This Reference Manual helps an experienced user understand the full functionality of the Intel® MPI Library.
Hydra Service agent.
hydra_service.exe [ -install | -regserver ] [ -start ] [ -stop ] \
[ -remove | -unregister | -uninstall ] [ -register_spn ]
Install the hydra service
To enable the delegation in the Active Directory* do the following:
Log in on the domain controller under the admin account
Enable the delegation for cluster nodes:
Open the Computers list in the Active Directory Users and Computers administrative utility
Right click on a desired computer object and select Properties
Define the DAPL provider to load.
Define the name of DAPL provider to load
The Intel® MPI Library provides enhanced security options for the loading of Dynamic Link Libraries*. You can enable the enhanced security mode for the dynamic library loading, as well as define a set of directories in which the library will attempt to locate an external DLL*.
The security options are placed in the HKEY_LOCAL_MACHINE\Software\Intel\MPI protected Windows* registry key. The location prevents the options from being changed with non-administrative privileges.
If you need to debug your application, add the -g option. In this case debug information is added to the binary. You can use any debugger to debug the application.
$ mpiicc -g test.c -o testc
If you want to collect statistics on MPI functions used in your application, you can set the I_MPI_STATS environment variable to a number, between 1 to 10. This environment variable controls the amount of statistics information collected and the output to the log file. By default, no statistics are gathered.
For details, see Statistics Gathering Mode in Intel® MPI Library Reference Manual for Linux* OS.
There is a family of I_MPI_ADJUST_* environment variables that allow you to manually tune the collective operations of the Intel® MPI Library. By setting a range of message sizes and choosing different algorithms, you can improve the performance of your application. For more information, see the I_MPI_ADJUST Family topic in Intel® MPI Library Reference Manual for Linux* OS for details.
Environmental errors may happen when there are problems with the system environment, such as mandatory system services are not running, shared resources are unavailable and so on.
When you encounter environmental errors, check the environment. For example, verify the current state of important services.
librdmacm: Warning: couldn't read ABI version.
librdmacm: Warning: assuming: 4