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MPI_T_SOURCE_GET_INFO(3) Open MPI MPI_T_SOURCE_GET_INFO(3)

NAME

MPI_T_source_get_info - Query information from a source

MPI_T_source_get_info — Query information from a source

INPUT PARAMETERS

•
source_index: Index of the source to be queried.

INPUT/OUTPUT PARAMETERS

  • name_len: Length of the string and/or buffer for name.
  • desc_len: Length of the string and/or buffer for desc.

OUTPUT PARAMETERS

  • name: Buffer to return the string containing the name of the source.
  • desc: Buffer to return the string containing the description of the source.
  • ordering: Flag indicating chronological ordering guarantees given by the source.
  • ticks_per_second: The number of ticks per second for the timer of this source.
  • max_ticks: The maximum count of ticks reported by this source before overflow occurs.
  • info: Info argument.

DESCRIPTION

MPI_T_source_get_info can be used to query information from a source.

ERRORS

MPI_T_source_get_info will fail if:

  • MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized
  • MPI_T_ERR_INVALID_INDEX: The source index is invalid

See also:

  • MPI_T_Events <#mpi-t-events>
  • MPI_T <#mpi-t>



Author

The Open MPI community

Copyright

2003-2026, The Open MPI Community

October 18, 2026