Enter your password ( not the root password!) when asked. The "sudo" command takes care of this assuming that the corresponding privileges are enabled for your account. This requires root access to modify files in the system directories.
#INSTALL MPI FOR MAC INSTALL#
Open a Terminal window and enter the command: sudo apt-get install libopenmpi-dev Follow the instructions below to install OpenMPI on Ubuntu the procedure for other Unix systems is likely very similar. OpenMPI (not to be confused with OpenMP) is a freely available MPI implementation that is a good choice for supporting multi-processing on small networks, standalone servers and even desktop computers. If either of these commands does NOT show any output, something is wrong.After again lots of output, check the installation by executing the following commands: which mpicxx.If you are prompted for your password, enter it. If this procedure has finished, enter: make allĪgain, many lines of output will appear. Open a Terminal window and navigate to the newly created folder (replace x.x.x with the appropriate version number) with the command: cd ~/Downloads/openmpi-x.x.x.When the download has finished, click on the resulting 'tar' file and it should automatically be unpacked.Download the 'tar.gz' file for the latest stable version.Follow the instructions below to install OpenMPI. OpenMPI (not to be confused with OpenMP) is a freely available MPI implementation that is a good choice in this case. For example: module load cmakeįor testing purposes, it might be useful to run SKIRT in multi-processing mode on a laptop or desktop computer. Use the "module" system to load the MPI implementation and version that matches the compiler used for building the SKIRT code. Large multi-node computing systems will have one or more MPI implementations installed by the system administrator.
#INSTALL MPI FOR MAC CODE#
The SKIRT code requires an MPI implementation that supports standard MPI v2.1 or later. This topic contains the following sections: To enable the multi-processing capabilities of the SKIRT command line program, the host operating system must provide an implementation of the standard Message Passing Interface (MPI), and the SKIRT code must be (re)built with the corresponding build option enabled. See also the concept note on Parallelization. The information below is relevant only if you want to run multiple parallel processes, possibly on multiple compute nodes. Note The SKIRT command line program can always run multiple execution threads within a single process.
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