int32_t mpiSqNodeSegmentUserDataSet(MPISqNode                 node,
                                 int32_t                      segment,
MPISqNodeSegmentUserData *data);

Required Header: stdmpi.h
Change History: Added in the 03.02.00


Modules attached to a SQID node have a small section of non-volatile memory that can be used for any purpose by the user. mpiSqNodeSegmentUserDataSet changes the user data stored on a segment on a SynqNet node.

node a handle to a SynqNet node object.
segment the index of the slice/module attached to this SynqNet node.
For more information, please see the Overview of MPI I/O.
data a pointer to the new user data.
Return Values

Sample Code

The following MPI code changes the contents on the non-volatile memory to a string:

MPISqNodeSegmentUserData nodeData;
strncpy(, “test” , MPISqNodeUserDATA_CHAR_MAX);
mpiSqNodeSegmentUserDataSet(sqNode1, 0,&nodeData);

See Also

mpiSqNodeSegmentUserDataGet | MPI Overview I/O: User Data | Overview of MPI I/O