Hi all, Here are the comments from the MPI_T_Events reading. Martin Connected MPI processes -> line 43, page 622, get_info call -> need to tweak to include processes before init/after finalize same for line 26/27, page 623 -> requirement to return the same values line 8, page 626: add “during callback registration” Line 33, Page 626: rewrite “free-callback” Line 23, page 627: dropped handler >>callback<< function Line 30 (or so), page 627: need weasel language in case HW cannot even count dropped events -> best effort Line 43/44, page 627: wrong sentence, which allocation? Need to clarify Line 4, page 629: rewrite the sentence with “passes a pointer” Line 11, Page 629: space before “(pointer)” missing Line 16/17, Page 629: extent no longer returned Comment: why MPI_Count -> add what the value and behavior of a timestamp is -> or add forward timestamp at the bottom of page 629 Line 42, page 630, font for MPI not correct Line 44, page 630: MPI_T_SOURCE_GET_NUM -> need to pull description after the prototypes Line 7, Page 631, keep “num_sources” on one line Line 27, Page 631, add “source” / name of argument Line 39/40, line 17 and 20: page 631, missing type of argument in the prototype description Discussion on timestamps integer can roll-over if we don’t have enough bits 64 should be enough, but 32 bit can roll over add advice to users that problems can happen on true 32 bit platforms should specify what zero is, doesn’t have to be Linux zero time should we fix this to a particular time, so we have a fixed point for comparison but then the discussion turned away from that due to HW constraints still need to add definition of timestamps perhaps enough to say that things are comparable within a source Jeff added two small comments on GitHub -> need to look for that Comment om MPI_T_EVENT_GET_INFO (page 622, 37/38) who is allocating the info object and should we pass Info or a pointer if ignores, should we pass NULL or INFO_NULL should probably be NULL — Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Center (LRZ) Email: [email protected]