Questions tagged [system-performance]
The system-performance tag has no usage guidance.
90
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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[],
...
- 135
2
votes
2
answers
123
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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 ...
- 669
2
votes
0
answers
43
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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....
- 21
1
vote
0
answers
66
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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
...
- 411
3
votes
0
answers
87
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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 ...
- 3,986
1
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0
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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 ...
1
vote
1
answer
62
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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 ...
- 5,231
1
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2
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152
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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 ...
- 65
3
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3
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89
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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 ...
- 62.1k
3
votes
0
answers
277
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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.
...
- 16.8k
4
votes
0
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129
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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 ...
- 17.3k
1
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0
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122
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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 ...
- 487
1
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0
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127
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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 ...
- 31
17
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26
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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 ...
9
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1
answer
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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 ...
- 1,868
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34
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8k
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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 ...
11
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1
answer
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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 ...
- 1,309
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1
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1k
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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 ...
- 323
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0
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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 ...
- 1,627
4
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0
answers
223
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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:
...
- 507
0
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0
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102
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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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548
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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 ...
- 165
2
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0
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313
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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 ...
- 1,658
4
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1
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836
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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 ...
- 1,658
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0
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628
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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 ...
- 2,174
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0
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644
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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:...
- 2,335
7
votes
1
answer
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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 ...
- 12.1k
0
votes
0
answers
103
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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, ...
- 4,006
8
votes
1
answer
1k
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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 ...
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2
answers
331
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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:
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- 113k
1
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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 ...
- 1,131
3
votes
2
answers
245
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Why is TensorExpand so slow for vector operations?
I would like to expand the following tensor expression:
...
- 1,131
2
votes
1
answer
76
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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)....
- 3,116
5
votes
1
answer
255
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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 ...
- 1,278
0
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1
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598
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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
...
- 1,897
6
votes
1
answer
196
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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.
...
- 16.6k
2
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2
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301
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2
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0
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1k
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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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0
answers
409
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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 ...
- 4,738
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200
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3
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1
answer
73
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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 ...
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0
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121
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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 ...
- 31
10
votes
3
answers
3k
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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® ...
- 11.8k
6
votes
2
answers
1k
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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 ...
- 101
4
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1
answer
1k
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3
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0
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72
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More efficient ListLinePlots? [duplicate]
I'm generating grids of ListLinePlot objects with hundred thousands of points each, and my notebook gets very slow very fast. IE, I have a hard time scrolling once ...
- 8,041
6
votes
1
answer
208
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Should I rasterize plots to keep my notebook file small?
I often use Mathematica notebooks as an informal "lab notebook", plotting recent results in various tabs and such. I've noticed that these files can tend to get really large; for example, my Windows ...
- 3,102
7
votes
1
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Extreme slow down of Manipulate in version 11.1.1 when adding Frame->True
Assigned CASE:3886109
I noticed something very strange in
11.1.1 for Microsoft Windows (64-bit) (April 18, 2017)
When I make simple ...
- 149k
1
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0
answers
119
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Front end is very slow to render after alt-tab
I've installed Mathematica 11.1 on my Arch Linux system, but the GUI is very slow to render in after alt-tabbing away (and is just sluggish in general). Here's a gif which shows what I mean.
I'd be ...
- 240
34
votes
1
answer
784
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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 ...
- 236k