Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Bruno Chareyre posted a new comment: >I actually come to a bug message using the copy/paste script problem After I reiterated that copy/paste was a wrong approach I'm asked to help solving a copy/paste problem... is that a joke? :) >would you please send me a mail No sorry. Please use launchpad + external repository if you need to share big files (this being said, note that I'm not going to download them). Or better, organize everything in one single short script that you will post here. Bruno -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 azim posted a new comment: Hi De zhang, I had the problem and it is fixed now. I think, if you show a little part of your code so that covers the section causing errors, will be helpful for solving the problem. it worked for me. Azim -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 De zhang posted a new comment: Hi Bruno, My e-mail is 852321...@qq.com, would you please send me a mail so that I can mail the files to you? Thank you~ Best regard! De Zhang -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 De zhang posted a new comment: Hi Bruno, I actually come to a bug message using the copy/paste script problem. I save a result as '1.yade', and in the second script , it could be loaded. but when I finished the second script and saved as '2.yade', the new yade could not reload the '2.yade' with the message 'postcode and materials were unavaible and report the bug'. Can I have your email and sent the saved file and script to you? And I can make sense of your method but I was a little confused your procedure about calling the saved file by file name? I was making a simulation which need four stages to accomplish, how to deal with it? -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Bruno Chareyre posted a new comment: @Luc I see, but copy/paste is not something to recommend, in general. "import something" maybe. "copy/paste" no. I think the best answer to "How to reload without suffering from undefined?" is "reload in the same script" in most cases - given current design. Bruno -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Luc Scholtès posted a new comment: I just gave a solution to solve De Zhang's problem which was, basically: How to reload a simulation without suffering from the undefined functions and variables? But of course, you are absolutely right, we should anticipate such problem by including the dedicated lines in the initial script. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Bruno Chareyre posted a new comment: >copy/paste from initial script If it fits in a file, why would you generate a second file with the same content? Not a good idea. As the functions will be progressively modified and improved it will lead to different versions of them in different scripts in many cases (or painful editing to go change the same function in every scripts in the list, but pain is why people will forget that part). Same remark for parameters, instead of changing them in one place you have to change them in multiple places, it can make benchmark execution very difficult. That's why I would suggest self-contained scripts like [1] in answer #6. In my view the multiscript approach is not something we want to advise to standard yade users: no clear advantage over a single script, leads to bad practices such as duplicated code, generates a lot of questions on launchpad. In complex cases it may be required, but not here. Bruno -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed:
https://answers.launchpad.net/yade/+question/665314
Luc Scholtès posted a new comment:
Try to redefine the functions and global variables (copy/paste from
initial script) into your new simulation before calling O.run().
I usually create a new python script when I want to load a previous
simulation which include
O.load('nameOfSimulation')
and the custom functions
def customFunction():
do this and that
Then, you should be able to call for
O.run()
directly in it.
Luc
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Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed:
https://answers.launchpad.net/yade/+question/665314
De zhang posted a new comment:
Dear azim,
I have met the same problem as yours, and I could not understand your solutions
as reading your answers, I saved a script A as 'SaveA.yade.gz' or 'SaveA.yade',
when I opened a new yade to O.load('SaveA.yade.gz') or O.load('SaveA.yade.gz'),
I can't continue to run the script A, it showed that the global parameters and
def() functions are not defined at all. How to solve this problem?
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Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 azim posted a new comment: Hi Bruno, [1] really solved my problem. thanks. this is what i really was looking for, as i said in #2: # -*- coding: utf-8 -*- # Copyright (C) 2010 by Bruno Chareyre * # bruno.chareyre_at_grenoble-inp.fr * ## This short modified version of examples/triax-tutorial/script-session1.py shows how to reload saved states and continue ## without the need to save user variables and functions separately (a typical issue as seen in e.g. ## https://answers.launchpad.net/yade/+question/665314). ## Here the technique is combined with batch execution, getting some parameters from readParamsFromTable(), ## but it is not a requirement. ## Comments on the simulation itself can be found in script-session1.py nRead=readParamsFromTable( num_spheres=1001, compFricDegree = 30, key='_triax_base_', unknownOk=True ) from yade.params import table ## Define the filename for saved state. By including paramater values in the name ## we make sure that a new state is generated for each parameter set - including a different 'key' name. initStateFilename="confined_N="+table.key+str(table.num_spheres)+"_fric="+str(table.compFricDegree)+"_.yade.gz" secondStateFilename="load_N="+table.key+str(table.num_spheres)+"_fric="+str(table.compFricDegree)+"_.yade.gz" thirdStateFilename="final_N="+table.key+str(table.num_spheres)+"_fric="+str(table.compFricDegree)+"_.yade.gz" ## Check if a saved state exists and proceed to function/variable declarations as usual. import os.path savedState = os.path.exists(initStateFilename) savedState0 = os.path.exists(secondStateFilename) ## user defined variables num_spheres=table.num_spheres key=table.key targetPorosity = 0.43 compFricDegree = table.compFricDegree finalFricDegree = 30 rate=-0.02 damp=0.2 stabilityThreshold=0.01 young=5e6 mn,mx=Vector3(0,0,0),Vector3(1,1,1) import time startTime=time.time() ## user function saving variables, it will not be saved with the simulation; which is ok since it is always re-defined here. from yade import plot def history(): plot.addData(e11=-triax.strain[0], e22=-triax.strain[1], e33=-triax.strain[2], ev=-triax.strain[0]-triax.strain[1]-triax.strain[2], s11=-triax.stress(triax.wall_right_id)[0], s22=-triax.stress(triax.wall_top_id)[1], s33=-triax.stress(triax.wall_front_id)[2], i=O.iter) O.materials.append(FrictMat(young=young,poisson=0.5,frictionAngle=radians(compFricDegree),density=2600,label='spheres')) O.materials.append(FrictMat(young=young,poisson=0.5,frictionAngle=0,density=0,label='walls')) walls=aabbWalls([mn,mx],thickness=0,material='walls') wallIds=O.bodies.append(walls) O.engines=[ ForceResetter(), InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Box_Aabb()]), InteractionLoop( [Ig2_Sphere_Sphere_ScGeom(),Ig2_Box_Sphere_ScGeom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_ScGeom_FrictPhys_CundallStrack()] ), GlobalStiffnessTimeStepper(active=1,timeStepUpdateInterval=100,timestepSafetyCoefficient=0.8), TriaxialStressController(maxMultiplier=1.+2e4/young, finalMaxMultiplier=1.+2e3/young, thickness = 0, stressMask = 7, internalCompaction=True,label="triax"), PyRunner(iterPeriod=20,command='history()',label='recorder'), NewtonIntegrator(damping=damp,label="newton") ] def continueRun(): triax.internalCompaction=False setContactFriction(radians(finalFricDegree)) triax.stressMask = 5 triax.goal2=rate triax.goal1=-2 triax.goal3=-2 newton.damping=0.1 O.run(100,True) print "Total execution time (savedState0=",str(savedState0),"): ",str(time.time()-startTime),"s" O.save(thirdStateFilename) ## the cloud generation is made conditional only because makeCloud() takes time for large num_spheres. Regenerating an initial ## cloud before reloading a saved state would be harmless but useless since the cloud will be replaced by the saved state anyway. ## materials defined hereabove will also be replaced by the the reloaded ones (which are identical) with no real impact on ## initialization time, hence no real need for a condition in that case from yade import pack sp=pack.SpherePack() if not savedState0: if not savedState: sp.makeCloud(mn,mx,-1,0.,num_spheres,False, 0.95,seed=1) O.bodies.append([sphere(center,rad,material='spheres') for center,rad in sp]) triax.goal1=triax.goal2=triax.goal3=-1 ## If no dense state has been generated previously proceed to confinement, else reload if not savedState: print "No saved state - running isotropic confinement for
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Status: Answered => Solved azim confirmed that the question is solved: Thanks Bruno Chareyre, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Bruno Chareyre proposed the following answer: Hi Azim, it seems I did not answer your last post. The problem in the logic is that you defined the function after using them. And the condition "if (saved=StableState.yade.gz)" is not a valid syntax. I just commited [1] a new example script which shows how to workaround the issue, please check it. Bruno [1] https://github.com/yade/trunk/commit/f47f962d8b650a4e9923582457d352a58a51cbab -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 azim posted a new comment: Hi Jerome, thanks for your references. I really don't want to go so deep. i just wanted to solve THE problem and correct comment in #2. Thanks -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Status: Open => Answered Jérôme Duriez proposed the following answer: For more details regarding what is saved / loaded, looking into the source code, you may give a look at https://yade-dem.org/doc/prog.html#serialization and https://yade-dem.org/doc/prog.html#yade-class-base-doc -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 azim posted a new comment: sorry dear bruno, def x function and def y function are outside the if- else conditions!!! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed:
https://answers.launchpad.net/yade/+question/665314
Status: Answered => Open
azim is still having a problem:
if the below procedure is True? it means that my problem is solved:
for what i mentioned in [1], it will be something like this:
Script A in one ScriptABC:
##
ScrptABC.py
(define parameters,engines)
if (saved=StableState.yade.gz):
reload(StableState.yade.gz)
(some runs and plots)
O.save('firstcalculation.yade.gz')
call y function
elif (Saved= StableState.yade.gz and firstCalculation.yade.gz):
reload('firstCalculation.yade.gz')
call y function
else:
createpackings
(some runs and plots)
O.Save('StableState.yade.gz')
call x function
def x function:
(some runs and plots)
O.save('firstcalculation.yadegz.py')
call y function
def y function:
(some runs and plots)
O.save('finalsatate.yadegz.py')
###
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Re: [Yade-users] [Question #665314]: save/load precedure
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Status: Open => Answered Bruno Chareyre proposed the following answer: >what parameters are supposed to be saved in every save/load procedure? The content of "O" (bodies, engines, interactions). >and what parameters show be defined again in new script?? Everything else. You can escape the problem by not using two different scripts, and still avoid re-running the first part. Start the script with: if (saved): reload() else: #create packing All function definitions and parameters should be outside this if-else, of course, so they are re-defined consistently every time. I hope it helps Bruno -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
