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[svn-r268] Revised the comment block of H5Cset_mpi. Also fixed a small bug in

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the same function in the call of MPI_Comm_dup.
This commit is contained in:
Albert Cheng 1998-02-13 10:32:32 -05:00
parent 7cfd4f3872
commit edbd6152fd
1 changed files with 32 additions and 3 deletions
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35
src/H5C.c
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@ -862,9 +862,38 @@ H5Cget_chunk(hid_t tid, int max_ndims, size_t dim[] /*out */ )
/*-------------------------------------------------------------------------
* Function: H5Cset_mpi
*
* Purpose: Sets the access mode for MPIO call and store the user supplied
* communicator and info.
* Signature: herr_t H5Cset_mpi(hid_t tid, MPI_Comm comm, MPI_Info info,
* uintn access_mode)
*
* Purpose: Store the access mode for MPIO call and the user supplied
* communicator and info in the access template which can then
* be used to open file. This function is available only in the
* parallel HDF5 library and is not a collective function.
*
* Parameters:
* hid_t tid
* ID of template to modify
* MPI_Comm comm
* MPI communicator to be used for file open as defined in
* MPI_FILE_OPEN of MPI-2. This function does not make a
* duplicated communicator. Any modification to comm after
* this function call returns may have undetermined effect
* to the access template. Users should call this function
* again to setup the template.
* MPI_Info info
* MPI info object to be used for file open as defined in
* MPI_FILE_OPEN of MPI-2. This function does not make a
* duplicated info. Any modification to info after
* this function call returns may have undetermined effect
* to the access template. Users should call this function
* again to setup the template.
* uintn access_mode
* File data access modes:
* H5ACC_INDEPENDENT
* Allow independent datasets access.
* H5ACC_COLLECTIVE
* Allow only collective datasets access.
*
* Return: Success: SUCCEED
*
* Failure: FAIL
@ -910,7 +939,7 @@ H5Cset_mpi (hid_t tid, MPI_Comm comm, MPI_Info info, uintn access_mode)
/* need to verify comm and info contain sensible information */
/* need to duplicate info too but don't know a quick way to do it now. */
#endif
if ((mrc = MPI_Comm_dup(comm, &lcomm) != MPI_SUCCESS))
if ((mrc = MPI_Comm_dup(comm, &lcomm)) != MPI_SUCCESS)
HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL,
"failure to duplicate communicator");
tmpl->comm = comm;