Hi Brent,

Unfortunately, unless you can provide us with a reproducer, there is little we can do to find the issue.

-- 
Hui Zhou

From: Brent Morgan via devel <devel@mpich.org>
Date: Wednesday, January 13, 2021 at 3:20 AM
To: devel@mpich.org <devel@mpich.org>
Cc: Brent Morgan <brent.taylormorgan@gmail.com>, Robert Katona <robert.katona@hotmail.com>
Subject: [mpich-devel] mpich3 error

Hello mpich dev support,

I am receiving the following error in my MPI implementation, when I use 110+ threads.

Assertion failed in file src/mpid/ch3/channels/nemesis/src/ch3_progress.c at line 567: !vc_ch->recv_active
0x7f7f870937 ???
???:0
0x7f7f870957 ???
???:0
0x7f7f8089cf ???
???:0
0x7f7f854983 ???
???:0
0x7f7f75a4f3 ???
???:0
0x7f7f7cd8bf ???
???:0
0x7f7f7cde0f ???
???:0
0x7f7f78d577 ???
???:0
0x7f7f6ea6cb ???
???:0
0x7f7f6ea8f3 ???
???:0
0x7f7f78c7ff ???
???:0
0x7f7f6e9e6f ???
???:0
0x7f7f6e9eb7 ???
???:0
0x7f7f6ea033 ???
???:0
0x55793fe47b ???
???:0
0x55793f96b3 ???
???:0
0x7f7f29908f ???
???:0
0x55793f9a9b ???
???:0
internal ABORT - process 171

Does this give a clue as to what I may be doing wrong?  Thank you,

Best,

Brent