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MPI_T_category_changed(3) man page (version 4.1.8)

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This is documentation for an older version of Open MPI. For Open MPI v5.0 documentation, see the current MPI_T_category_changed(3) man page on docs.open-mpi.org.

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Name

MPI_T_category_changed - Get a timestamp for the categories

Syntax

C Syntax


#include <mpi.h>
int MPI_T_category_changed(int *stamp)

Input Parameters

stamp
A virtual time stamp to indicate the last change to the categories.

Description

If two subsequent calls to this routine return the same timestamp, it is guaranteed that no categories have been changed or added. If the timestamp from the second call is higher than some categories have been added or changed.

Errors

MPI_T_category_changed() will fail if:
[MPI_T_ERR_NOT_INITIALIZED]
The MPI Tools interface not initialized


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