Hi, I reviewed the draft and I propose only some small corrections to the draft https://svn.mpi-forum.org/trac/mpi-forum-web/attachment/ticket/229/mpi-repor... (*) Page 15 Line 1: This is done by having two bindings where one has to optional argument and one does not. This sentence is not really correct since at least functions MPI_Dist_graph_create_adjacent and MPI_Dist_graph_neighbors have 3 bindings since MPI_UNWEIGHTED can be used for 2 arguments. I would propose to simply remove the sentence. This is an implementation detail. (*) Page 546, Line 17 and Line 21: The font of _NOT_ in MPI_SUBARRAYS_NOT_SUPPORTED is too large. (*) Page 552, Line 23: Remove "The" after "the" in "In Example, 16.12, the The compiler" (*) Page 553, Line 17: applictions -> applications (*) Page 562, Line 9: gerneric -> generic (*) Page 545, Lines 36-40: MPI will work operate only on the elements s(1), s(6) s(11). Therefore, remove the "etc.," in Line 36 and ",..., s(96)" in Line 40. (*) Page 558, Line 34: autamatic -> automatic (*) Page 559, Line 7 Add a newline before subsubsection "Fortran Support Though the mpif.h Include File" (*) Page 564, Line 38: interfces -> interfaces In addition, I have 2 questions to (*) Section Fortran Support Through the mpi_f08 Module and Section Fortran Support Through the mpi Module "Provide Interfaces for all MPI routines, ..." Does all include the deprecated MPI routines ? When looking for aim "compile-time checking", they should be included. Since no Fortran 2008 interface is defined, it is not required that they are included. What is right ? (*) Section 16.2.15 "Fortran Support Through the mpi_f08 Module" What should item "Declare each argument with an INTENT=IN, OUT, or INOUT as appropriate" mean ? The MPI 3.0 draft defines all Intents. I would propose to remove this item entirely or to change it into "Declare each argument with an INTENT as defined in this standard" and remove the rational. The following 4 items are also defined by each individual MPI interface and could also be removed. Best regards Hubert