[Tinyos-help] Question

[Munaretto, Daniel]

I changed the makefile with that line, but results remain the same. I notice in the simulator some lost packets ,when nodes are transmitting close to each other. i tried to avoid this by using random timers before sending, but sometimes there are still lost packets. Now i think the reason is not the queue size, but collisions in general..hidden terminal problem and so on..
any suggestions? they will be really appreciated
cheers
Daniele

	-----Original Message----- 
	From: Claro Noda [mailto:claro.noda at gmail.com] 
	Sent: Tue 8/1/2006 9:44 AM 
	To: Munaretto, Daniel 
	Cc: 
	Subject: Re: [Tinyos-help] Question
	
	
	you should, indeed, edit the makefile in your app folder.
	C.
	
	 
	On 01/08/06, Munaretto, Daniel <munaretto at docomolab-euro.com> wrote: 

		I haven't this line in MakeXbowlocal under /contrib/xbow/apps nor in Makefile under my application folder... 
		Do i have to add your line in which of these?
		
		       -----Original Message-----
		       From: Claro Noda [mailto:claro.noda at gmail.com]
		       Sent: Tue 8/1/2006 9:11 AM 
		       To: tinyos-help at Millennium.Berkeley.EDU
		       Cc:
		       Subject: Re: [Tinyos-help] Question
		
		
		       Daniele:
		
		       you'd try including the CFLAGS += -DTOSH_MAX_TASKS_LOG2=8 line in the App Makefile, 
		
		       to increase the size of the task queue to 256.
		
		       regards,
		       Claro.
		
		
		       On 01/08/06, Munaretto, Daniel <munaretto at docomolab-euro.com > wrote:
		
		               Hi,
		               How is it possible to increase the task queue on TinyOS1.x (micaz motes)?
		               which files and where do i have to modify?
		               thanks for your availability 
		               cheers
		               Daniele
		
		                      -----Original Message-----
		                      From: Aaron Ault [mailto:ault at purdue.edu]
		                      Sent: Mon 7/31/2006 9:00 PM 
		                      To: svilen at seas.upenn.edu
		                      Cc: tinyos-help at Millennium.Berkeley.EDU
		                      Subject: Re: [Tinyos-help] Question 
		
		
		
		                      I've had problems like that when the task queue overflows.  The default
		                      size is 8, you might want to increase it to 32 or so.
		
		                      Aaron 
		
		                      On Mon, 2006-07-31 at 13:38 -0400, svilen at seas.upenn.edu wrote:
		                      >
		                      > Hello,
		                      > 
		                      > I have a question regarding a message transmission problem that I encounter. I
		                      > run a TinyOS application with 200 nodes, with the following configuration file:
		                      >
		                      > configuration test_filter {
		                      > }
		                      > implementation {
		                      >   components Main, test_filterM, SingleTimer, LedsC, PotC, GenericComm as Comm, 
		                      > RandomLFSR;
		                      >
		                      >   Main.StdControl -> SingleTimer.StdControl;
		                      >   Main.StdControl -> test_filterM.StdControl; 
		                      >
		                      >   test_filterM.Timer -> SingleTimer.Timer;
		                      >   test_filterM.Leds -> LedsC;
		                      >   test_filterM.CommControl -> Comm; 
		                      >   test_filterM.SendMsg -> Comm.SendMsg[1];
		                      >   test_filterM.ReceiveMsg -> Comm.ReceiveMsg[1];
		                      >   test_filterM.Random -> RandomLFSR; 
		                      > }
		                      >
		                      > A am building a routing tree over those nodes, using a sparse bit error graph
		                      > (about 10 neighbors have 0 bit-errors, and the rest have 0.5) and the problem is
		                      > that after multiple message broadcasts, well into the process, I encounter a
		                      > case where a node repeatedly transmits a message (using call SendMsg.send) and
		                      > its intended recipient does not register it (using event ReceiveMsg.receive).
		                      > There are no other nodes that transmit at this time, just node A which tries to 
		                      > send a message to node B, which is targeted specifically to B (not a broadcast).
		                      > The bit error between them is 0, and yet node B does not register the message. B 
		                      > has previously received messages from A before the current attempt on A's
		                      > behalf. Source code and status logs can be provided on request.
		                      > 
		                      > Why does this situation arise? Is it possible that there is some kind of
		                      > overflow of internal message queues? Is it because of the methods use to send
		                      > and receive? Can you suggest an alternative? 
		                      >
		                      > Svilen Mihaylov
		                      >
		                      >
		                      >
		                      > ----- End forwarded message ----- 
		                      >
		                      >
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