Skip to main content

Questions tagged [system-performance]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
8 votes
1 answer
185 views

Poor performance in ListPlot[] Mathematica 14

Recently I started working with Mathematica 14 and I notice a new dynamical feature in the functions Plot[] and ListPlot[], ...
2 votes
2 answers
122 views

Does the kernel attempt to evaluate the output of RandomReal?

I am trying to get my head around the evaluation process. One of the general ideas is that whenever an expression is replaced by another the evaluation restarts in the new expression. I can't imagine ...
17 votes
26 answers
2k views

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 ...
2 votes
0 answers
43 views

How can I cap calculation speed?

Sorry if I wasn't able to find an existing answer! I'm trying out Mathematica, and was running through some sample problems at night. My roommate is sleeping, and my computer fan can get decently loud....
1 vote
0 answers
66 views

Complicated expressions involving hypergeometric functions

This is in relation to my last post which was unanswered but I think I may have found somewhat of a workaround. I have the following preliminary definitions ...
3 votes
0 answers
84 views

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 ...
11 votes
1 answer
1k views

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 ...
1 vote
0 answers
235 views

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 ...
1 vote
1 answer
61 views

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 ...
1 vote
2 answers
140 views

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 ...
30 votes
34 answers
8k views

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 ...
3 votes
3 answers
86 views

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 ...
3 votes
0 answers
253 views

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. ...
0 votes
1 answer
590 views

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 ...
4 votes
0 answers
129 views

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 ...
1 vote
0 answers
120 views

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 ...
1 vote
0 answers
120 views

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 ...
26 votes
3 answers
631 views

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: ...
40 votes
6 answers
7k views

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 ...
14 votes
0 answers
386 views

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 ...
9 votes
1 answer
367 views

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 ...
3 votes
2 answers
449 views

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 ...
64 votes
3 answers
43k views

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 ...
0 votes
1 answer
1k views

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 ...
4 votes
0 answers
223 views

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: ...
0 votes
0 answers
102 views

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 ...
1 vote
0 answers
524 views

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 ...
2 votes
0 answers
642 views

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 votes
0 answers
312 views

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 ...
4 votes
1 answer
812 views

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 ...
0 votes
0 answers
623 views

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 ...
7 votes
1 answer
2k views

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 ...
0 votes
0 answers
102 views

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, ...
8 votes
1 answer
1k views

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 ...
13 votes
2 answers
330 views

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: ...
3 votes
1 answer
773 views

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 ...
3 votes
2 answers
240 views

Why is TensorExpand so slow for vector operations?

I would like to expand the following tensor expression: ...
1 vote
0 answers
44 views

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 ...
2 votes
1 answer
75 views

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)....
53 votes
2 answers
2k views

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 ...
34 votes
1 answer
782 views

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 ...
5 votes
1 answer
251 views

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 ...
6 votes
1 answer
196 views

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. ...
2 votes
2 answers
300 views

Speed up Probability

I have a set of inequalities: ...
2 votes
0 answers
1k views

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 ...
3 votes
0 answers
406 views

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 ...
10 votes
3 answers
3k views

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® ...
1 vote
0 answers
199 views

How do I interpret these Benchmark results? [closed]

How can I interpret this result?
3 votes
1 answer
73 views

Question on Global System variables

What are the maximum values for $MaxLicenseProcesses and $MaxLicenseSubprocesses? Can they be infinite or are there specific ...
16 votes
1 answer
301 views

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 ...