MPICH-GM 1.2.5..11 is now available

Dear Myrinet users,

We are pleased to announce the release of MPICH-GM 1.2.5..11.

    http://www.myri.com/scs/

The new features and important bug fixes for this release of MPICH-GM
include:

* Shared lib now also works on non-ia32 archs

* In order to avoid some compiler bugs, we now always require gcc to
  compile the glibc malloc in mpich-gm (ptmalloc2), even if the rest is 
  compiled with another compiler.

* Can be compiled in a separate "build" directory

* No longer require linking with pthread on Linux

* Add a configure option (-with-shmemdir) to specify the path to the file 
  mmaped in user-space to provide the shared memory device. 
  Useful for diskless system where /tmp is not on a local disk but NFS 
  mounted (Contributed by Glen Beane at University of Maine).

* Work around a bug in GM about send error recovery, affecting configurations 
  with at least 2 processes per NIC. Under some circumstances, the application 
  would just hang when a message would timeout.

* Work around the change of semantics in GM-2 about node ids, without using 
  any new GM-2 functions. The MPICH-GM binaries are now compatible with GM-1 
  and GM-2, depending upon with which shared library they are dynamically linked.

* MPICH version 1.2.5.2.

A detailed list of changes in this release can be found in the
mpich-1.2.5..11/mpid/ch_gm/CHANGES file.
 
MPICH-GM has been tested on Linux (Gnu compilers, PGI 5 compilers, and 
Intel 8.0 compilers), Solaris, FreeBSD, and Mac OS X. No testing has been
performed on Tru64 or AIX.

This release of MPICH-GM is not yet supported for Windows. 

If you have any questions about this release, or other Myrinet technical
questions, please don't hesitate to contact us at [email protected].

Ruth and Susan  ([email protected])
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Susan Blackford
Member of Technical Staff
Myricom Inc.
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