- Introduction
- Product Directories
- What's New
- Command-Line Control
- Building Instructions for Linux* OS
- Building Instructions for Windows* OS
- Copyright and License Information
- Notices & Disclaimers
Intel(R) MPI Benchmarks provides a set of elementary benchmarks that conform to MPI-1, MPI-2, and MPI-3 standard. You can run all of the supported benchmarks, or a subset specified in the command line using one executable file. Use command-line parameters to specify various settings, such as time measurement, message lengths, and selection of communicators. For details, see the Intel(R) MPI Benchmarks User's Guide located at: https://www.intel.com/content/www/us/en/docs/mpi-library/user-guide-benchmarks/2021-2/overview.html
By default, Intel(R) MPI Benchmarks is installed at:
- C:\Program Files (x86)\IntelSWTools\imb on Windows* OS
- /opt/intel/imb on Linux* OS
Before using the Intel(R) MPI Benchmarks, please read the license agreements located in the imb/license directory.
After a successful installation of Intel(R) MPI Benchmarks, the following files and folders appear on your system:
+-- \imb Intel(R) MPI Benchmarks product directory
|
+-- \src_c Product source "C" code and Makefiles.
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+-- \license Product license files.
| |
| +--license.txt Source code license granted to you.
| |
| +--use-of-trademark-license.txt License file describing the
| use of the Intel(R) MPI
| Benchmarks name and trademark.
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+-- \src_cpp Product source "CPP" code and Makefiles.
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+-- \WINDOWS Microsoft* Visual Studio* project files.
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+-- Readme_IMB.txt Readme file providing the basic information
about the product (this file).
- Migration to icx,icpx compiler
- IMB-MPI1: FP16/BF16 data_type support
- Bug fixes
- IMB-MPI1-GPU benchmark. Dynamically loading from LD_LIBRARY_PATH cuda or level zero library.
- Bug fixes.
- License update
- Bug fixes.
- Bug fixes.
- Change default value for mem_alloc_type to device
- License update
- Bug fixes.
- New IMB-MPI1-GPU benchmarks (Technical Preview). The benchmarks implement the GPU version of the IMB-MPI1
- Added -msg_pause option.
- Changed default window_size 64 -> 256
- Bug fixes.
- Added -window_size option for IMB-MPI1
- Added copyrights for *.exe
- Bug fixes.
- New IMB-P2P Stencil2D and Stencil3D benchmarks.
- Bug fixes.
- Added Visual Studio projects for IMB-P2P
- Bug fixes.
- Bug fixes.
- Added the warm_up option that enabled additional cycles before running benchmark(for all size.)
- Added a new benchmark Reduce_local for IMB-MPI1.
- Bug fixes.
- New IMB-P2P benchmarks.
- Added the Reduce_local benchmark for IMB-MPI1.
- Deleted the alignment option (-alignment).
- Bug fixes.
- Code cleanup.
- Added the Reduce_scatter_block benchmark for IMB-MPI1.
- Added the aggregate_mode option that specifies the mode for IMB-IO, IMB-EXT and IMB-RMA.
- Added the alignment option that controls buffer alignment.
- Updated the following options:
- -data_type now supports double.
- -red_data_type now supports double.
- New IMB-MT benchmarks. The benchmarks implement the multi-threaded version of IMB-MPI1 benchmarks using the OpenMP* paradigm.
- New benchmarks infrastructure for easier benchmarks extension is implemented in C++ (See the guide: https://www.intel.com/content/www/us/en/developer/articles/technical/creating-custom-benchmarks-for-imb-2019.html?wapkw=creating-custom-benchmarks-for-imb-2019). The IMB-MPI1, IMB-RMA, IMB-NBC, IMB-EXT, IMB-IO, and IMB-MT implementation is now based on the new C++ infrastructure. The legacy infrastructure is preserved in the src_c subdirectory.
- Syntax changes for the -include and -exclude options. Benchmarks to include and exclude now must be separated by a comma rather than a space. Benchmarks to launch can be separated by a comma or a space.
- Iteration policy can no longer be set with the -iter option. Use the -iter_policy instead.
- Added a new benchmark BarrierMT for IMB-MT.
- Added new options:
- -noheader for IMB-MT disables printing of benchmark headers.
- -data_type for IMB-MPI1 specifies the type to be used for communication.
- -red_data_type for IMB-MPI1 specifies the type to be used for reduction.
- -contig_type for IMB-MPI1 specifies the type to be used.
- -zero_size for IMB-MPI1 disable runs with message size 0.
- Bug fixes.
- Code cleanup.
- Support for the Microsoft* Visual Studio* 2017. Microsoft* Visual Studio* 2012 support is removed.
- Product documentation is now available online only at: https://www.intel.com/content/www/us/en/docs/mpi-library/user-guide-benchmarks/2021-2/overview.html
- Removed support of the Intel(R) Xeon Phi(TM) coprocessors (formerly code named Knights Corner).
- Added a new option -imb_barrier.
- The PingPong and PingPing benchmarks are now equivalent to PingPongSpecificSource and PingPingSpecificSource, respectively. Their old behavior (with MPI_ANY_SOURCE) is available in PingPongAnySource and PingPingAnySource.
- Changed default values for the -sync and -root_shift options.
- Support for the Microsoft* Visual Studio* 2015. Microsoft* Visual Studio* 2010 support is removed.
- Bug fixes.
- Bug fixes.
- Introduced two new benchmarks: uniband and biband.
- Introduced two new command-line options for collective benchmarks: -sync and -root_shift.
- Fix of a bug where benchmarking was failing on certain message lengths with -DCHECK.
- Fix of a bug where benchmarking could continue after the time limit is exceeded.
- Introduced new components IMB-NBC and IMB-RMA that conform to the MPI-3.0 standard. Note: These components can only be built and used with MPI libraries that conform to the MPI-3 standard.
- Added new targets to the Linux* OS Makefiles:
- NBC for building IMB-NBC
- RMA for building IMB-RMA
- Updated Microsoft* Visual Studio* solutions to include the IMB-NBC and IMB-RMA targets.
- Consolidated all first-use documents in ReadMe_IMB.txt to improve usability.
- Introduced a new feature to set the appropriate algorithm for automatic calculation of iterations. The algorithm can be set through the -iter and -iter_policy options.
- Support for the Microsoft* Visual Studio* 2013. Microsoft* Visual Studio* 2008 support is removed.
You can get help on the Intel(R) MPI Benchmarks from the command line using the component name and the -help parameter. For example, for the IMB-MPI1 component, run: IMB-MPI1 -help
You can see the Intel(R) MPI Benchmarks User's Guide for details on the command-line parameters.
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Set the CC variable to point to the appropriate compiler wrapper, mpiicc or mpicc.
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Run one or more Makefile commands below:
make clean - remove legacy binary object files and executable files make IMB-MPI1 - build the executable file for the IMB-MPI1 component make IMB-EXT - build the executable file for one-sided communications benchmarks make IMB-IO - build the executable file for I/O benchmarks make IMB-NBC - build the executable file for IMB-NBC benchmarks make IMB-RMA - build the executable file for IMB-RMA benchmarks make all - build all executable files available
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Run the benchmarks as follows:
mpirun -n <number_of_processes> IMB- [arguments]
where is one of the make targets above. For details, refer to the Intel(R) MPI Benchmarks User's Guide at: https://www.intel.com/content/www/us/en/docs/mpi-library/user-guide-benchmarks/2021-2/overview.html
Use the enclosed solution files located in the component-specific subdirectories under the imb/WINDOWS directory. Click on the respective ".vcproj" or ".vcxproj" project file and use the Microsoft* Visual Studio* menu to run the associated benchmark application.
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Check that the Include, Lib, and Path environment variables are set as follows: %I_MPI_ROOT%\intel64\include %I_MPI_ROOT%\intel64\lib %I_MPI_ROOT%\mpi\intel64\bin The %I_MPI_ROOT% environment variable is set to the Intel(R) MPI Library installation directory.
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Open the ".vcproj" or ".vcxproj" file for the component you would like to build. From the Visual Studio Project panel: a) Change the "Solution Platforms" dialog box to "x64". b) Change the "Solution Configurations" dialog box to "Release". c) Check other settings as required, for example: General > Project Defaults - Set "Character Set" to "Use Multi-Byte Character Set" C/C++ > General - Set "Additional Include Directories" to "$(I_MPI_ROOT)\intel64\include" - Set "Warning Level" to "Level 1 (/W1)" C/C++ > Preprocessor - For the "Preprocessor definitions" within the Visual Studio projects, add the conditional compilation macros WIN_IMB and _CRT_SECURE_NO_DEPRECATE. Depending on the components you intend to use, add one or more of the following macros: MPI1, EXT, MPIIO, NBC, RMA. Linker > Input - Set "Additional Dependencies" to "$(I_MPI_ROOT)\intel64\lib\impi.lib". Make sure to add quotes.
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Use F7 or Build > Build Solution to create an executable.
For details, refer to the Intel(R) MPI Benchmarks User's Guide at: https://www.intel.com/content/www/us/en/docs/mpi-library/user-guide-benchmarks/2021-2/overview.html
See the license files in the imb/license directory.
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