Developer Reference

impi_info

Provides information on available Intel® MPI Library environment variables.
Syntax
impi_info <options>
Arguments
<options>
List of options.
-a | -all
Show all IMPI variables.
-h | -help
Show a help message.
-v | -variable
Show all available variables or description of the specified variable.
-c | -category
Show all available categories or variables of the specified category.
-e | -expert
Show all expert variables.
Description
The
impi_info
utility provides information on environment variables available in the Intel MPI Library. For each variable, it prints out the name, the default value, and the value data type. By default, a reduced list of variables is displayed. Use the  
-all
option to display all available variables with their descriptions.
The example of the
impi_info
output:
$ ./impi_info
| NAME                                   | DEFAULT VALUE | DATA TYPE   | ======================================================================== | I_MPI_THREAD_SPLIT                     | 0             | MPI_INT     | | I_MPI_THREAD_RUNTIME                   | none          | MPI_CHAR    | | I_MPI_THREAD_MAX                       | -1            | MPI_INT     | | I_MPI_THREAD_ID_KEY                    | thread_id     | MPI_CHAR    |

Product and Performance Information

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Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.