This is a proposal for MPI 2.1, Ballot 4. I'm asking especially the implementors to check, whether this interpretation is implemented in their MPI implementations, or does not contradict to the existing implementation. This is a follow up to: MPI_File_set_info in http://www.cs.uiuc.edu/homes/wgropp/projects/parallel/MPI/mpi-errata/index.h... with mail discussion not yet existing ___________________________________ Proposal: Add in MPI-2.0 Sect. 9.2.8, File Info, page 218, after line 18 the following sentences: With MPI_FILE_SET_VIEW and MPI_FILE_SET_INFO the current setting of all hints used by the system to this open file is updated by the (key,value) pairs in the info argument. ___________________________________ Rationale for this clarification: This text was missing. It was not clear, whether a info handles in MPI_FILE_SET_VIEW and MPI_FILE_SET_INFO are updating or replacing the current set of used hints. The developers from ROMIO decided to update the current set of used hints. Therefore, this behavior should be the expected behavior of a majority of users. ___________________________________ Best regards Rolf Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner_at_[hidden] High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530 University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832 Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner Nobelstr. 19, D-70550 Stuttgart, Germany . (Office: Allmandring 30)