I coding in julia using JuMP of Juliopt.
I would like to know how to print the solve progress using CbcSolver?
I already used the log level parameter:
m = Model(solver = CbcSolver(log=1))
it works and you can choose between 0 to 3, higher more details.
but my problem is that the log level only prints after the solver finish, i already put the the time limit parameter "sec" but when it is set for higher values never stops and i don't know why!!
m = Model(solver = CbcSolver(sec=90,log=1))
I was going to try callbacks but Cbc does not support callback.
I am positive that there is a way to print because when i use the opensolver in excel a set Cbc to solve it shows the progress.I just dont know how to do this!!
Related
I am simulating the passenger changeover process in metros using the Anylogic Pedestrian Library.
When passengers enter the vehicle, a seat is assigned to them from the seats available near the door (within a given distance) they entered the vehicle through, using a function called lookForSeat. If there is no more free seat available, their boolean parameter wantToSit is set to false and they will stay standing.
The parameter wantToSit is predefined for the Passenger Agent, with default value randomtrue(0.8). But even if I set it to default value = 1, I get the same error.
Then, passengers are separated using a PedSelectOutput block:
Condition 1: if ped.WantToSit = true --> they are sent to their
assigned seat coordinates (PointNode 'seatPoint', null by default)
Condition 2: true (thus, ped.WantToSit = false) --> they stay in the
standing area in the vehicle, no assigned seatPoint necessary in this case.
Now, it works pretty well, but when the majority of the seats is already occupied, suddenly the PedSelectOutput block directs a passenger with ped.wantToSit to its seating point, which gives null and I get the NullPointerException error.
Attached you find the function, the settings of PedSelectOutput and the log from the command.
As it can be seen, the PedSelectOutput sends the passenger through exit 1 (which gives the error due to calling the coordinates of a "null"), despite ped.wantToSit = false.
Any ideas, what is going wrong? For me it really looks like the function is working properly - I have been changing it the whole day until I realized that something in the PedSelectOutput block goes wrong.
Thank you in advance!
Pic 1: pedSelectOutput block and the command with the log
Pic 2: the function lookForSeat assigning the seats from the seat Collection
The problem here is a subtle one, which has caused me many hours of debugging as well. What you need to understand is that the on exit code is only executed once the agent already has a path to which it is going to exit. i.e. the selectOutput and subsequent blocks are already evaluated and only once it is determined that the agent can move to the next block then the on exit code is called. But the agent will continue on its chosen path that has been determined before the on exit code has been executed.
See the small example below:
I have a pedestrian with a variable that is true by default and a select output that checks this value
If I ran the model all pedestrians exit at the top option, as expected
If I change the variable to false on the On Exit code I might expect that all pedestrians will now exit at the second option
But they don't there is no change....
If I add the code to the on enter code then it does..
I have a GtkTreeView object that uses a GtkListStore model that is constantly being updated as follows:
Get new transaction
Feed data into numpy array
Convert numbers to formatted strings, store in pandas dataframe
Add updated token info to GtkListStore via GtkListStore.set(titer, liststore_cols, liststore_data), where liststore_data is the updated info, liststore_cols is the name of the columns (both are lists).
Here's the function that updates the ListStore:
# update ListStore
titer = ls_full.get_iter(row)
liststore_data = []
[liststore_data.append(df.at[row, col])
for col in my_vars['ls_full'][3:]]
# check for NaN value, add a (space) placeholder is necessary
for i in range(3, len(liststore_data)):
if liststore_data[i] != liststore_data[i]:
liststore_data[i] = " "
liststore_cols = []
[liststore_cols.append(my_vars['ls_full'].index(col) + 1)
for col in my_vars['ls_full'][3:]]
ls_full.set(titer, liststore_cols, liststore_data)
Class that gets the messages from the websocket:
class MyWebsocketClient(cbpro.WebsocketClient):
# class exceptions to WebsocketClient
def on_open(self):
# sets up ticker Symbol, subscriptions for socket feed
self.url = "wss://ws-feed.pro.coinbase.com/"
self.channels = ['ticker']
self.products = list(cbp_symbols.keys())
def on_message(self, msg):
# gets latest message from socket, sends off to be processed
if "best_ask" and "time" in msg:
# checks to see if token price has changed before updating
update_needed = parse_data(msg)
if update_needed:
update_ListStore(msg)
else:
print(f'Bad message: {msg}')
When the program first starts, the updates are consistent. Each time a new transaction comes in, the screen reflects it, updating the proper token. However, after a random amount of time - seen it anywhere from 5 minutes to over an hour - the screen will stop updating, unless I change the focus of the window (either activate or inactive). This does not last long, though (only enough to update the screen once). No other errors are being reported, memory usage is not spiking (constant at 140 MB).
How can I troubleshoot this? I'm not even sure where to begin. The data back-ends seem to be OK (data is never corrupted nor lags behind).
As you've said in the comments that it is running in a separate thread then i'd suggest wrapping your "update liststore" function with GLib.idle_add.
from gi.repository import GLib
GLib.idle_add(update_liststore)
I've had similar issues in the past and this fixed things. Sometimes updating liststore is fine, sometimes it will randomly spew errors.
Basically only one thread should update the GUI at a time. So by wrapping in GLib.idle_add() you make sure your background thread does not intefer with the main thread updating the GUI.
I have this piece of code that only executes the first yield's callback and not the next one. I have tried reordering them and it gives the same result:
Only the first yield callback gets executed.
for j in range(totalOrderPages): # the code gets in the loop
productURI = feedUrl % (productId, j + 1)
print "Got in the loop" # this gets printed
yield response.follow(productURI, self.parse_orders, meta={'pid': productId, 'categories': categories})
yield response.follow(first_page, self.parse_product, meta={'pid': productId, 'categories': categories})
Is there anything in Python or scrapy that prevents 2 consecutive yields?
Second question:
I'm trying to debug this using pdb.set_trace() but when I try to execute yield from the debugging console, it give the yield outside function error.
Does anyone know how can we debug yields?
Thank you.
Without knowing more details, like the redirection behaviour of the specific site or the contents of the variables (feedUrl, productURI, first_page, etc), I would say that some requests are being dropped by the Dupefilter (https://doc.scrapy.org/en/latest/topics/settings.html#dupefilter-class).
I'd recommend you to enable the DEBUG logging level and setting DUPEFILTER_DEBUG=True, and check the logs to see if that's the case.
You can force requests to bypass the Dupefilter by adding dont_filter=True when calling response.follow.
If this doesn't solve your issue, please share your crawl logs so we can have more information to debug the issue. Happy scraping!
I've created an experiment in psychopy builder in which participants must vocally name pictures presented onscreen (for example, if a picture of a chair appears, the participant has to respond by saying "chair"). I've set up a code component to detect each vocal response, which ends the trial and initiates the next one. This part of the experiment works well, however I'm having trouble integrating EEG recording.
Some important information:
My trial loop reads images and triggerVal's out of a .csv file. I have an image component (called english_naming) that displays images for participants to name out-loud. The component's STOP field is defined as $vpvk.event_onset - this forces the trial to end and the next one to begin upon detection of a vocal response.
So, here is my (working) code component at present:
Begin Experiment:
from psychopy import parallel
port = parallel.port(address=61432)
Begin Routine
vpvk = vk.onsetVoiceKey(
sec=10) # creates the voice key
vpvk.start() #starts recording.
port.setData(triggerVal) # tells psychopy to read trigger values from the .csv file
End Routine
vpvk.stop() # ends the recording
port.setData(0) # resets the trigger value to 0 for the start of the next trial
My problem is this
At present, parallel port events are time-locked to the start of each trial, but I need them to be time-locked to participant's vocal responses. I tried inserting if vpvk.event_onset(): above port.setData(triggerVal), but this fails to generate any trigger codes at all. I've also tried if english_naming==FINISHED but the same problem occurred. I've tried a bunch of variants on these two lines of code, but nothing I can think of seems to work.
I would really really appreciate any advice on this problem. Thanks in advance!
I normally work with shellscript, but I'm dabbling in Jython for my current client. I need to extract and display business data from a failed event in WebSphere, and I can't figure out how to do it.
The code I have so far is
green='\033[0;32m'
cyan='\033[0;36m'
clear='\033[0m'
##########################################################################
import time
today=time.asctime().split(' ')
objstr = AdminControl.completeObjectName('WebSphere:*,type=FailedEventManager')
obj = AdminControl.makeObjectName(objstr)
fecount = AdminControl.invoke(objstr,"getFailedEventCount")
msglist = AdminControl.invoke_jmx(obj,'getAllFailedEvents',[0],['int'])
i=0
for fe in msglist:
i+=1
ftd=str(fe.getFailureDateTime()).split(' ')
if ftd[1]==today[1] and ftd[2]==today[2] and ftd[5]==today[4]:
col=green
else:
col=cyan
fstr="%4d: %-46s "+col+"%s"+clear
print fstr % (i, fe.getMsgId(), fe.getFailureDateTime() )
Which displays the message ID and the timestamp of the event. But I've looked around the net, and can't figure out how to get from what I've got to actually extracting specific parameters from the business data for each failed event.
I'd appreciate if somebody with greater knowledge of Jython than I have could point me in the right direction.
Thanks
Douglas
Not sure if you got your answer.
Posting what I know to help who is looking for:
You can use getFailedEventParameters to get business data of failed events.
scaDetail = AdminControl.invoke_jmx(obj,'getEventDetailForSCA',[event], ['com.ibm.wbiserver.manualrecovery.FailedEvent'])
eventDetailParameter = scaDetail.getFailedEventParameters()
for failedParameter in eventDetailParameter:
print failedParameter.getName()
print failedParameter.getType()
print failedParameter.getValue()