Difference between revisions of "Install MPI on a MacBook"
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− | --[[User:Thiebaut|D. Thiebaut]] ([[User talk:Thiebaut|talk]]) 12:43, 7 October 2013 (EDT) | + | --[[User:Thiebaut|D. Thiebaut]] ([[User talk:Thiebaut|talk]]) 12:43, 7 October 2013 (EDT)<br /> |
+ | updated --[[User:Thiebaut|D. Thiebaut]] ([[User talk:Thiebaut|talk]]) 16:50, 4 March 2017 (EST) | ||
---- | ---- | ||
+ | {| style="width:100%;" | ||
+ | | | ||
+ | __TOC__ | ||
+ | | | ||
+ | [[Image:OpenMPILogo.png|right|200px]] | ||
+ | |} | ||
+ | |||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
=Download= | =Download= | ||
− | * from [ | + | <br /> |
− | * get the tar. | + | * from [https://www.open-mpi.org/software/ompi/v2.0/ https://www.open-mpi.org/software/ompi/v2.0/] |
+ | * get the tar file openmpi-2.0.2.tar.bz2 (or whichever latest version is the current one). | ||
− | =Install= | + | |
+ | <br /> | ||
+ | =Extract and Install= | ||
+ | <br /> | ||
* Assume that the downloaded file is in your ~/Downloads directory | * Assume that the downloaded file is in your ~/Downloads directory | ||
* Just follow the directions in the INSTALL file, which are summarized below. The installation was done on *my* machine, and assumes the user is '''thiebaut'''. Change and plug-in your own user name. | * Just follow the directions in the INSTALL file, which are summarized below. The installation was done on *my* machine, and assumes the user is '''thiebaut'''. Change and plug-in your own user name. | ||
+ | * open a '''Terminal''' window, and type the following commands in it: | ||
cd | cd | ||
Line 14: | Line 31: | ||
mkdir mpi/download | mkdir mpi/download | ||
cd mpi/download | cd mpi/download | ||
− | mv ../Downloads/openmpi- | + | mv ../Downloads/openmpi-2.0.2.tar.bz2 . |
− | tar -xzvf openmpi- | + | tar -xzvf openmpi-2.0.2.tar.bz2 |
− | cd openmpi- | + | cd openmpi-2.0.2 |
./configure --prefix=/Users/thiebaut/mpi/ (''replace thiebaut by your user name on your Mac) | ./configure --prefix=/Users/thiebaut/mpi/ (''replace thiebaut by your user name on your Mac) | ||
− | The last command will take 10 minutes or so. When it is done, make all and install | + | * The last command will take 10 minutes or so. When it is done, make all and install |
make all install | make all install | ||
− | This last command takes a while as well... | + | * This last command takes a while as well... |
+ | <br /> | ||
+ | |||
+ | ==Update your path== | ||
+ | <br /> | ||
+ | |||
+ | * edit the '''.bash_profile''' file in your main account directory. | ||
+ | * locate the line that reads '''PATH=...''' | ||
+ | * right below this line, add the new line | ||
+ | |||
+ | PATH=$PATH:/Users/thiebaut/mpi/bin/ | ||
+ | |||
+ | * and make sure your replace thiebaut by your account name! | ||
+ | * source your .bash_profile so that the new path is learnt by your system | ||
+ | |||
+ | cd | ||
+ | source .bash_profile | ||
+ | |||
+ | * You are done! | ||
+ | |||
+ | <br /> | ||
+ | =Testing= | ||
+ | <br /> | ||
+ | Create this file in the directory of your choice, and call it '''helloWorld.c''': | ||
+ | <br /> | ||
+ | <source lang="C"> | ||
+ | /* C Example */ | ||
+ | #include <stdio.h> | ||
+ | #include <mpi.h> | ||
+ | |||
+ | |||
+ | int main (argc, argv) | ||
+ | int argc; | ||
+ | char *argv[]; | ||
+ | { | ||
+ | int rank, size; | ||
+ | |||
+ | MPI_Init (&argc, &argv); /* starts MPI */ | ||
+ | MPI_Comm_rank (MPI_COMM_WORLD, &rank); /* get current process id */ | ||
+ | MPI_Comm_size (MPI_COMM_WORLD, &size); /* get number of processes */ | ||
+ | printf( "Hello world from process %d of %d\n", rank, size ); | ||
+ | MPI_Finalize(); | ||
+ | return 0; | ||
+ | } | ||
+ | </source> | ||
+ | <br /> | ||
+ | |||
+ | ==Compile and Run== | ||
+ | <br /> | ||
+ | |||
+ | '''mpicc -o hello helloWorld.c''' | ||
+ | '''mpirun -np 2 ./hello''' | ||
+ | Hello world from process 0 of 2 | ||
+ | Hello world from process 1 of 2 | ||
+ | |||
+ | * If you see the two lines starting with "Hello world" on your screen, MPI was successfully installed on your system! | ||
+ | |||
+ | |||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | <br /> | ||
+ | [[Category:MPI]] |
Latest revision as of 17:55, 4 March 2017
--D. Thiebaut (talk) 12:43, 7 October 2013 (EDT)
updated --D. Thiebaut (talk) 16:50, 4 March 2017 (EST)
Download
- from https://www.open-mpi.org/software/ompi/v2.0/
- get the tar file openmpi-2.0.2.tar.bz2 (or whichever latest version is the current one).
Extract and Install
- Assume that the downloaded file is in your ~/Downloads directory
- Just follow the directions in the INSTALL file, which are summarized below. The installation was done on *my* machine, and assumes the user is thiebaut. Change and plug-in your own user name.
- open a Terminal window, and type the following commands in it:
cd mkdir mpi mkdir mpi/download cd mpi/download mv ../Downloads/openmpi-2.0.2.tar.bz2 . tar -xzvf openmpi-2.0.2.tar.bz2 cd openmpi-2.0.2 ./configure --prefix=/Users/thiebaut/mpi/ (replace thiebaut by your user name on your Mac)
- The last command will take 10 minutes or so. When it is done, make all and install
make all install
- This last command takes a while as well...
Update your path
- edit the .bash_profile file in your main account directory.
- locate the line that reads PATH=...
- right below this line, add the new line
PATH=$PATH:/Users/thiebaut/mpi/bin/
- and make sure your replace thiebaut by your account name!
- source your .bash_profile so that the new path is learnt by your system
cd source .bash_profile
- You are done!
Testing
Create this file in the directory of your choice, and call it helloWorld.c:
/* C Example */
#include <stdio.h>
#include <mpi.h>
int main (argc, argv)
int argc;
char *argv[];
{
int rank, size;
MPI_Init (&argc, &argv); /* starts MPI */
MPI_Comm_rank (MPI_COMM_WORLD, &rank); /* get current process id */
MPI_Comm_size (MPI_COMM_WORLD, &size); /* get number of processes */
printf( "Hello world from process %d of %d\n", rank, size );
MPI_Finalize();
return 0;
}
Compile and Run
mpicc -o hello helloWorld.c mpirun -np 2 ./hello Hello world from process 0 of 2 Hello world from process 1 of 2
- If you see the two lines starting with "Hello world" on your screen, MPI was successfully installed on your system!