Re: Re past 2.0 with terracotta?

Seems like it can't find something called: terracottaGrid, but I believe the name should be: "Terracotta Grid"

Have you tried making that adjustment?

Mark
On Jan 11, 2011, at 5:15 PM, charlie1kimo wrote:


Thank you for your reply, but I couldn't get repast with terracotta to work
in eclipse, as I stated in my previous posts. The problem was the log4j path
issue. When I used eclipse to run terracotta demo, repast runtime library is
using "repast.simphony.bin_and_src," which had log4j error. However, when I
modified the runtime library path using "repast.simphony.runtime" and run it
in the terminal. It can launch repast window just fine. Therefore the
debugging tools in eclipse is NOT useful to me... ...

So I turned to command line tool -- jdb.
I was able to set the break points based on what I read in the source codes
(which are from repast.simphony.bin_and_src"). Since the console output
stopped at "starting workers...," I was curious if some communication
process in terracotta got hung. Thus, I set the break point in all the
StartWorker method. However when I stepped through them, they seemed to pass
just fine without any repetitive commands. (I checked the classes and lines
each time when I stepped, so if there is a infinite loop I'll see...) The
step result terminated at some gui method call and it seemed to initialize
just fine, except missing a display for this terracotta demo.

Now I started to suspect this problem is the DISPLAY issue, since I can
press "step" and "run" in the repast window after initialized. Are you guys
sure the display will be automatically initialized by this demo??? I was
curious because I didn't see any Displays in "scenario tree" even after
initialized. I remembered in some demo I tried I had to manually create
display...

So I tried to create one through Repast window, and it failed to create the
display due to:
...
Caused by: java.lang.RuntimeException: Projection 'terracottaGrid' not
found.
   at
repast.simphony.visualization.engine.AbstractDisplayCreator.createLayout(AbstractDisplayCreator.java:51)
   at
repast.simphony.visualization.engine.DisplayCreatorOGL2D.createDisplay(DisplayCreatorOGL2D.java:62)
...38 more
...

I'll attach the full error log of creating display here:
http://old.nabble.com/file/p30648864/errorDisplay.log errorDisplay.log

Any helps on this? I really REALLY would like to get this feature to work,
and I think I am almost there.
Thanks for all your helps so far!!!

-Charlie-


North, Michael wrote:

Thank you for using Repast! All of the Repast source code is accessible
through the repast.simphony.bin_and_src.jar in the
plugins/repast.simphony.bin_and_src_2.0.0 directory. By default the source
code in the JAR file is linked in so the Eclipse debugger can trace
through it.

Repast does quite a bit of work for you on startup. As such, I would start
to debug your model by putting a breakpoint in your own code near the area
of interest rather than in the Repast code itself. A short guide on using
the Eclipse debugger can be found here:

   http://www.ibm.com/developerworks/library/os-ecbug/

Mike

On 1/7/11 5:44 PM, "charlie1kimo" <ChenYiChen@...<mailto:ChenYiChen@...>> wrote:


Unfortunately, I can't find a way to let the code goes steps by steps in
eclipse debugger, since I think the debugger required the source codes,
and
I think repast.runtime.Main only has "class."...
or it could also be I am not familiar with eclipse debugger, any solutions
of how to debug this are welcome.

However, I did a java stack trace using jstack tool. Here are the threads
dumped before Repast simulation initialization (which is just openning
repast windows and waiting user to do things), and after I initialized the
Repast simulation.
I called the logs before and after in the file name, and I'll attached it
here.
I figured 4 threads were generated after I pressed the "initialize"
button,
by simply doing a diff on the thread dumps. They are threads 16 ~ 19.
I don't quite understand what those packages ( such as
bytecode.ManageImpl,
concurrent.LinkedBlockingQueue ) for in the process of parallelization.
But
it seems like I have a possible deadlock in creating sharing objects???
The weird thing is when I used jconsole to debug these threads, it didn't
think there are deadlock anywhere...so I really don't know what's going on
here...

Here are the full thread dump logs:
http://old.nabble.com/file/p30619197/jstack_before.log jstack_before.log
http://old.nabble.com/file/p30619197/jstack_after.log jstack_after.log

Does anyone has any ideas of what's going on? Any help would be highly
appreciated. Thanks!!!

-Charlie-




Altaweel, Mark R. wrote:

Do you know at what point the run gets hung? Is there a way to debug and
see where the code hangs?

There should be a 2D display that comes up in the demo. It should show
agents moving around randomly more or less.

Mark
On Jan 5, 2011, at 7:05 PM, charlie1kimo wrote:


Hi Mark,
First thanks for the quick reply.
I went through the stream of message in Feb 2009, and apparently the
problem
was not solved...
I still have trouble running repast with terracotta in eclipse because
of
the strange path look up issues (like repast was run in
repast.simphony.bin_and_src.jar when run with terracotta DSO, and was
run
in
repast.simphony.runtime.bin when run without terracotta), but at least
gave
me some ideas and directions to try for.

So I actually combine my run parameters from with and without
terracotta,
and run it from the command line. Now terracotta client starts okay, it
connected to the sever, I can see the connection through terracotta
develop
console...etc. But when I make both master and worker to be localhost,
and
initialize the model, it's having the same problem as running without
terracotta. It's the problem with stuck at the "starting workers" step.
Here is the console output:

2011-01-05 16:58:29,409 INFO - Terracotta 3.4.0, as of 20101104-141154
(Revision 16614 by cruise@su10mo4 from 3.4)
2011-01-05 16:58:29,804 INFO - Successfully loaded base configuration
from
file at

'/data2/home/charlie/workspace/test_repast_terracotta_demo/testrepastter
racottademo.rs/tc-config.xml'.
2011-01-05 16:58:29,995 INFO - Log file:
'/data2/home/charlie/terracotta/client-logs/terracotta-client.log'.
2011-01-05 16:58:31,322 INFO - Connection successfully established to
server
at 127.0.0.1:9510
Starting...:
list with routing IDs         = [ localhost ]
routing ID for fail-over node = localhost
-- starting workers...

There's something happened in client-log that lead to a
CommonShutDownHook,
which closed the local worker node I believed, but I am not sure what's
the
reason.

I attached the server log and client log here for the reference
http://old.nabble.com/file/p30601758/terracotta-client.log
terracotta-client.log
http://old.nabble.com/file/p30601758/terracotta-server.log
terracotta-server.log

Lastly, is this demo suppose to create display on its own? I tried to
create
a 2D display myself but it would crash the repast window...

Thanks for the help!

-Charlie-


Altaweel, Mark R. wrote:

There is a similar problem by another user back from February 2009.

I listed the link to the stream of messages below:


http://sourceforge.net/mailarchive/forum.php?thread_name=5FDF261785B44C
4DB302979A658D006102AE3BA8%40spike.dis.anl.gov&forum_name=repast-intere
st


On Jan 4, 2011, at 8:40 PM, charlie1kimo wrote:


hmm...
I believed it wouldn't be a firewall issue here.
I could NOT run the demo with terracotta DSO because it was giving me
the
log4j error.
The repast windows wouldn't start, and the console just showed log4j
was
not
found and needed to be initialized.

So I tried running the demo LOCALLY, which is just run the demo as a
standard java/repast application.
I put both my master and worker as "localhost," so it wouldn't have
the
firewall problem.
Somehow, running locally on localhost made "starting workers" hang.

I've also tried the terracotta's HelloClusteredWorld sample on our
machine,
and I can start the clients within eclipse and connect to the
localhost
server, which means terracotta is working...

I guess for some reasons when eclipse runs terracotta DSO project, it
missed
the path to find log4j?

Any ideas about what happened would be highly appreciated

Thanks

-Charlie-


Altaweel, Mark R. wrote:

One thing you might want to check is the firewall settings on your
remote
nodes. It sounds like some communication might be stalled some place
and
this might be preventing terracota from communicating between your
nodes.
The demo should have agents basically moving around the grid;
however,
outside of that there is not much behavior as this is just a demo of
using
terracotta.

Also, if you might want to look at the repast.distributedBatch
plugin
(more info see:

http://repast.sourceforge.net/docs/RepastParameterSweepsGettingStarte
d.pdf).
This enables distributed batch runs using multiple nodes, which
might
be
useful for the type of simulations you want to do.

Mark
On Jan 4, 2011, at 6:50 PM, charlie1kimo wrote:


Hi all,
Recently I am trying to run repast with terracotta as well. I tried
to
get
the terracotta demo in repast package (the one with
AgentManager.java
and
DoSomeActionAgent.java) to work but to no avail.
Is this demo suppose to do something? or this demo is just a
template
for
putting terracotta in your project?

Here's my test runs with terracott:
I've copied the terracotta demo into a separate project, and
started
from
there.
I configured the eclipse terracotta plugins and run configuration
to
read
the correct tc-config.xml as well.
Due to the bug in eclipse 64bit and terracotta plugin, I have to
start
the
terracotta server from command line, but that's ok because the
terracotta
server started fine; I can also connect to the terracotta managing
console.

Then I ran this repast terracotta demo with DSO terracotta, and the
following is what I got:

2011-01-04 16:41:33,160 INFO - Terracotta 3.4.0, as of
20101104-141154
(Revision 16614 by cruise@su10mo4 from 3.4)
2011-01-04 16:41:33,566 INFO - Successfully loaded base
configuration
from
file at

'/data2/home/charlie/workspace/test_repast_terracotta_demo/testrepas
tterracottademo.rs/tc-config.xml'.
2011-01-04 16:41:33,753 INFO - Log file:

'/data2/home/charlie/workspace/test_repast_terracotta_demo/terracott
a/client-logs/terracotta-client.log'.
2011-01-04 16:41:35,126 INFO - Connection successfully established
to
server
at 127.0.0.1:9510
log4j:WARN No appenders could be found for logger
(MessageCenter.INTERNAL.saf.core.runtime.Boot).
log4j:WARN Please initialize the log4j system properly.

Apparently it can connect to my server, but it died immediately
after
the
connection due to the famous log4j error. (seems lots of people
have
this
error)

So I tried to run this demo without terracotta, and it seemed to
work,
except it hanged at "starting workers" when I initialized it:

Starting...:
list with routing IDs      = [ localhost ]
routing ID for fail-over node = localhost
-- starting workers...

Is this the right behavior for this demo? I have a feeling that
this
demo
is
actually doing NOTHING.
anyone has any ideas? In addition, I believed my log4j can be found
in
the
build path, since it ran without terracotta successfully, it just
hanged
at
the "starting workers."

Lastly, some side notes for people who also testing this, when I
ran
this
demo without terracotta DSO, I have to input parameter for
"routerIDs."
"routerIDs" has to have at least 2 hosts, separated by comma.

Thanks in advance for any suggestions

-Charlie-

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