Re: [Myrinet] gm_alarm /send failure

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
>
>