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[azim <question662276@xxxxxxxxxxxxxxxxxxxxx>]

Question #662276 on Yade changed:
https://answers.launchpad.net/yade/+question/662276

Description changed to:
Dear all,

Here is my Problem. In running oedometer.py I got this result:

Qin= -7.87821707663e-07  Qout= 7.87395513513e-07.........>>>>>   Qin is
not completely equal to Qout.???

I thought  it may be incorrect. because when I was running my script, I added FlowEngine to my simulation loop in ""Inspector"". It did not work, so I added TFlowEngine and it worked(I think so, at least I saw the movements of the particles). for being more sure about that:  
 
I typed :  "yade-2017-10-26.git-c434d0a --check" in Terminal and the results are as following:

Welcome to Yade 2017-10-26.git-c434d0a 
###################################
running:  checkLiquidMigration.py
This checkLiquidMigration.py cannot be executed because LIQMIGRATION is disabled
Status: success
___________________________________
###################################
Skipping checkList.py, because it is in SkipScripts
###################################
running:  DEM-PFV-check.py
DEM-PFV: unbalanced Qin vs. Qout ( -4.06958960523e-06  vs.  4.06922520944e-06 )
(INFO) DEM-PFV: More than 60\% of cpu time in FlowEngine ( 97.3280306481 %). Should not happen with efficient libraries (check blas/lapack/cholmod implementations)
DEM-PFV-check.py  failure
###################################
running:  checkWeight.py
Precalculated weight 756.093387
Obtained weight 756.093387
Status: success
___________________________________
###################################
running:  checkCapillaryModels.py
Status: success
___________________________________
###################################
running:  checkViscElEng.py
Precalculated en value 0.736356797441
Obtained en value 0.736356797441
Status: success
___________________________________
###################################
running:  checkPolyhedraCrush.py
Checkpoint: force values and number of bodies are OK! Iteration 250
Checkpoint: force values and number of bodies are OK! Iteration 300
Checkpoint: force values and number of bodies are OK! Iteration 310
Checkpoint: force values and number of bodies are OK! Iteration 330
Status: success
___________________________________
###################################
running:  checkWirePM.py
Status: success
___________________________________
###################################
running:  checkTestDummy.py
checkTest mechanism
Status: success
___________________________________
###################################
running:  checkGravity.py
Status: success
___________________________________
###################################
running:  checkClumpHopper.py
Iter 10000: Total number of generated spheres 1448, removed particles 0, current particles 1448, kinEnergy 21324.5
Iter 20000: Total number of generated spheres 2896, removed particles 157, current particles 2739, kinEnergy 50007.9
Iter 30000: Total number of generated spheres 3620, removed particles 812, current particles 2808, kinEnergy 39827.2
Iter 40000: Total number of generated spheres 5068, removed particles 1630, current particles 3438, kinEnergy 35535.8
Iter 50000: Total number of generated spheres 5068, removed particles 2111, current particles 2957, kinEnergy 27032.6
Status: success
___________________________________
###################################
running:  checkViscElPM2.py
Status: success
___________________________________
###################################
running:  checkViscElPM.py
Status: success
___________________________________
###################################
running:  checkTestTriax.py
File ./checkTest.yade moved into /tmp/tmpBzsNYR/ directory
File ./_Unloaded_380_3.spheres moved into /tmp/tmpBzsNYR/ directory
File ./_Unloaded_380_3.xml moved into /tmp/tmpBzsNYR/ directory
File ./WallStresses moved into /tmp/tmpBzsNYR/ directory
Status: success
___________________________________
###################################
running:  checkSaveLoadClumps.py
Status: success 


Q1) I think there is a problem in DEM-PFV-check.py and checkLiquidMigration.py. any help for solving this problem is appreciated (if it is still a problem, I don't know yet)?

Q2) what is the difference between FlowEngine and FlowEngineT???

Q3)is there any reference for being more familiar with flowEngine family and their suitable applications?:
(FlowEngine.....FlowEngineT......DFNFlowEngine....FlowEngine_PeriodicInfo)

Thanks a lot for your help in advance.

Azim

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