Questions tagged [system-performance]
The system-performance tag has no usage guidance.
86
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Speed up scrolling with images in notebook
I like to have images in between code and text cells. Whether they are pasted (in a default Input cell) or generated (in an Output cell), they slow down the front end considerably. When part of an ...
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11
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Benchmarking Mathematica 13 across machines
Many people consider the performance of MMA when choosing their computers. I feel we need some up-to-date benchmark results across hardware and systems for the major version 13, which will help a lot ...
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The performance of AceFEM in Intel Processor VS. AMD Processor
I am going to buy a new powerful desktop that I will use to run finite element simulations using AceFEM. I found out that the new AMD Ryzen 9 3950X obtained more points in the CPU Passmark benchmark ...
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Mathematica does not recognize all CPU kernels/cores [closed]
I am using Ubuntu 22 and Mathematica 13. According to the description of my laptop I should have four CPU cores, as seen in the following screenshot:
However, Mathematica only seems to recognize two ...
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Creating a medium size graph with EdgeWeight is super slow
I have discovered that creating medium-size (10k vertices, 40k edges) edge-weighted graphs takes impossibly long.
My motivation is solving AdventOfCode 2021 day 15, which can be formulated as a ...
- 5,041
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How to get all necklaces without the full permutations' set?
There are previous posts, such as Delete duplicates from list of lists as if on a necklace,
that give a way to find all necklaces from a set of lists. The methods presented there work well for a small ...
29
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34
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Benchmarking with Mathematica v.12 for up to date comparison across different machines
I am planning to purchase a new computer especially to use for Mathematica programming purposes. Currently, I have MMA v.11. Could someone with Mathematica v.12 run the following benchmarking and ...
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3
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How to control the Image Assistant Toolbar?
(Cross-posted on the Wolfram Community.)
When we select an Image in the FrontEnd, the Image Assistant Toolbar appears attached under it:
How can we temporarily ...
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125
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Reduce Mathematica's disk usage
Having had Mathematica installed for a number of years and having upgraded regularly, I find that the disk space used by .Mathematica has grown to almost 7 GB.
...
- 16k
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1
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458
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How to permanently modify the $Path in Mathematica [duplicate]
I was trying to add permanently a path inside $Path.
"/Users/Softwares/HEP_Softwares/MT-1.0"
Following $Path manual I did the following
...
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Saving with many cells freezes in V13.1 and freezing time depends on the location of file
Update
Ok, I got it with reproducible example. It turns out size is not the issue, number of cells is.
First, let us programmatically generates a lot cells according to this post. Basically, 3000 ...
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High performance fullscreen visualization of image sequence
What is the fastest way you can come up with to display an image sequence in fullscreen where each image in the sequence must be shown? Here is my attempt. Let's create a 1920x1080 image as this is a ...
- 449
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Why Mathematica don't set \$RecursionLimit and \$IterationLimit very big by default? [closed]
For my current program in Mathematica, sometimes I will encounter an error regarding \$IterationLimit and \$RecursionLimit. So I always set these two numbers to very large at the starting of every ...
- 61k
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3
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Performance regression for Fold?
I noticed an over 10x performance drop on Mathematica v9.0.1 (as Oleksandr R. commented, also v8) compared with v7.01 for this code:
...
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6
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Mathematica 10 'Formatting Notebook Contents'
Mathematica 10 freezes while 'Formatting notebook contents'. This happens already during the startup of Mathematica and it takes a long time for Mathematica to recover. It can also happen when I am ...
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Why is MemoryInUse[] Very Different from the Actual Amount of Memory Being Used?
I call the MemoryInUse[] function, and it outputs about 256 Megabytes.
MemoryInUse[]
(*255979528*)
However, my activity ...
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What are the key reasons for the performance improvements in 12.3?
The built in benchmark test on my stationary workstation shows an improvement from 2.82 to 5.99, all other hardware and operating systems settings the same.
This looks very good. My question is: What ...
- 229k
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How to antialias Plot3D graphics?
How can I turn on antialiasing on 3D graphics from Plot3D[]? 2D graphics are antialiased for me but 3D graphics are very aliased and ugly looking, especially the ...
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3
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Mathematica vs. Python - how does Mathematica compare to Python's scientific computing suite?
Python's family of packages for scientific computing has matured rapidly. I can pretty much replicate all of Mathematica's functionalities, but with production level and open-source code using the ...
- 3,804
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741
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Best laptop specs for a better and faster numerical simulations [closed]
Hope all is well! I am planning to buy a laptop (Windows) and looking for your help to decide the specs that we need to speed up the numerical simulations using Mathematica. The Mathemtica code I used ...
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Why is listing files on a network share so slow? / How to speed it up?
I'm using I need to load data in some files on a windows network share (samba), mounted on OSX. When listing the relevant directory in a shell, the performance is acceptable:
...
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How to speed up Timing[4^(10^10)]
I have an old computer with a quad-core AMD Phenom II processor (3Ghz). When I run Timing[4^(10^10)]the computer takes hours to evaluate the expression. I'm not ...
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Limit the amount of RAM Mathematica can use and still get sensible results? [closed]
The question is very similar to this one, however the solution proposed there doesn't satisfy me because I don't want Mathematica to abort the evalution, but simply to do it with less RAM.
Basically ...
- 107k
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Any possible explanations for repeated "out-of-the-blue" crashing of Mathematica 12? [closed]
This is a further development in this "saga".
After originally asking the question below (which I will delimit with dashes) a number of months ago, I did get a reponse from Wolfram Technical Support:...
- 2,315
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How to efficiently solve a large system of equations
This question is a follow-up of my last question.
Summary
The user Henrik Schumacher gave an excellent answer about how to store equations efficiently and solve the associated homogeneous system by ...
- 1,598
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609
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Long Execution Time of Reduce
I have a set of linear homogeneous equations with 8580 variables. I want to estimate the time Mathematica takes to solve the system, by solving smaller sets of ...
CommunityBot
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Mathematica suddenly became extremly slow (Windows 10)
I restarted my computer, and Mathematica became eeeextremly slow. It takes like 5mn to make calculations it used to do in 3seconds.
I have seen Suddenly mathematica is very slow when screen is ...
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Limit the amount of RAM Mathematica may access?
Trying to solve a differential equation numerically, I noticed that Mathematica used up all RAM to the extent that my operating system (Windows 10) lost responsiveness and hung up.
As a result I had ...
- 127k
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GUI performance on OS X Mojave
I am running Mathematica 11.3 on OS X Mojave and experiencing extremely slow GUI performance. Scrolling is worse than controlling Mathematica in Linux KDE over teamviewer half around the world away, ...
- 3,609
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3.4 GHz Ryzen 5 slower to diagonalise large matrix than Intel i5-6300U 2.4 GHz
Sorry that this is quite a specific question but I need to diagonalise large matrices for the problem I'm trying to solve and can't for the life of me work out what's going on:
I was expecting that ...
- 102k
13
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2
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Listable built-in functions - Why are they so fast on numerical vectors?
Consider the following small example, where I calculate Exp on a large vector by employing the listability which many mathematical built-in functions have:
...
- 112k
3
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Slow front end Mathematica 11.0.1 on linux
Is anyone also experiencing rather slow front end behaviour in Mathematica 11.0.1 on Linux (Deb 8.7 + kde)? I am experiencing quite slower saving times of notebooks themselves and slower response ...
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Why is TensorExpand so slow for vector operations?
I would like to expand the following tensor expression:
...
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keep variables in the correct position when TensorExpand
I would like to expand a tensor expression of 3-d vectors. However, the code runs really slow, the problem is asked here:
Why is TensorExpand so slow for vector operations?
However, I found that by ...
- 1,121
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Optimisation of a loop
I've opened a question here, which was answered. The code works totally fine for a small set of data. However, for a large set and over many iterations, it will take a long time (in order of 24 hours)....
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Is this 30% slowdown in Mathematica 10 due to DownValues lookup time?
Running several numerical self-programmed packages I realized already some time ago that Mathematica 10 needed between 20 and 40% more time.
I did already report this of course with a simple example ...
CommunityBot
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34
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1
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Benchmarking: unexplained switching between high and low performance
tl;dr I am trying to accurately benchmark some vectorized operations, and compare them between systems. But benchmarking is hard to do well, and I am getting inconsistent results: performance is ...
CommunityBot
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1
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Hanging in the front end
I'm writing some code and it's getting quite long, and I seem to get a lot of hanging in the front end when I'm trying to move the cursor to certain places with the mouse. I'm starting to think that ...
- 61k
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Code in separate cells causes a kernel crash [duplicate]
Bug introduced in 11.2
If I put the following code in separate cells the Kernel crashes (dies). If I put them together in the same cell it works fine. Version 11.3.0 for Windows.
...
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296
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2
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0
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Does Mathematica Rely More on CPU or GPU
I am surprised no one asked this before. I am getting a new laptop and I will be mainly using Mathematica more than anything else on it.
When selecting a laptop, should I put more emphasis on CPU or ...
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351
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When does a good graphics card help in Mathematica
I've got an NVIDIA GTX 960 and 32G RAM on my desktop. I was just wondering if it really does any benifit to the usage of Mathematica compared with some integrated card in high-end intel chips.
I ...
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Which processor and graphics card to use for my Mathematica license
Does my Mathematica license support processors with 8 cores?
I have to choose between one of the following processors:
Intel® Xeon® E5-1630 v4 Prozessor (4 cores, 3,7 GHz, 4,0 GHz Turbo)
Intel® ...
- 102k
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3
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1
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Question on Global System variables
What are the maximum values for $MaxLicenseProcesses and $MaxLicenseSubprocesses? Can they be infinite or are there specific ...
- 231k
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Major slowdown when using a ColorFunction with more than one named scheme
Bug introduced in V10.1 or earlier and persists through 11.2
Earlier Kuba noted a major slowdown with code Simon Woods posted. Here is a simplified example.
First a color function using two ...
Kuba♦
- 135k
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Why a simple Plot on Raspberry Pi 3 with Mathematica takes 20 seconds?
I'm with ssh -X raspberrypi logged in. So $DISPLAY points to a X-Server.
I use a very simple script file ...
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How to speed up nested loop? I have used Do loop and Table as well
I am trying to calculate mean for example if list is {1,2,3,4,5}
then i have to calculate mean of ...
- 102k
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1
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72
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ListPlot: Plotting large data fast
Mathematica produces fantastic-looking graphics, but it can be slow on large data sets. Here is an example for a (random) time series:
...
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