Google Ortools - trouble with routing example - or-tools

I am having an odd issue with Google Ortools vehicle routing example, found here:
https://developers.google.com/optimization/routing/tsp/vehicle_routing
Using Windows 10, and Python 3.6...
When executing the full program code provided in the link above, the program freezes up and exits. Command line provides the following:
WARNING: Logging before InitGoogleLogging() is written to STDERR
F0502 21:33:22.115679 7972 search.cc:2658] Check failed: step > 0 (0 vs. 0)
*** Check failure stack trace: ***
I have honed the code causing the freeze down to this line of code:
assignment = routing.SolveWithParameters(search_parameters)
I am certain I have the library properly installed because other examples of the program have run successfully. I attempted to use Visual Studio, and even went so far as to disable my second GPU.
I am wondering if anyone has encountered this issue and possibly knows how to fix. Thank You.

Issue was solved as follows:
Original model on google's website creates the following variable:
search_parameters = pywrapcp.DefaultRoutingSearchParameters()
I had changed to:
search_parameters = pywrapcp.RoutingModel.DefaultModelParameters()
But the required change should be:
search_parameters = pywrapcp.RoutingModel.DefaultSearchParameters()

Related

How to use custom dev-tool for Brave Browser?

I'm debugging wasm code in dev-tool, there is a line limit for displaying the wasm source code, which is 1000*1000 lines by default, when exceeds the limit, it shows ";; .... text is truncated due to the size":
My wasm is larger than that, so I'm trying to build my custom dev-tools. My environment is Kali Linux + Brave Browser.
According to this article, I commented out the lines:
And built successfully, the only difference is that the output directory in the article is ".../resources/inspector" and mine is ".../resources/inspector_overlay".
I tried launch it with --custom-devtools-frontend=file:///root/.../inspector_overlay, when press F12, the dev-tool fails to open, it shows error:
[82506:82549:0121/223355.672780:ERROR:devtools_ui_data_source.cc(306)] Failed to read /root/Downloads/devtools-frontend/out/Default/resources/inspector_overlay/devtools_app.html
[82506:82506:0121/223355.693282:ERROR:CONSOLE(67)] "Uncaught TypeError: Cannot read properties of undefined (reading 'setInspectedTabId')", source: devtools://devtools/bundled/devtools_compatibility.js (67)
How to make it work?
I found from this discuss that the correct path should be gen/front_end, so the param is: --custom-devtools-frontend=file:///root/Downloads/devtools-frontend/out/Default/gen/front_end

Why is the generation of my TYPO3 documentation failing without a proper error?

I have a new laptop and I try to render the Changelogs of TYPO3 locally based on the steps on https://docs.typo3.org/m/typo3/docs-how-to-document/master/en-us/RenderingDocs/Quickstart.html#render-documenation-with-docker. It continues until the end but show some non-zero exit codes at the end.
project : 0.0.0 : Makedir
makedir /ALL/Makedir
2021-02-16 10:32:50 654198, took: 173.34 seconds, toolchain: RenderDocumentation
REBUILD_NEEDED because of change, age 448186.6 of 168.0 hours, 18674.4 of 7.0 days
OK:
------------------------------------------------
FINAL STATUS is: FAILURE (exitcode 255)
because HTML builder failed
------------------------------------------------
exitcode: 0 39 ms
When I run the command in another documentation project, it renders just fine.
I found the issue with this. It seemed the docker container did not have enough memory allocated. I changed the available memory from 2 Gb to 4 Gb in Docker Desktop and this issue is solved with that.
You already solved the problem. But in case of similar errors: To get more information on a failure, you can also use this trick:
Create a directory tmp-GENERATED-temp before rendering. Usually, this is automatically created and then removedd after rendering. If you create it before rendering, you will find logfiles with more details in this directory.
See the Troubleshooting page.
I had some errors where I found the output in the console insufficient and this helped me to narrow down the problem.
In case of other problems, I would file an issue in the GitHub repo: https://github.com/t3docs/docker-render-documentation
Note: This is specific to TYPO3 docs rendering and may change in the future.

Commands invalid after 'import_board_preset' command

Currently I am trying to follow the MathWorks tutorial 1 to register a TE0720 with a TE0701-6 carrier board in Matlab. I followed the instructions, designed the block design and exported it as advised. Using the Matlab HDL Workflow Advisor I can follow unitl step 4.1 Create Project. Here, I get the following error message:
invalid command name "CONFIG.PCW_INCLUDE_ACP_TRANS_CHECK"
while executing
"CONFIG.PCW_INCLUDE_ACP_TRANS_CHECK {0} CONFIG.PCW_IOPLL_CTRL_FBDIV {30} CONFIG.PCW_IO_IO_PLL_FREQMHZ {1000.000} CONFIG.PCW_IRQ_F2P_INTR {1} CONFIG..."
(procedure "create_root_design" line 49)
invoked from within
"create_root_design """
(file "vivado_custom_block_design.tcl" line 986)
while executing
"source vivado_custom_block_design.tcl"
(file "vivado_create_prj.tcl" line 15)
This is regarding the exported block design in the corresponding *.tlc file.
After deleting the line mentioned in the error, the error persists, but for the following line. This holds true until I deleted all lines following
CONFIG.PCW_IMPORT_BOARD_PRESET {preset}
It seems to me that once the preset for the board is imported, all following commands are seen as invalid. If I put this line in the end of the list though, I get the error
ERROR [Common 17-69] Command failed: Missing name/value pair in -dict argument.
If I remove this line, I get the error
ERROR [BD 41-1811] The interconnect </axi_interconnect_0> is missing a valid master interface connection
ERROR [Common 17-39] 'validate_bd_design' failed due to earlier errors.
Is there a way to fix this or what is the problem here?
EDIT: I am using Vivado 2017.4 from the Vivado HL WebPACK. Could it be that there is a feature not available in this version for rebuilding the project as MATLAB intends to do?
EDIT 2: I started the complete tutorial fresh from scratch again and now I only get the error
ERROR: [BD 41-1811] The interconnect </axi_interconnect_0> is missing a valid master Interface connection
when going throught the HDL Workflow Advisor. As far as I understand the issue, Vivado searches for something to connect the axi_interconnect to. But isn't this the interface port (DUT) as described later in the tutorial (end of step 2 in Register the custom reference design in HDL Workflow Advisor, where the compiled simulink model should be connected?

Can't Get The matlabpool Started

I'm running MATLAB on since about one and a half year now. And I've been trying to get matlabpool ready to go once in nearly every three months. Before I give up on it completely, I've decided to ask for help. :)
My problem starts with matlabpool command. Whenever I type in the matlabpool command, I get this :
One or more output arguments not assigned during call to "system_dependent".
Error in matlabpool>iIsOnClient (line 73)
onclient = ~system_dependent('isdmlworker');
Error in matlabpool>iVerifyJava (line 64)
if iIsOnClient()
Error in matlabpool (line 10)
iVerifyJava();
After some research and sleepless nights, I've found out that one has to settle the things down with the "Cluster Profile Manager". But I never did have the opportunity to see it working either. Here is what I get after clicking Cluster Profile Manager from Parallel panel :
com.mathworks.jmi.MatlabException: Feature isdmlworker not found
at com.mathworks.jmi.NativeMatlab.SendMatlabMessage(Native Method)
at com.mathworks.jmi.NativeMatlab.sendMatlabMessage(NativeMatlab.java:266)
at com.mathworks.jmi.MatlabLooper.sendMatlabMessage(MatlabLooper.java:120)
at com.mathworks.jmi.Matlab.mtFeval(Matlab.java:1710)
at com.mathworks.jmi.MatlabWorker.feval(MatlabWorker.java:197)
at com.mathworks.toolbox.distcomp.ui.profile.model.MatlabProfileManager$1.runOnMatlabThread(MatlabProfileManager.java:80)
at com.mathworks.jmi.MatlabWorker$2.run(MatlabWorker.java:79)
at com.mathworks.jmi.NativeMatlab.dispatchMTRequests(NativeMatlab.java:475)
Attempt to reference field of non-structure array.
Error in parallel.internal.ui.AbstractValidationManager (line 20)
obj.Validator.addlistener('ValidationStarted', ...
Error in parallel.internal.ui.ValidationManager (line 21)
obj#parallel.internal.ui.AbstractValidationManager();
com.mathworks.jmi.MatlabException: Attempt to reference field of non-structure array.
at com.mathworks.jmi.NativeMatlab.SendMatlabMessage(Native Method)
at com.mathworks.jmi.NativeMatlab.sendMatlabMessage(NativeMatlab.java:266)
at com.mathworks.jmi.MatlabLooper.sendMatlabMessage(MatlabLooper.java:120)
at com.mathworks.jmi.Matlab.mtFevalConsoleOutput(Matlab.java:1778)
at com.mathworks.jmi.MatlabWorker.feval(MatlabWorker.java:195)
at com.mathworks.jmi.MatlabWorker.feval(MatlabWorker.java:172)
at com.mathworks.toolbox.distcomp.ui.profile.model.ValidationManager$1.runOnMatlabThread(ValidationManager.java:45)
at com.mathworks.jmi.MatlabWorker$2.run(MatlabWorker.java:79)
at com.mathworks.jmi.NativeMatlab.dispatchMTRequests(NativeMatlab.java:475)
After getting this message, the Cluster Profile Manager pops up, but doesn't really shows anything besides "wait" sign. I've checked my Distributed Computing Licence and that too is looking fine.
license checkout Distrib_Computing_Toolbox
command returns 1.
By the way, there is another error message which I suspected to have a connection with my problem of some kind. I get this in every MATLAB start:
Error using feature
Feature isdmlworker not found
Error in matlabrc (line 187)
if ~(ismcc || isdeployed || feature('isdmlworker')) && usejava('jvm')
In addition to all of those; I get this message whenever I try to open "Parallel Preferences" from Environment tab :
com.mathworks.jmi.MatlabException: Feature isdmlworker not found
at com.mathworks.jmi.NativeMatlab.SendMatlabMessage(Native Method)
at com.mathworks.jmi.NativeMatlab.sendMatlabMessage(NativeMatlab.java:265)
at com.mathworks.jmi.MatlabLooper.sendMatlabMessage(MatlabLooper.java:120)
at com.mathworks.jmi.Matlab.mtFeval(Matlab.java:1619)
at com.mathworks.jmi.MatlabWorker.feval(MatlabWorker.java:197)
at com.mathworks.toolbox.distcomp.ui.profile.model.MatlabProfileManager$1.runOnMatlabThread(MatlabProfileManager.java:72)
at com.mathworks.jmi.MatlabWorker$2.run(MatlabWorker.java:79)
at com.mathworks.jmi.NativeMatlab.dispatchMTRequests(NativeMatlab.java:440)
I've tried to find the function system_dependent.m but it doesn't seem to exist. Other common spots of the errors I get, the function "feature.m", the option "isdmlworker" are other mysteries that I couldn't find any kind of information about.
I really appreciate if anyone can help me with the problem I've encountered starting MATLAB's distributed computing system.
Edit: I'm working on an Ubuntu 14.04 and my MATLAB version is R2014a.
This appears to be an issue with your specific installation of Ubuntu 14.04. It is possible though that it relates to how matlabpool spawns worker threads in R2014a given that the error occurs in com.mathworks.jmi.NativeMatlab.dispatchMTRequests().
matlabpool has been tested to work without issue on Ubuntu 15.04 and 15.10. It may not be an ideal solution but upgrading Ubuntu to 15.04 or 15.10 and reinstalling MATLAB R2014a should resolve the issue.

CoffeeScript compiler errors suppressed under Node 0.5.10-pre

When my script fails to parse for any reason, I get a stack trace from the compiler, with no insight at all into where in my script the problem lies:
mpurvis#citadel:~/coffee$ coffee -c Test.coffee
/usr/local/lib/node_modules/coffee-script/lib/command.js:15
return process.binding('stdio').writeError(line + '\n');
^
Error: No such module
at /usr/local/lib/node_modules/coffee-script/lib/command.js:15:20
at /usr/local/lib/node_modules/coffee-script/lib/command.js:167:7
at /usr/local/lib/node_modules/coffee-script/lib/command.js:115:26
at [object Object].<anonymous> (fs.js:108:5)
at [object Object].emit (events.js:64:17)
at afterRead (fs.js:1074:12)
at Object.wrapper [as oncomplete] (fs.js:246:17)
For now, it's just a toy script to try the system out, so I can usually just experiment until it works again, but that would be impossible in a file of any size. Is there some trick I'm not seeing to get the line where the error occurred?
Thanks!
the latest version from node isn't full compatible with cs..the node_stdio module ws removed...a simple way for fix it is open /usr/local/lib/node_modules/coffee-script/lib/command.js and change the line 15
process.binding('stdio').writeError(line + '\n')
for
process.stderr.write(line + '\n')
always you can get more help from github issues section
https://github.com/jashkenas/coffee-script/commit/c77f7737a5d94a05a999109810ea7634f540e1e2
good luck and happy coding
This doesn't look like a syntax issue. The error is coming from command.js, which is what defines the coffee command-line utility. If it were a compiler error, it would be from coffee-script.js.
So why is the process.binding('stdio') bit in command.js failing? There are two possibilities I can think of:
You're using a weird shell (or a weirdly configured one) that doesn't play nice with Node's version of stdio. This seems unlikely, but it's possible...
You're using a version of Node.js that CoffeeScript isn't currently compatible with. What do you get when you do node -v? Your safest bet is the latest 0.4.x, since those are stable releases (0.5.x is experimental).
This question is from awhile back.
Node 0.6.x throws a similar error with CoffeeScript 1.1.x; upgrading to 1.3.x does the trick.
Likely 2 different coffee-scripts on your system. check which coffee, than track down the older one and ice it. I had one from an install last summer (v1.1), it's all cleared up now.