Re: [Myrinet] gm_alarm /send failure

I bet you do, although I can't swear to it in the sense that I can't 
recall if I ever verified it directly. Not getting some type of event 
would make for real problems.

On Wed, 25 Sep 2002, Gabor Forgacs wrote:

> I think when you use "gm_send_to_peer_with_callback" then you don't receive
> the GM_SENT_EVENT.
> I guess you use the gm_send. Do you call the gm_drop_sends/gm_resume in the
> case of a timeout ?
> 
> Thank you for your answer.
> ----- Original Message -----
> From: "Bill Allard" <[email protected]>
> To: <[email protected]>
> Cc: <[email protected]>; <[email protected]>
> Sent: Wednesday, September 25, 2002 4:21 PM
> Subject: Re: [Myrinet] gm_alarm /send failure
> 
> 
> > In my stuff whenever I do any communication I have a loop where I call
> > gm_receive, grab the event (interpreting GM_NO_RECV_EVENT as a null event)
> > until I'm happy with the result.  If I did a send I wait for
> > GM_SENT_EVENT, say.  One can obviously put timing in such a loop.  In fact
> > I keep track of the number of times I see GM_NO_RECV_EVENT.
> >
> > Hope that helps more than it hurts.
> >
> > On Wed, 25 Sep 2002, Gabor Forgacs wrote:
> >
> > > Hi All
> > >
> > > I would like to figure out some robust/fast error handling for send
> > > failures.
> > > All it should do to ignore the erronous sending and try to send the next
> > > buffer.
> > > The basic method i understand is to handle the errors in the send
> > callback
> > > and call the gm_drop_sends in the callback. It works fine but the send
> > > timeout is 30sec or like
> > > it is too long. I would like  only 1/2 sec delays. Can I somehow set
> > this
> > > value up?
> > >
> > > The other way i see is to setup an alarm and from the callback or in the
> > > event loop to call the
> > > gm_drop_sends. It just doesn't seem to work for me,the message i get:
> > >
> > > //////////////////////////////////////////////////
> > > [send] Opened board 0 port 2
> > > [send] 0-th Sending Buffer
> > > [send] Alarm Callback called
> > > [send] Alarm Event
> > > [send] Drop Callback called
> > > [send] 1-th Sending Buffer
> > > Program passed bad resend command to GM.
> > > Port 2 disabled.
> > > PANIC: libgm/gm_unknown.c:301:???():userland
> > >
> > > WARNING:
> > > Program aborted.
> > > //////////////////////////////////////////////
> >
> > --
> > William K. Allard
> > Professor of Mathematics
> > Duke University
> > Box 90320
> > Durham, NC 27708-0320
> > (919) 660-2861 Fax:(919) 660-2821
> >
> >
> 

-- 
William K. Allard
Professor of Mathematics
Duke University 
Box 90320
Durham, NC 27708-0320
(919) 660-2861 Fax:(919) 660-2821