---
 title: 'Intel MPI Library'
 taxonomy:
     category:
         - docs
 external_links:
     process: true
     no_follow: true
     target: _blank
     mode: active
 ---
 
 [toc]
 
 ## Environment Settings{#enviroment}
 ### Software Version and System Requirements{#version}

 Version    | Module file Name | System A | System B/C  | System G  | Cloud System| Notes
 --- | --- | --- | --- | --- | --- | ---

 2024.0 | intel/2024.0 | + | +| - | + | Introduced in April 2024. Intel compiler + MKL + TBB
 2023.2 (default)  | intel/2023.2 | + | +| - | + | Introduced in April 2024. Intel compiler + MKL + TBB
 2023.2-rt | intel/2023.2-rt | + | +| - | + | Introduced in April 2024. runtime libraries

 2023.1 | intel/2023.1 | + | + | - | + | Introduced in August 2023.
 2023.1-rt | intel/2023.1-rt | + | + | - | + | Introduced in August 2023. runtime libraries
 2022.3 | intelmpi/2022.3 | + | + | - | + | Introduced in November 2022
 2022.3-rt | intelmpi/2022.3-rt | + | + | - | + | Introduced in November 2022. runtime library

 
 <!--
 注：Intel CompilerとIntel MPIのバージョンは一致しない場合があります
 -->
 
 \+ ： Available for all users  
 \- ： Not available
 
 <!--
 コンパイラとして、 [Intelコンパイラ](/compilers/intel) または [GNUコンパイラ](/compilers/gnu) を利用します。システムにログインした時点では、Intelコンパイラがデフォルトで利用できるようになっています。GNUコンパイラを利用される場合は、以下のようにmoduleコマンドを実行し、コンパイラを切り替えてください。
 
 ```nohighlight
 $ module switch PrgEnvIntel PrgEnvGCC
 ```
 
 Intel MPIライブラリのバージョンを切り替えたい場合は、以下のようにmoduleコマンドを実行してください。
 
 ```nohighlight
 $ module switch impi/4.1.0 impi/4.0.3
 ```
 
 moduleコマンドの詳細は [Modules](/config/modules) をご覧ください。
 -->
 
 ### Level of Thread Parallel Support{#threadsafe}
 
 The thread parallel support level available in  Intel MPI is MPI_THREAD_MULTIPLE. MPI functions can be called from each thread with no restriction.
 
 ## How to Compile and Execute{#usage}
 
 ### How to Compile{#compile}
 
 **Compile commands (Intel compiler)**
 
 Language |  Command   | Operands                            
 --------- | --------- | ----------------------------
  Fortran |  mpiifort |  mpiifort Option File Name
  C |        mpiicc |    mpiicc Option File Name
  C++ |      mpiicpc |   mpiicpc Option File Name
 **Compile Commands（GNU compiler）**
 
 Language |  Command   | Operands                            
 --------- | -------- | --------------------------
  Fortran 95 |  mpif90  |  mpif90 Option File Name
  Fortran 77 | mpif77 | mpif77 Option File Name
  C |        mpigcc |    mpicc Option File Name
  C++ |      mpigcxx |   mpicxx Option File Name
 
 **Examples of Compiling**
 
 ```nohighlight
 $ mpiifort -O3 -parallel sample_mpi.f90
 ```
 <!--
 ### オプション{#option}
 
 Intel MPI のコンパイラでは、 [Intelコンパイラのオプション](/compilers/intel#option) を利用することができます。ただし、オプション -static については利用できません。
 
 * **主要オプション（並列化、最適化など）**
 
     オプション名      |  説明                 
     ------------ | -------------------
     -static_mpi |  MPIライブラリを静的にリンクします。
 -->
 
 ### How to Execute{#exec}
 
 To execute the compiled MPI program, use **tssrun** command for interactive processing and **srun** for batch processing. For both interactive processing and batch processing, the number of parallelism is specified by the --rsc option argument p. Please refer to [sample](#sample) for details.
 
 **Example (interactive processing)**
 ```nohighlight
 $ tssrun --rsc p=2 ./a.out
 ```
 
 ## Sampl{#sample}
 ### MPI program execution with interactive processing{#tss}
 Please refer to the [Interactive Processing](/run/interactive) for details on the execution with interactive processing.
 
 * **Execute in 8 parallels**
 
 ```nohighlight
 $ tssrun --rsc p=8 ./a.out
 ```
 
 * **Execute in combination with thread parallelism（MPI 4 parallel, OpenMP 8 parallel）**
 
 ```nohighlight
 $ tssrun --rsc p=4:t=8:c=8 ./a.out
 ```
 
 ### MPI program execution in batch{#slurm}
 Please refer to the [batch processing](/run/batch) for details on the batch execution.
 
 * **Execute in 8 parallels**
 
 ```nohighlight
 $ cat sample.sh
 #!/bin/bash
 #============ SBATCH Directives =======
 #SBATCH -p gr19999b
 #SBATCH -t 1:0:0
 #SBATCH --rsc p=8
 #SBATCH -o %x.%A.out
 
 #============ Shell Script ============
 srun ./a.out
 $ sbatch sample.sh
 ```
 
 * **Execute in combination with thread parallelism（MPI 4 parallel, OpenMP 8 parallel）**
 
 ```nohighlight
 $ cat sample.sh
 #!/bin/bash
 #============ SBATCH Directives =======
 #SBATCH -p gr19999b
 #SBATCH -t 1:0:0
 #SBATCH --rsc p=4:t=8:c=8:m=8G
 #SBATCH -o %x.%A.out
 
 #============ Shell Script ============
 srun ./a.out
 $ sbatch sample.sh
 ```
 
 ## Manual{#manual}
 * [Intel MPI Library Developer Guide for Linux* OS Developer Guide](https://www.intel.com/content/www/us/en/develop/documentation/mpi-developer-guide-linux/top.html)
 * [Intel MPI Library Developer Guide for Linux* OS Developer Reference](https://www.intel.com/content/www/us/en/develop/documentation/mpi-developer-reference-linux/top.html)
 
 <!--
 ### Ver 5.1
 
 * [Intel MPI Library for Linux OS Reference Manual](https://web.kudpc.kyoto-u.ac.jp/Compiler_Manual/Intel/Intel_MPI_5.1/Reference_Manual.pdf)
 * [Intel MPI Library for Linux OS User Guide](https://web.kudpc.kyoto-u.ac.jp/Compiler_Manual/Intel/Intel_MPI_5.1/User_Guide.pdf)
 
 ### Ver 2018
 
 * [Intel MPI Library for Linux OS Developer Reference](https://web.kudpc.kyoto-u.ac.jp/Compiler_Manual/Intel/Intel_MPI_2018/intelmpi-2018-developer-reference-linux.pdf)
 * [Intel MPI Library for Linux OS Developer Guide](https://web.kudpc.kyoto-u.ac.jp/Compiler_Manual/Intel/Intel_MPI_2018/intelmpi-2018-developer-guide-linux.pdf)
 
 ### Ver 2019
 
 * [Intel MPI Library for Linux OS Developer Reference](https://web.kudpc.kyoto-u.ac.jp/Compiler_Manual/Intel/intel_parallel_studio_xe_2019_3/en/mpi/mpi_dev_reference_lin/index.htm)
 * [Intel MPI Library for Linux OS Developer Guide](https://web.kudpc.kyoto-u.ac.jp/Compiler_Manual/Intel/intel_parallel_studio_xe_2019_3/en/mpi/mpi_dev_guide_lin/index.htm)
 -->
 
 ## Link{#link}
 
 * [Intel MPI Library](https://www.intel.com/content/www/us/en/developer/tools/oneapi/mpi-library.html)