Scroll to navigation

MPI_T_PVAR_SESSION_FREE(3) Open MPI MPI_T_PVAR_SESSION_FREE(3)

NAME

MPI_T_pvar_session_free - UNKNOWN

MPI_T_pvar_session_create <#mpi-t-pvar-session-create>, MPI_T_pvar_session_free - Create/free performance variable session

SYNTAX

C Syntax

int MPI_T_pvar_session_create(MPI_T_pvar_session* pe_session)
int MPI_T_pvar_session_free(MPI_T_pvar_session* pe_session)


DESCRIPTION

MPI_T_pvar_session_create <#mpi-t-pvar-session-create> creates a session for accessing performance variables. The new session is returned in the session parameter.

MPI_T_pvar_session_free releases a session allocated by MPI_T_pvar_session_create <#mpi-t-pvar-session-create> and sets the session parameter to MPI_T_PVAR_SESSION_NULL.

ERRORS

MPI_T_pvar_session_create <#mpi-t-pvar-session-create> will fail if:

  • MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized
  • MPI_T_ERR_MEMORY: Out of memory
  • MPI_T_ERR_OUT_OF_SESSIONS: No more sessions available

MPI_T_pvar_session_free will fail if:

  • MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized
  • MPI_T_ERR_INVALID_SESSION: The session parameter is not a valid session

Author

The Open MPI community

Copyright

2003-2026, The Open MPI Community

October 13, 2026