[mpich-discuss] Help for installing mpich

[Kenneth Raffenetti]

Steve,

It looks like the iptables firewall may be active and preventing MPICH 
from communicating between nodes. You should be able to confirm this by 
temporarily disabling the firewalls (sudo /etc/init.d/iptables stop) on 
the involved nodes.

If that's indeed the case, you may want to permanently disable the 
firewalls or configure them to allow a specific port range for MPICH. 
The wiki has info on how to tell MPICH which port range to use.

http://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_How_do_I_control_which_ports_MPICH_uses.3F

Ken

On 05/05/2014 04:39 PM, Rusty Lusk wrote:
>
>
> 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" <spieper at anl.gov <mailto:spieper at anl.gov>>
>> *Subject: **Help for installing mpich*
>> *Date: *May 5, 2014 at 4:25:13 PM CDT
>> *To: *Ralph Butler <rbutler at mtsu.edu <mailto:rbutler at mtsu.edu>>, Rusty
>> Lusk <lusk at mcs.anl.gov <mailto:lusk at mcs.anl.gov>>
>> *Reply-To: *<spieper at anl.gov <mailto:spieper at anl.gov>>
>>
>> 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 <http://theoryl14.phy.anl.gov>:2   # 2 processes
>> on l14
>> theoryl18.phy.anl.gov <http://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 <http://theoryl14.phy.anl.gov>
>> theoryl14.phy.anl.gov <http://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 <http://theoryl14.phy.anl.gov>
>> theoryl14.phy.anl.gov <http://theoryl14.phy.anl.gov>
>> [proxy:0:1 at theoryl18.phy.anl.gov] HYDU_sock_connect
>> (/home/pieper/mpich-3.1/src/pm/hydra/utils/sock/sock.c:172): unable to
>> connect from "theoryl18.phy.anl.gov <http://theoryl18.phy.anl.gov>" to
>> "theoryl14.phy.anl.gov <http://theoryl14.phy.anl.gov>" (No route to host)
>> [proxy:0:1 at theoryl18.phy.anl.gov] main
>> (/home/pieper/mpich-3.1/src/pm/hydra/pm/pmiserv/pmip.c:189): unable to
>> connect to server theoryl14.phy.anl.gov
>> <http://theoryl14.phy.anl.gov> at port 48451 (check for firewalls!)
>> ---I hit return here
>> [mpiexec at theoryl14.phy.anl.gov] HYDU_sock_write
>> (/home/pieper/mpich-3.1/src/pm/hydra/utils/sock/sock.c:286): write
>> error (Bad file descriptor)
>> [mpiexec at theoryl14.phy.anl.gov] 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
>> <http://theoryl18.phy.anl.gov> hostname
>> theoryl18.phy.anl.gov <http://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:spieper at anl.gov
>> Argonne National Laboratory, Physics Division, Bldg. 203, Argonne, IL 60439
>> Phone:  630-252-4232         Fax -6008
>> Secretary, Debra Morrison, -4100
>
>
>
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