[MPICH] MPI message head definiation

[Ruini Xue]

Hello,

I want to pack additional information into the MPI message header (add a new
field in the header struct).
I went through the MPICH code roughly and found that there are different
header types for different communication styles. (e.g. for eager and for
rndv).

I have two question:
1. How many header types are there and which .h files are they in?
2. Is there any hook or callback for each MPI API? (I want to perform some
additional work before and after the MPI functions)

Best

Andrew
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/mpich-discuss/attachments/20071029/7923af95/attachment.htm>