User`s guide

Using the Intel(R) MPI Library

2.4. Compiling and Linking

(SDK only)

To compile and link an MPI program with the Intel® MPI Library do the following steps:

1. Create a Winxx Console project for Microsoft* Visual Studio*.

2. Choose the x64 solution platform.

3. Add <installdir>\intel64\include to the include path.

4. Add <installdir>\intel64\lib to the library path.

5. Add impi.lib (Release) or impid.lib (Debug) to your target link command for C

applications.

6. Add impi.lib and impicxx.lib (Release) or impid.lib and impicxxd.lib (Debug) to your

target link command for C++ applications.

7. Link application with impimt.lib (Release) or impidmt.lib (Debug) for multithreading.

8. Build a program.

9. Place your application and all the dynamic libraries in a shared location or copy them to all the

nodes.

10. Run the application using the mpiexec.exe command.

2.5. Setting up Hydra Services

Intel® MPI Library uses a scalable process management system (Hydra) job startup mechanism.

To run programs compiled with Microsoft* Visual Studio* (or related), set up an HYDRA service.

NOTE

You should have the administrator privileges to start the Hydra service and all users can launch

processes with mpiexec.

To set up HYDRA services:

1. During the Intel® MPI Library installation the Hydra service is started. During installation you

can cancel the Hydra service startup.

2. You can start, restart, stop or remove the Hydra service manually when the Intel® MPI

Library is installed. Find hydra_service.exe in the <installdir>\intel64\bin.

3. Use the following command on each node of the cluster: hydra_service.exe -remove to

remove the previous Hydra service.

4. Use the following command on each node of the cluster: hydra_service.exe -install to

install the Hydra service manually.