WebMathematica for Mathematica V10 (Yes!)

Questions
1

Does anyone know when webMathematica will be updated to work with version 10?

2

Yes.. it works! Itā€™s just change the path.

PS:Do not forget that itā€™s commented in the standard MSPConfiguracion.xml file. Itā€™s not enough to change the name.

3

Hi Rodrigo,
are you working with webMathematica and Math10? Iā€™m not able to run it. For each example in the documentation I get the following error:
FrontEndError: ExportString failed:\

Notebook[{Cell[BoxData[RowBox[{FractionBox[x, 2], -,\

RowBox[{FractionBox[1, 4], , RowBox[{Sin, [, RowBox[{2, , x}],\

]}]}]}]], Output, ShowCellBracket ā†’ False, CellMargins ā†’ {{0, 0}, {0,\

0}}, PageWidth ā†’ 800]}, WindowSize ā†’ 900]

I changed the configuration file adding the path to Mathematica 10.0 and it works, indeed the following
ā€œ< msp:evaluate >$Version< /msp:evaluate >ā€ works fine.
Please, let me know if you have any hint.
Thanks in advance.
Roberto

4

Mathematica 10 is not officially supported by webMathematica, but it can be made to work reasonably well.

Roberto, Iā€™m guessing that you are using a Windows machine? If thatā€™s true, then the problem is that Mathematica 10ā€™s front end uses more memory than allowed by the default desktop heap setting for noninteractive users.

You can read more about it here: [Increase the maximum number of concurrent policy instances - Orchestrator | Microsoft Learn][1]

The short answer is that you can edit the registry to increase this value. Then the front end should work fine in webM.

5

Hi Roberto,
Can you try this:

The suggestion is to to increase the desktop heap configuration via
the registry.

Windows limits the amount of memory allocated to noninteractive users
(such as kernels launched by webMathematica). When these kernels
need to perform a calculation that requires the front end (example
render a plot), the memory allocation setting may prevent the
launching of the front end. To solve this problem, edit the registry.

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session
Manager\SubSystems\Windows %SystemRoot%\system32\csrss.exe
ObjectDirectory=\Windows SharedSection=1024,3072,512 Windows=On
SubSystemType=Windows ServerDll=basesrv,1
ServerDll=winsrv:UserServerDllInitialization,3
ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off
MaxRequestThreads=16 In the ā€œSharedSectionā€, the 3rd number can be
deleted (512 above). This allows noninteractive users the same
amount of memory as interactive users.

This is also documented under the Increasing Desktop Heap section at
Increase the maximum number of concurrent policy instances - Orchestrator | Microsoft Learn

We tested this fix on ā€œoneā€ system we had available for this purpose
and found success.

Let me know if this helps.

Let me know if worked for you too.

6

Hi there,
thanks a lot for both answers.
Iā€™m going to try right now and let you know.

7

Unfortunately, it doenā€™t work for me. I tried deleting the value at all, as suggested by Rodrigo and then putting an hig value, as suggested in the MS support page (for instance 1024 or higher). It still gives the same error. Iā€™m still investigating, Iā€™ll post any news.
Thanks again

8

No, it want to work!
Any further suggestion?

9

Yes. For Windows I did this to make de V10 kernel to work:

  1. First install Mathematica 9
  2. Make WebMathematica work on 9
  3. Install version 10 and redirect to Mathematica 10 kernel in MSPConfiguration.xml file.
  4. If last step work, now you can uninstall version 9.

And then, to make Graphics work (front end dependent expressions), I need to change windows regedit.

PS: in MAC, it didnā€™t worked with JAVA 8, I needed to downgrade into java 7.

10

I have done exactly the steps you mentioned.
Now, if I change the path to 9.0 it works, when I change to 10.0 it doesnā€™t.
This is the corresponding code in MSPConfiguration.xml

General /* 
<KernelExecutable>C:\Program Files\Wolfram Research\Mathematica\10.0\MathKernel.exe</KernelExecutable>

And this is the register key value

%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,1024 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16

Where Iā€™m wrong?
Thanks again

11

I canā€™t remember what the exact memory usage of the front end is. It may be slightly greater than 1024 (I left my 3rd entry blank).

One dumb question for you: did you reboot the machine after editing the registry?

Another possible issue is the JLink native directory. You can try specifying it explicitly (make sure to edit if you have a different location:

<JLinkNativeLibraryDirectory>
C:\Program Files\Wolfram Research\Mathematica\10.0\SystemFiles\Links\JLink\SystemFiles\Libraries\Windows-x86-64
</JLinkNativeLibraryDirectory>
12

yes after each change in the registry I rebooted the machine, and I also tried to leave it blank, with the same (negative) result.
Iā€™ll try a bigger value and then also the JLink suggestion, let you know.

13

Well, finally it works!!!
I used a bigger value as third argument, exactly 20480 instead of 1024. The strange thing is that it doesnā€™t work without the third parameter. However, now it works and Iā€™m very grateful to you for the help.
:slight_smile:

14

Iā€™m very glad to hear that it works, Roberto!

Could you share the version of Windows that youā€™re using?

15

Nice!.. One more WebMathematica in V10.

16

Window 7 64bit
Mathematica 10 64bit
Mathematica 9 64bit

Iā€™ll update here any interesting news about working or not working examples.

17

Anybody get this to work for Linux? Steps would be most helpful.

18

I donā€™t have the steps, but I have success in make it work in RedHat. It was not easy to make front end to work. Front end instance is needed for make plots or file export to work.

19

Our documentation for webM installation for Linux can be found here:

Here are some things that Iā€™ve found to be quite useful:

  1. give the tomcat user a shell. That way, you can log in to your machine as that user and test things out yourself. Some possible issues that you can uncover this way are mathpass file issues and front end issues\
  2. As Rodrigo says, the FrontEnd needs to work in order for any images (plots included) to be generated. So you need to allow the tomcat user to have access to a display. Iā€™d recommend using a vncserver for this. You will need to set the FrontEndLaunch flags in our MSPConfiguration.xml file. We have examples in the documentation; my setting is ā€œ-display chadsLinux:1 -nogui -geometry 1000x500+24+24ā€.
  3. For testing purposes, try logging in to a terminal as the tomcat user and launching Mathematica in your vnc display. At the terminal prompt, type ā€˜\path\to\Mathematica -display [your machine]:[the display number]ā€™. In a vncviewer set to that display, check to see that it launched correctly. Try some evaluations in a notebook
  4. Tomcat setup is really the key issue for installation. Iā€™ve found that default installations using apt-get (Ubuntu) and yum (Red Hat) both work nicely. If you have never used tomcat previously, those are a great starting point.

If you have any other questions, please contact our tech support. Have fun!

20

Now webMathematica V3.3 has official support to Mathematica V10!

Check: http://www.wolfram.com/products/webmathematica/