
,
tbb_thread,
or
sequential
.
The following is an example of a version information line:
MKL_VERBOSE Intel(R) MKL 11.2 Beta build 20131126 for Intel(R) 64 architecture Intel(R) Advanced Vector Extensions (Intel(R) AVX) Enabled Processor,
Win
 3.10GHz lp64 intel_thread

GPU Information Line

In
Intel® oneAPI Math Kernel Library
 Verbose mode for GPU applications, the first call to a verbose-enabled function prints out the GPU information line or lines for all detected GPU devices, each in a separate line. The line begins with the
MKL_VERBOSE Detected
 character string and uses spaces as delimiters. The format of the rest of the line may change in a future release.
Only Intel® GPU is supported.
The following table lists information contained in a GPU information line.
Information
Description
GPU index
The index of the GPU device will be printed after the character string "GPU" (e.g. GPU0, GPU1, GPU2, etc). This GPU index will be used as a nickname of the device in call description lines to refer to the device.
Intel® GPU architecture
The value can be one of the following:
  • Intel(R) Gen9
  • Intel(R) Xe-LP
  • Intel(R) Xe-HP
  • Intel(R) Xe-HPG
  • Unknown GPU
Runtime backend
The value printed is prefixed with
Backend:
Vector Engine number
The value printed is prefixed with
VE:
Stack number
The value printed is prefixed with
Stack:
Maximum workgroup size
The value printed is prefixed with
maxWGsize:
The following is an example of a GPU information line: 
MKL_VERBOSE Detected GPU0 Intel(R)_Gen9 Backend:OpenCL VE:72 Stack:1 maxWGsize:256

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.