Detailed explanation of centos installation openmpi

The tutorial column of centos below will give you a detailed explanation of centos installation openmpi. I hope it will be helpful to friends in need!

1 Download the openmpi source code

provided through the official website Download address: https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.0.tar.gz, download version 3.1 of openmpi, execute the following command on the command line, it will Download the openmpi-3.1.0.tar.gz file to the current directory:

$ wget https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.0.tar.gz

2 Unzip the openmpi source code

Enter the directory where the openmpi-3.1.0.tar.gz file is located and execute the following command Unzip the source code:

$ tar -zxvf openmpi-3.1.0.tar.gz

3 Install openmpi

After decompression, follow the standard installation steps of Linux software: ./configure && make && make install, install openmpi, steps As follows:

$ cd openmpi-3.1.0/
$ ./configure
$ make && make install

4 Verify the installation

After the installation is completed, enter the examples directory under the openmpi-3.1.0 directory, execute the make command to compile the example program, and verify whether openmpi is successfully installed by running the example program , as shown below:

$ cd examples/
$ make
$ ./hello_c
Hello, world, I am 0 of 1, (Open MPI v3.1.0, package: Open MPI root@ssli_centos7 Distribution, ident: 3.1.0, repo rev: v3.1.0, May 07, 2018, 112)

The sample program runs correctly, indicating that the installation is successful.

1 Download the openmpi source code

Download address provided through the official website: https://download .open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.0.tar.gz, download version 3.1 of openmpi, and execute the following command on the command line, openmpi-3.1.0.tar. Download the gz file to the current directory:

$ wget https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.0.tar.gz

2 Decompress the openmpi source code

Enter the directory where the openmpi-3.1.0.tar.gz file is located, and execute the following command to decompress the source code:

$ tar -zxvf openmpi-3.1.0.tar.gz

3 Install openmpi

After decompression, follow the standard installation steps of Linux software: ./configure && make && make install, install openmpi, the steps are as follows:

$ cd openmpi-3.1.0/
$ ./configure
$ make && make install

4 Verify the installation

After the installation is completed, enter the examples directory under the openmpi-3.1.0 directory, execute the make command to compile the example program, and verify whether openmpi is successfully installed by running the example program, as shown below:

$ cd examples/
$ make
$ ./hello_c
Hello, world, I am 0 of 1, (Open MPI v3.1.0, package: Open MPI root@ssli_centos7 Distribution, ident: 3.1.0, repo rev: v3.1.0, May 07, 2018, 112)

The sample program runs correctly, indicating that the installation is successful.

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