Hi, can someone help Steve with this problem? Steve, I am forwarding this to mpich-discuss, which is our problem-reporting list. It will probably go first to the excellent Ken Raffenetti, who I predict will be able to help. Rusty Begin forwarded message:

From: "Steven C. Pieper" <[email protected]> Subject: Help for installing mpich Date: May 5, 2014 at 4:25:13 PM CDT To: Ralph Butler <[email protected]>, Rusty Lusk <[email protected]> Reply-To: <[email protected]>

I'm trying to build mpich on the theory linux cluster which is scientific Linux 6.2 which is basically Redhat Enterprise 6

I got mpich-3.1 from the download site, did the configure, make, and install (into ~/mpich-install) . This all seemed OK. I made a machine file:

theoryl14.phy.anl.gov:2 # 2 processes on l14 theoryl18.phy.anl.gov:3 # 3 processes on l18

If I am on theoryl14, I can run the hostname test on just l14:

[theoryl14 mpich-test] mpiexec -f machfile_l14 -n 2 hostname theoryl14.phy.anl.gov theoryl14.phy.anl.gov

Similarly, if I put the l18 line first, I can run 3 processes on l18 from l18.

However I can't run from l14 to l18 or vice versa: Here I start on l14 and specify 3 processes so it has to do one on l18:

[theoryl14 mpich-test] mpiexec -f machfile_l14 -n 3 hostname theoryl14.phy.anl.gov theoryl14.phy.anl.gov [proxy:0:[email protected]] HYDU_sock_connect (/home/pieper/mpich-3.1/src/pm/hydra/utils/sock/sock.c:172): unable to connect from "theoryl18.phy.anl.gov" to "theoryl14.phy.anl.gov" (No route to host) [proxy:0:[email protected]] main (/home/pieper/mpich-3.1/src/pm/hydra/pm/pmiserv/pmip.c:189): unable to connect to server theoryl14.phy.anl.gov at port 48451 (check for firewalls!) ---I hit return here [[email protected]] HYDU_sock_write (/home/pieper/mpich-3.1/src/pm/hydra/utils/sock/sock.c:286): write error (Bad file descriptor) [[email protected]] HYDU_sock_write (/home/pieper/mpich-3.1/src/pm/hydra/utils/sock/sock.c:286): write error (Bad file descriptor) ---I use ctrl-c.

I can ssh without passwords:

[theoryl14 mpich-test] ssh theoryl18.phy.anl.gov hostname theoryl18.phy.anl.gov [theoryl14 mpich-test]

This ssh went through a tunnel that was already established.

So I'm confused. Can one of you help?

BTW: Scientific Linux will allow me to download openmpi but not mpich. I guess I'd like to try to use mpich.

Thanks, Steve

-- Steven C. Pieper: [email protected] Argonne National Laboratory, Physics Division, Bldg. 203, Argonne, IL 60439 Phone: 630-252-4232 Fax -6008 Secretary, Debra Morrison, -4100