multithreading - Python multiprocessing/threading with shared variables that only will be read -

multithreading - Python multiprocessing/threading with shared variables that only will be read -

Considering the code given below, I would like to run 3 experiments at once, the experiments are free, only one The thing they share is a model object, which they read only.

Since there is no difficulty in threading this, how can I do this in Python? I want to use a pool or to make sure that only three experiments run at one time. Will I use multi-processing? If so, how short and shortest?

  #! / Usr / bin / env python2.6 Import time range Model: name = "" def __init __ (self, name): selfname.name = name class experiment: id = 0 model = none did = wrong def __init __ ( Self, id, model): self.id = id self.model = Model DEF def (self): _ (060) for category: print "% s experiment% d"% (self.model.name, Id) time.sleep (1) self.done = true if __name__ == "__main__": experiments = [] model = model ("in the number (0,5): (experiment (i, model)) for experiments

Check docs to run 3 experiments in the same time, special From the form:

There are so many examples that you should get on your way. For example, I can come up with:

/ Code / # / / bin / bin / python2.6 Import time import multiplexing class Model: name = "" def __init __ (auto, name): selfname.name = name def run_experiment (id, model): print "experiment% d "% Id" for range (0, 60) is starting: print "is% s experiment% d"% (model.name, id) from% _ "result for% id" __name__ == "__main__": model = model ("statistical model") experiments = ((i, model) (0, 5)) In the category (= 0, 5) pool = multiprocessing. Poll (3) Results = [for use experiment.apple_async (run_desk, experiment) for results: r = result.get () # R # or nothing, I think ...

 < What do docs say about using the  multiprocessing  module: 
   The functionality within this package is required by the th children The method can be imported by the  __ main___  This programming is included in the guidelines, however it It is worth noting here. This means that some examples, such as  multiprocessing.Pool , will not work in interactive interpreter


















Get link





Facebook





X





Pinterest





Email





Other Apps




Comments





Post a Comment







Popular Posts




Unable to get a fresh ASP.NET MVC project running with Visual Studio
2008 -



    This is a very basic question. I'm asking this silly about this, but I'm stuck something else and hopefully That something here can save me some time. So I open VS2008, to download the new ASP.NET MVC web application and click OK I want to prepare a test project. I debug my new MVC project to hit F5 then I enable the debugging to the web. I choose to modify the config file. It goes where I get a page load error.   Firefox can not establish a connection to the server on the local host: 57323.   Do I have to do something special for Vista? Or I should do something with IIS   Thanks for helping a noob   6/30/2009 update   OK, I think that I VS2008 may need to be reinstalled with the ASP.NET Development Server port. I have tried to do everything that I have suggested. I've marked Default.aspx as the start page. I tried to open it in Firefox / IE 8 / and Chrome. I tried to uninstall / reinstall ASP.NET MVC, which was not working. I tried telnetting with Putin with a local ho...






delphi - Mouseover hint for TChart series value -



    I am using a TChart in Delphi 7, and I want to display charts sometime. I am using the following code to set the chain value to a database query:    chart1.FreeAllSeries; Chart1.SeriesList.Clear; Chart1.AddSeries (TBarSeries.Create (self)); TBarSeries (chart1.Series [0]) BarStyle :. = BsRectGradient; Stop starting with Query 1; Executed; While EOF does not start chart1.Series [0]. Add (field 'flags' ('sum_actual_days'), Field Astrstring ('contract_no')); the upcoming; End; End;    Each time (value) is now showing both the label below the bar and in a yellow rectangle above the bar.   Rather than repeating the amount of label twice, I have some additional information from the query that I would like to show above the bar rather than the label (or, preferably, as a mouseover signal). Can it be done with TChart? And how ...?      This can be done with a TChart using the onMouseMeave event of the chart. Something like this should start with you:    Process TForm...






sql - Incorrect syntax near the keyword 'table' -



    I'm getting this error what I'm doing is trying to get data from a table and a db and Keep it in another DB and table. The tables are not exactly the same, I am using a FETCH cursor, so I get the first line from the DB1 table and then keep each column value in the declared variable. Then I run an assembly statement in db2 table and get the next value. All of these are working properly because it runs properly, but in the end I get this error,   Wrong syntax near the keyword 'table'.   In the entire transaction details, an attempt / catch with the error of expression in the Cat block, apart from this, I do not know what is the reason for it.   Here is the code    added to prevent additional result set at SET NOCOUNT - Interfering with the SELECT statement. Set nosenate on; TRY begin transaction sets ITENDITY column off --TURN identity_insert [dB] start [dbo] [TEST] all CONSTRAINTS table --TURN [dB] change [dbo] [TEST] NOCHECK barrier All -.... Insert statement here @...








Powered by Blogger