[mpich-discuss] [MPICH users] Problems using MPICH instead of OpenMPI

lisa.fischer at zib.de lisa.fischer at zib.de
Sat Jan 28 04:37:55 CST 2017


Dear all,

I want to use MPICH instead of OpenMPI and have some difficulties.
Using OpenMPI worked fine.

I run my program on two different machines and set the MPICH_PORT_RANGE to
that of OpenMPI, but it seems like my program is running into a deadlock.
Sometimes I do not get any error message and sometimes I get the following:

Assertion failed in file src/mpid/ch3/src/ch3u_handle_connection.c at line
325: vc->state == MPIDI_VC_STATE_ACTIVE
internal ABORT - process 0

Do I need to change the port range of MPICH? Is there a function like
ompi_info to figure out the port range for MPICH as well?
Or do you think there is another problem? Do I need to set other
environment variables as well?

The ssh connection on both machines works. I also used a test program
using only send and receive calls which led to the same problem.

I would be very happy for any hints.

Thank you and have a good weekend!
Lisa

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