Re: [4] Error: Unable to open a GM port !

Patrick Geoffray <[email protected]> 09 Nov 2003 13:42:36 -0500
Newsgroups gmane.network.myrinet.general
Message-ID <1068403358.7294.5.camel@asterix>
Hi Camilo,

On Sun, 2003-11-09 at 12:54, Camilo Ruiz Méndez wrote:
> Seems that one port is busy, but i don't know to fix it. The same thing 

With GM, port 0 is always busy, it's a fake port, port 1 is used by the
mapper and port 3 is used by the Ethernet emulation (myri0 device).

I don't see anything wrong in your gm_board_info output, but the problem
does not seem to be on neperiano.usal.es, it looks from the mpirun.ch_gm
verbose output that it's the MPI process 4, spawned on cat02.usal.es
that fails to open a GM port.

Can you look at the gm_board_info output on cat02.usal.es ? I guess
there are some ancient processes running there and still holding their
GM port. The MPI process 5 spawned on the same machine got the GM port
#7, which is the last one, that means all of the previous ones (2, 4, 5
and 6) were busy.

Patrick
-- 

Patrick Geoffray
Myricom, Inc.
http://www.myri.com