The Kernel is the back-end application thread that does the actual evaluation of all non-graphical expressions. It can be accessed directly through the console but is more commonly working behind the scenes to power the Notebook Interface. Multiple Kernels may be run for parallel computation.

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Is there a convenient way to localize all variables in a new notebook? [duplicate]

I often digress to test some others’ code when working on my own problems. Usually, I have to check if there are conflict variables. Of course, it is not a wise way. By contrast, all the variables in ...
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121 views

Remote kernel shuts down after several seconds

I have Mathematica 9 installed on two Windows Server 2008 R2 machines. Now i want to try using one of them as a frontend with local kernels and the other one for remote kernels. OpenSSH 6.5 for ...
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47 views

Clean webMathematica Kernel

On my webMathematica server, certain input values are being saved between page loads on different computers. I assume this is because the kernel is not clearing the values after it finishes loading a ...
2
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229 views

Runaway MathKernel!

I was running a simulation and everything went south (my fault, stupid coding error). So I quit the kernel. Everything was running very slowly, as if it were doing some kind of large calculation. ...
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130 views

Why FrontEnd`KernelExecute doesn't work in KeyEventTranslations.tr?

Which commands can you put in KeyEventTranslations.tr ? There is an extensive list of FrontEndTokens, but what else can you use? Why something like this doesn't ...
2
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1answer
180 views

MathKernel and MathLM interaction

If one restarts MathLM on a Linux server, will that restart mathkernel as well? In other words, will restarting MathLM affect the current jobs running that use MathKernels? Thanks.
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1answer
138 views

FindMaximum inconsistency

The code below seems to work for n<11. But for n=11, and above, it outputs newa then just outputs "beep" sound. WhyTheBeep says "The kernel Local has quit ...
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1answer
189 views

Opening multiple kernels in command line for batch operation

I have been searching around for a while, and perhaps I'm just using the wrong terminology, but I haven't found a way to do this. I have a mathematica notebook converted and saved as nobel_test.m, ...
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2answers
187 views

Can I run calculations on an external ssh server that doesn't have Mathematica installed? [closed]

I am currently running some rather compilex Mathematica calculations on my laptop and sometimes run into an out-of-memory errors. However, I have access to some larger simulation servers via ssh, but ...
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1answer
168 views

Export notebook file without launching front-end

I am using a Mathematica script to programmatically generate a Mathematica notebook. The script generates a Notebook expression and then uses ...
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0answers
261 views

Threads vs Cores: How many kernels need to launch in parallel Mathematica?

I have a dual-core intel machine. I would like to test how many parallel local kernels should be launch to get the optimized performance. Knowing that the HyperThreading technology of Intel could run ...
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0answers
299 views

Configuring Remote Kernel via terminal in Linux

There's a server at work, which I would like to use as a remote kernel. I have access to it via terminal (server is running Red Hat, my client Windows 7). I don't know if the kernel is set up or not, ...
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1answer
88 views

How to change the MATHEMATICA_USERBASE directory

I’ve found, from reading the help on MathKernel in the help system and in a number of questions here, that to make that change in Windows at least one apparently needs to enter “MathKernel … options” ...
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1answer
39 views

Launching external program in background process with ParallelSubmit

I work on the implementation of an image processing pipeline in Mathematica in which I also would like to use external programs to do certain processing steps. As an example I have macros for the ...
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0answers
44 views

Main Kernel in Mathematica

I would like to copy some parameter from the main Kernel of Mathematica to the parallel kernels available. So I'm running now a command like: ...
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28 views

Use remote kernel on debian from win8

I spend almost two week to figure out how mma could use a remote kernel. The following is my results: The basic environment is: mma9.0.1 on win8 as my host (local machine); mma9.0.1 on Deiban 7 as a ...
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22 views

KernelObject::rdead on local kernels

I'm trying to parallelize some tasks which involve fetching data from a URL and processing it. This is the code: ...
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0answers
25 views

Multiple scripts run using same kernel

I have an external program that calls Mathematica scripts upon certain events. Each script requires a large Mathematica library to load (takes a while). Is there some way to run an initial script ...
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0answers
16 views

Restoring a Mathematica session without notebook interface [duplicate]

It happens all the time that I close my Mathematica session and later I regret that I have done so, because there are many things that I would like to check. I would like to know if there is a way to ...
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0answers
60 views

Save open Mathematica Notebook from command line or second Notebook to avoid data loss

I was executing a long Mathematica Notebook over night. The Mathematica instance is running on a Linux workstation (in a vnc server session to be precise). Now I cannot access this session anymore, ...
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92 views

Keyboard issues with Mathematica 9.0.1 for Linux

After working for a while with Manipulate function and increasing the number of variables to be manipulated, keyboard stops working properly in the Notebook. It ...
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65 views

kernel shuts down during listplot [duplicate]

In at least the following situations, I have experienced that the kernel has shut down during evaluation. The thing is that there is no message at all when it shuts down. ...
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0answers
46 views

CreateDocument using a specific Evaluator (Kernel)

I was trying to build a button to create a new document that contained a dynamicaly changing table. In the parent notebook i am using another kernel - not the usual "Local". The problem is that in the ...
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77 views

running Mathematica installed in Windows, from Linux

Both the operating systems are installed side by side on my computer. The Windows hard drive mounts as an external hard drive on running Linux and I can access all the Windows files, as you'd know. ...
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142 views

Licence and number of controlling kernels

I'm trying to understand the differences between controlling kernels and subkernels. I created 3 local kernels (kernel configuration options > add), each using a maximum of 8 local subkernels. ...
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1answer
138 views

How to use all the kernels efficiently

We build a project with Java and Mathematica technologies. For this project we have written a bunch of functions in Mathematica and integrated some functions in one ...