Hi Chao-Chin,

The code has been removed in commit 61c2f6f6ba90ca0c9a988fedf714f2f606674121
Author: Wesley Bland <wesley.bland@intel.com>
Date:   Wed Nov 15 10:00:22 2017 -0600

    ch3: Remove unneeded internal barrier functions

    Signed-off-by: Pavan Balaji <balaji@anl.gov>

Could you please try the latest MPICH 3.3b3 tarball or clone the MPICH master branch at https://github.com/pmodels/mpich ?

If you still see any failure, please send us the config.log file at your MPICH build directory, and a simple reproducer program.

Thanks,
Min

On 2018/10/06 22:59, Chao-Chin Yang wrote:

Hi,

I am using

mpicxx for MPICH version 3.2.1
Apple LLVM version 10.0.0 (clang-1000.11.45.2)
Target: x86_64-apple-darwin17.7.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

But I run into a runtime error:

Assertion failed in file src/mpid/ch3/channels/nemesis/src/ch3i_comm.c at line 139: 0
internal ABORT - process 0
Assertion failed in file src/mpid/ch3/channels/nemesis/src/ch3i_comm.c at line 139: 0
internal ABORT - process 1

I looked into the source code ch3i_comm.c and found that there is a FIXME comment but I am not quite sure I get the picture. So my question is:

In what condition(s) does one get this assertion error?

Sincerely,

Chao-Chin Yang

Postdoctoral Scholar

Department of Physics and Astronomy

University of Nevada, Las Vegas, U.S.A.
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