hi we switched off the pfilter service(pfilter stop) and have rectified the error. hope this is the correct way to do. thanks for the support.
regards ullas ----- Original Message ----- From: "Michael Edwards" <[EMAIL PROTECTED]> To: "ullas ckm" <[EMAIL PROTECTED]> Subject: Re: [Oscar-users] client-server programming not possible with head node?why Date: Mon, 2 May 2005 08:41:36 -0500 > > You might check for problems with your network drivers (or just for > updates), especially if the head node has a different card than the > others. I think the problem with the shipped 3c2000t driver I used to > use was related to UDP transfers. > > The pfilter thing is easy to check, just remove the package with the > oscar wizard and check your program again. Then if it still doesn't > work you can put it back again if you want. > > Also, you might just try running "Complete Cluster Setup" again (which > resets a bunch of configuration files), or rebooting the cluster > (headnode first, then nodes). Every once and a while I have gotten > things into odd states and those two things are quick and easy things > to try. > > As far as running other UDP programs, I believe LAM/MPI uses UDP for > some of its inter-daemon communications so you might try running some > benchmarks or somesuch using LAM and see if they work. I am not super > sure about this though. > > On 5/2/05, ullas ckm <[EMAIL PROTECTED]> wrote: > > hi, > > > > thx for the reply. > > > > But if we run client program on the head node and send the > > packet(to server) then smooth communication is possible. > > that time its not dropping any packets.only in the first > > instance(i,e server waiting for some request) its giving problem. > > > > cheers > > ullas > > ----- Original Message ----- > > From: "Bernard Li" <[EMAIL PROTECTED]> > > To: "ullas ckm" <[EMAIL PROTECTED]>, [email protected] > > Subject: RE: [Oscar-users] client-server programming not possible > > with head node?why > > Date: Sun, 1 May 2005 23:57:01 -0700 > > > > > > > > Hi Ullas: > > > > > > Do you have pfilter installed? If so then it is probably dropping > > > the packets. For more information about pfilter, check: > > > > > > man pfilter > > > > > > Cheers, > > > > > > Bernard > > > > > > ________________________________ > > > > > > From: [EMAIL PROTECTED] on behalf of ullas ckm > > > Sent: Sun 01/05/2005 11:52 PM > > > To: [email protected] > > > Subject: [Oscar-users] client-server programming not possible with > > > head node?why > > > > > > > > > > > > Hi, > > > > > > we have the cluster setup(OSCAR4.0 on RH9.0).now we are trying out > > > some high performance application(large file transfer). > > > > > > For that we were trying out some UDP communication between head > > > node and some external system. > > > server program: on head node > > > client:external system > > > > > > But our server program(running on head node) wont recieve > > > packets(first packet) directed to it. > > > > > > somebody please try some client-server program,running server > > > program on head node and pls let us know whether the problem > > > persists. > > > > > > Thanks, > > > Ullas > > > -- > > > _______________________________________________ > > > Check out the latest SMS services @ http://www.linuxmail.org > > > This allows you to send and receive SMS through your mailbox. > > > > > > Powered by Outblaze > > > > > > > > > ------------------------------------------------------- > > > This SF.Net email is sponsored by: NEC IT Guy Games. > > > Get your fingers limbered up and give it your best shot. 4 great events, 4 > > > opportunities to win big! Highest score wins.NEC IT Guy Games. Play to > > > win an NEC 61 plasma display. Visit http://www.necitguy.com/?r > > > _______________________________________________ > > > Oscar-users mailing list > > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > > > -- > > _______________________________________________ > > Check out the latest SMS services @ http://www.linuxmail.org > > This allows you to send and receive SMS through your mailbox. > > > > Powered by Outblaze > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by: NEC IT Guy Games. > > Get your fingers limbered up and give it your best shot. 4 great events, 4 > > opportunities to win big! Highest score wins.NEC IT Guy Games. Play to > > win an NEC 61 plasma display. Visit http://www.necitguy.com/?r > > _______________________________________________ > > Oscar-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > -- _______________________________________________ Check out the latest SMS services @ http://www.linuxmail.org This allows you to send and receive SMS through your mailbox. Powered by Outblaze ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r _______________________________________________ Oscar-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/oscar-users
