This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "MPICH primary repository". The branch, master has been updated via 2bdb181f2ff8607c3cfa6f7d306e94f604dc94ba (commit) from d8eec5491fa0929d43da3086230795a2fb1c6545 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.mpich.org/mpich.git/commitdiff/2bdb181f2ff8607c3cfa6f7d306e94f604... commit 2bdb181f2ff8607c3cfa6f7d306e94f604dc94ba Author: Dave Goodell <[email protected]> Date: Tue Feb 5 10:53:55 2013 -0600 explain external32 limitations in RELEASE_NOTES references ticket #1754. No reviewer. diff --git a/RELEASE_NOTES b/RELEASE_NOTES index 4d44831..49f2e7e 100644 --- a/RELEASE_NOTES +++ b/RELEASE_NOTES @@ -36,7 +36,14 @@ * Support for "external32" data representation is incomplete. This affects the MPI_Pack_external and MPI_Unpack_external routines, as - well the external data representation capabilities of ROMIO. + well the external data representation capabilities of ROMIO. In + particular: noncontiguous user buffers could consume egregious + amounts of memory in the MPI library and any types which vary in + width between the native representation and the external32 + representation will likely cause corruption. The following ticket + contains some additional information: + + http://trac.mpich.org/projects/mpich/ticket/1754 * ch3 has known problems in some cases when threading and dynamic processes are used together on communicators of size greater than ----------------------------------------------------------------------- Summary of changes: RELEASE_NOTES | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) hooks/post-receive -- MPICH primary repository