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14 votes
Accepted

Which processor and graphics card to use for my Mathematica license

Does ParallelDo (and similar Parallel... functions benefit from more than 4 physical cores? My experience is that ParallelDo seldomly leads to any benefit. Better ...
Henrik Schumacher's user avatar
12 votes

The Wolfram Kernel must be activated for WolframScript to use it

I had the same issue. Here is my solution with the free Wolfram Engine for developers on Mac. There are two relative apps in the launchpad after the engine was installed successfully. One is Wolfram ...
bnuhero's user avatar
  • 229
11 votes
Accepted

How many cores can I use with my license?

You can evaluate $MaxLicenseProcesses and $MaxLicenseSubprocesses to find out what you are licensed to use. These values are ...
WReach's user avatar
  • 69k
10 votes

How many cores can I use with my license?

It's not a licensing issue At current, Apple's highest core-count is 12. That's probably what you have. The confusion may come from the CPU having Hyper-Threading, which is a technology that causes ...
Nat's user avatar
  • 201
10 votes

The Wolfram Kernel must be activated for WolframScript to use it

I am not sure whether they did this on purpose but to enable the walfram engine was quite implicit. (Yes WolframScript is different from Wolfram Kernel.) Following method should work cross-platform. ...
stucash's user avatar
  • 201
9 votes
Accepted

How to activate Mathematica through remote license server from command line?

I believe the easiest way is to just edit the mathpass file to contain a line that has !server, where ...
Brett Champion's user avatar
8 votes
Accepted

What is the difference between the Mathematica Licences/Subscriptions

You can have free access to Mathematica Online and the Wolfram Cloud through a Wolfram ID. Notebooks saved in the cloud under the free account expire after 60 days. The 80€ yearly removes this ...
Avery Davis's user avatar
8 votes

Which processor and graphics card to use for my Mathematica license

Does my Mathematica license support processors with 8 cores? Mathematica will run, regardless of the number of cores you have. The question is: does it take advantage of them? Does ParallelDo (and ...
Szabolcs's user avatar
  • 235k
8 votes

What happens to my student version when I drop out of university?

A correct answer to your question will require consultation with the administrator of your Mathematica license at your academic institution. Wolfram has a number of options licensing options ...
bobthechemist's user avatar
7 votes

Which processor and graphics card to use for my Mathematica license

Does Mathematica support : "NVIDIA Quadro P5000, 16 GB"? The Nvidia GPU needs to have at Compute Capability score of at least 3. You can check the score of currently supported GPUs on Nvidia's CUDA ...
Edmund's user avatar
  • 42.4k
5 votes
Accepted

Will an Ubuntu distro in place upgrade disrupt my Mathematica installation?

I've upgraded 14.04 → 16.04, then 16.04 → 18.04 without issue. In the case of genuine system reinstallations, technical support have responded within 24 hours, during which time I'm usually ...
dwa's user avatar
  • 1,939
5 votes
Accepted

What is the difference between controlling and computational kernels?

In practice, the number of "controlling kernels" means how many instances of Mathematica you can run. "Computing kernels" is how many subkernels may run when using ...
Szabolcs's user avatar
  • 235k
4 votes
Accepted

Prefer personal license over network license

This answer is based on a helpful mail from Wolfram support. Mathematica stores the License information in a text file called mathpass. In this file, each line ...
A.Z.'s user avatar
  • 580
3 votes

Home user perpetual licence

The issue was solved by Wolfram Customer Support: This was a temporary activation while your order was processed. I have now fixed this and removed the expiration date. You can now activate your ...
Paul Floyd's user avatar
3 votes

Question on Global System variables

$ProcessorCount tells you how many CPU cores your machine has. It characterizes the hardware and is unrelated to licenses. This is how many subkernels are launched ...
Szabolcs's user avatar
  • 235k
3 votes

What happens to my student version when I drop out of university?

I suggest you go with the Home version, so you can pursue your personal interests.The Home version costs a bit more (about 300 dollars), but has no time limits and when you upgrade the price is around ...
magma's user avatar
  • 5,290
2 votes

License issue when USB-LAN stick is connected.

Easiest way is to ask for another license password directly from Wolfram. Otherwise you might try to change the MAC address of the USB-LAN adapter to exactly the same one of the wifi card. Of course ...
vladimir19's user avatar
2 votes
Accepted

Can I distribute Wolfram.NETLink.dll with an open-source project?

To follow up on this: WRI did respond to me and had no issue with redistribution of the MathLink dll as a NuGet package, and are planning on creating their own package in the future. For now, I'm ...
Joe Iaquinto's user avatar
2 votes

Activation problem: "Unable to connect to the internet"

Solution turns out to be: rm /Library/Mathematica and ~/Library/Mathematica completely. Then retry activation. This is not an internet connection problem, it is a bug with refreshing SSO and ...
edgeloss's user avatar
  • 311
1 vote
Accepted

MOSEK license error

This issue has been resolved in Mathematica 13.3
Dotman's user avatar
  • 456
1 vote

Wolfram script does not work due to memory shortage and/or "license error" (FacialFeatures function)

With your code you force the WolframKernel to keep all the files of one directory in memory due to the "FacialFeatures[Import/@pathImgs, features]". This can lead to huge amounts of memory ...
rlj's user avatar
  • 135
1 vote

Check if the license is available otherwise quit

I have written something like this as a powershell script on windows. It uses an extra process and redirects input and output, reads output and checks it for the missing-license message and if such a ...
Albert Retey's user avatar
  • 23.6k
1 vote

WolframScript fails to activate

Download the free engine and install it. On Unix: $ sudo ./Wolfram*sh Get your free license, sign in and accept the terms of use. In the command line: ...
Erwann's user avatar
  • 111
1 vote

The Wolfram Kernel must be activated for WolframScript to use it

I have a similar problem as described here by someone else. I install the Wolfram Engine on my Mac and succeed the activation according to the support on the Wolfram website. The Wolfram Engine is ...
shen ke's user avatar
  • 111
1 vote

Implementing a 100% Mathematica http server

Yes (and using pure Mathematica or WolframEngine) https://jerryi.github.io/tinyweb-mathematica/
Kirill Vasin's user avatar
  • 1,245

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