Re: [Beowulf] PVM on wireless...

2008-02-08 Thread Peter St. John
RGB, :-) no slight. In fact Euphistopheles, at LambdaMOO, called himself SourceError Supreme (after Dr Strange comic), for some incomprehensible reason. peter On Feb 8, 2008 3:17 PM, Robert G. Brown <[EMAIL PROTECTED]> wrote: > On Fri, 8 Feb 2008, Peter St. John wrote: > > > I'm thinking that if

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread Robert G. Brown
On Fri, 8 Feb 2008, Peter St. John wrote: I'm thinking that if I had RGB for QA I'd become a bartender :-) Bug reports bigger than the Legacy Code. If I had you for my bug-fixer, I'd probably be your best customer... at the bar. ;-) (Sorry, couldn't resist that one:-) rgb -- Robert G.

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread Robert G. Brown
On Fri, 8 Feb 2008, [EMAIL PROTECTED] wrote: I'm already getting lots of practice explaining how to get this stuff to work for 3 separate PVM users... :) Just record the results as you do so for reworking into the HOWTO...;-) > At some point at your convenience in the future when > you ha

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread Peter St. John
> > * Actually use the FSH so e.g. apropos pvm works. > > I'm assuming you don't mean FSH="Follicle Stimulating Hormone"; > did you mean "SSH", or am I clueless...? I think he meant File System Hierarchy, a little further down on that same list, http://en.wikipedia.org/wiki/FSH ? > > > > *

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread kohlja
On Fri, Feb 08, 2008 at 11:40:50AM -0500, Robert G. Brown wrote: > On Fri, 8 Feb 2008, [EMAIL PROTECTED] wrote: >> Awesome Strangelove Reference...! :-D >> >> "I Have A Plan...!" :-) >> >> Yep, I am now getting inundated with people having rsh/ssh problems >> with PVM, so a higher

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread Robert G. Brown
On Fri, 8 Feb 2008, [EMAIL PROTECTED] wrote: Awesome Strangelove Reference...! :-D "I Have A Plan...!" :-) Yep, I am now getting inundated with people having rsh/ssh problems with PVM, so a higher power clearly wants me to better document this. Thanks Much, Will Do... :) Excellentamundo!

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread kohlja
Awesome Strangelove Reference...! :-D "I Have A Plan...!" :-) Yep, I am now getting inundated with people having rsh/ssh problems with PVM, so a higher power clearly wants me to better document this. Thanks Much, Will Do... :) J

Re: [Beowulf] PVM on wireless...

2008-02-08 Thread Robert G. Brown
On Thu, 7 Feb 2008, [EMAIL PROTECTED] wrote: I admit this may be an antiquated cynical mentality, and I further concur that PVMNETSOCKPORT is an obvious omission in the basic documentation/faq... As they say, you can't RTFM if there ain't no FM... (or if the solution exists but isn't there).

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread kohlja
Hey RGB! Glad the env var worked for you, and sorry PVM is such a port hog. :-] It was all written long before firewalls were in such common usage (heck, it was built around .rhosts for authentication! :). Btw, if I'm not mistaken, I think the master pvmd connects _back_ to the slave pvmd, too,

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Robert G. Brown
On Thu, 7 Feb 2008, [EMAIL PROTECTED] wrote: > It would really, really help if man pvm (or man pvmd or man pvm_intro) > documented a suitable firewall setting that will let PVM function > without just turning off the firewall altogether. There is no pvm setup > in /etc/services, for example

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Bill Rankin
On Feb 7, 2008, at 1:41 PM, Robert G. Brown wrote: On Thu, 7 Feb 2008, Bill Rankin wrote: I think that I managed to replicate your problem, Rob. Laptop running CentoOS5, pvm 3.4.5-7(rpm), wireless ethernet. Server running FC6, pvm 3.4.5-7(rpm) Ssh working fine in both directions, PVM_ROOT a

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Gerry Creager
FWIW, we saw this with ROCKS and MPICH, a couple of years ago. Took a lot of firewall tweaking, and it's been too many beers to recall the details, to get things working. It is odd. gerry Robert G. Brown wrote: On Thu, 7 Feb 2008, Bill Rankin wrote: I think that I managed to replicate you

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread kohlja
Hi Robert/Rob/RGB! :-) On Thu, Feb 07, 2008 at 12:55:31PM -0500, Robert G. Brown wrote: > On Wed, 6 Feb 2008, [EMAIL PROTECTED] wrote: >> Hey Gang! >> Sounds like you're having some "fun" with PVM over wireless...? :-) >> (A buddy (Wael Elwasif) forwarded your discussion to me; >> pl

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Robert G. Brown
On Thu, 7 Feb 2008, Bill Rankin wrote: I think that I managed to replicate your problem, Rob. Laptop running CentoOS5, pvm 3.4.5-7(rpm), wireless ethernet. Server running FC6, pvm 3.4.5-7(rpm) Ssh working fine in both directions, PVM_ROOT and PVM_RSH set accordingly. Try it with the firewall

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Bill Rankin
I think that I managed to replicate your problem, Rob. Laptop running CentoOS5, pvm 3.4.5-7(rpm), wireless ethernet. Server running FC6, pvm 3.4.5-7(rpm) Ssh working fine in both directions, PVM_ROOT and PVM_RSH set accordingly. Running "pvm" from the shell on the server and doing an "add

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Robert G. Brown
On Wed, 6 Feb 2008, [EMAIL PROTECTED] wrote: Hey Gang! Sounds like you're having some "fun" with PVM over wireless...? :-) (A buddy (Wael Elwasif) forwarded your discussion to me; please always feel free to copy "[EMAIL PROTECTED]" with PVM inquiries when you get stuck. I try to be pretty re

Re: [Beowulf] PVM on wireless...

2008-02-07 Thread Robert G. Brown
On Wed, 6 Feb 2008, Jim Lux wrote: Ahh.. but there is a "routing" process of sorts inside your AP. It has to bridge from the 802.3 wired world to the 802.11 wireless world, and that usually involves some store and forward type processing. Some of these are implemented as a store and forward

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread kohlja
uck & "Long Live PVM"...! :) Jem ;) (a.k.a. Jim Kohl, [EMAIL PROTECTED] :) > From: "Robert G. Brown" <[EMAIL PROTECTED]> > Date: Wed, 6 Feb 2008 13:21:55 -0500 (EST) > Subject: Re: [B

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Jim Lux
At 01:28 PM 2/6/2008, Robert G. Brown wrote: On Wed, 6 Feb 2008, Reuti wrote: Just an idea to check: PVM can also be started without rsh/ssh between the machines. You have to copy and paste some things from here to there and back and can startup all daemons this way by hand (page 30 in the PV

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Robert G. Brown
On Wed, 6 Feb 2008, Jim Lux wrote: You brave man.. trying to do what is trivial in a wired network with wireless stuff. I would look for timing assumptions that aren't met in the wireless environment. There's a channel capacity issue, of course, but there's also some constraints on round tri

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Robert G. Brown
On Wed, 6 Feb 2008, Reuti wrote: Just an idea to check: PVM can also be started without rsh/ssh between the machines. You have to copy and paste some things from here to there and back and can startup all daemons this way by hand (page 30 in the PVM book). Maybe this works - just to narrow the

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Reuti
Am 06.02.2008 um 19:21 schrieb Robert G. Brown: On Wed, 6 Feb 2008, Bill Rankin wrote: Hey Rob, Could it be a node naming issue where the wireless IP does not resolve to the same address as that used in the machinefile? I seem to recall a similar issue back when we PVM on machines with

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Jim Lux
At 07:40 AM 2/6/2008, Robert G. Brown wrote: Anybody on list have any idea why PVM fails to add hosts over a wireless link? I've now tried this over multiple distro version and at least one PVM update, and it just doesn't work. Works fine over a wire, fails on wireless, and as far as I know wir

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Lombard, David N
On Wed, Feb 06, 2008 at 10:40:30AM -0500, Robert G. Brown wrote: > Anybody on list have any idea why PVM fails to add hosts over a wireless > link? I've now tried this over multiple distro version and at least one > PVM update, and it just doesn't work. Works fine over a wire, fails on > wireless

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Robert G. Brown
On Wed, 6 Feb 2008, Bill Rankin wrote: Hey Rob, Could it be a node naming issue where the wireless IP does not resolve to the same address as that used in the machinefile? I seem to recall a similar issue back when we PVM on machines with multiple network connections. pvmd is actually star

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Reuti
Hi, Am 06.02.2008 um 16:40 schrieb Robert G. Brown: Anybody on list have any idea why PVM fails to add hosts over a wireless link? I've now tried this over multiple distro version and at least one PVM update, and it just doesn't work. Works fine over a wire, fails on wireless, and as fa

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Bill Rankin
Hey Rob, Could it be a node naming issue where the wireless IP does not resolve to the same address as that used in the machinefile? I seem to recall a similar issue back when we PVM on machines with multiple network connections. Just a thought, -bill On Feb 6, 2008, at 10:40 AM, Robe

Re: [Beowulf] PVM on wireless...

2008-02-06 Thread Peter St. John
RGB, Are you using 3.4.5 re "improved use on Beowulf..."? I was thinking along the lines of the script invoking PVM doing something to reboot or refresh the network, and saw "New features in PVM 3.4.x include communication contexts...". I'd be happy to read a perl or Cish thing if an extra pair of

[Beowulf] PVM on wireless...

2008-02-06 Thread Robert G. Brown
Anybody on list have any idea why PVM fails to add hosts over a wireless link? I've now tried this over multiple distro version and at least one PVM update, and it just doesn't work. Works fine over a wire, fails on wireless, and as far as I know wire and wireless are both "identical" at the ker