Questions tagged [system-performance]

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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 ...
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3 votes
6 answers
411 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 ...
9 votes
1 answer
334 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 ...
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28 votes
34 answers
4k 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 ...
10 votes
1 answer
737 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 ...
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  • 1,159
0 votes
1 answer
591 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 ...
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14 votes
0 answers
335 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 ...
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4 votes
0 answers
131 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: ...
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0 votes
0 answers
92 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 ...
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1 vote
0 answers
210 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 ...
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  • 165
2 votes
0 answers
225 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 ...
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4 votes
1 answer
404 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 ...
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  • 1,578
0 votes
0 answers
417 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 ...
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2 votes
0 answers
528 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:...
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6 votes
1 answer
1k 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 ...
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0 votes
0 answers
87 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, ...
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  • 3,150
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 ...
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12 votes
2 answers
286 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: ...
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1 vote
0 answers
33 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 ...
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3 votes
2 answers
174 views

Why is TensorExpand so slow for vector operations?

I would like to expand the following tensor expression: ...
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2 votes
1 answer
65 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)....
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5 votes
1 answer
164 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 ...
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  • 1,259
0 votes
1 answer
334 views

How to permanently modify the $Path in Mathematica [duplicate]

I was trying to add permanently a path inside $Path. "/Users/gkdgoutam/Softwares/HEP_Softwares/MT-1.0" Following $Path manual I did the following ...
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  • 973
6 votes
1 answer
172 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. ...
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2 votes
2 answers
290 views

Speed up Probability

I have a set of inequalities: ...
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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 ...
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3 votes
0 answers
308 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 ...
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1 vote
0 answers
182 views

How do I interpret these Benchmark results? [closed]

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

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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3 votes
0 answers
115 views

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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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® ...
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6 votes
2 answers
1k views

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 ...
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  • 101
4 votes
1 answer
898 views

Settings to improve graphics rendering on Mathematica 11.1

On my machine ...
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3 votes
0 answers
70 views

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 ...
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6 votes
1 answer
167 views

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 ...
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  • 3,002
7 votes
1 answer
370 views

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 ...
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  • 108k
1 vote
0 answers
102 views

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 ...
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33 votes
1 answer
688 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 ...
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  • 224k
3 votes
1 answer
650 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 ...
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  • 3,150
3 votes
2 answers
341 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 ...
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  • 175
7 votes
1 answer
108 views

Front-End hangs up for a while when I type quotation mark " in front of an image

A support case with the identification [CASE:3747200] was created Thank you for taking the time to send in this report. I understand that when you put a quotation mark in front of an inline image,...
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  • 5,559
2 votes
2 answers
137 views

Why is the execution time getting smaller and smaller every time?

Why is the execution time to compute the value of sum getting smaller and smaller every time in the following code? And how to get consistency? Thank you very much for your help. ...
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2 votes
0 answers
221 views

Benchmark player pro vs Mathematica

I have a new Computer (Thinkstation: Intel Xeon E5-2630 v3 (2.4 GHz x 16) and want to compare its Performance against two others (Dell: Xeon X5560 2.9GHz x 8, Tri: i7-4790 3.6Ghz x 8). On first two ...
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  • 1,332
7 votes
1 answer
183 views

IntegerReverse much slower than simple alternative

Answered in comments. I find the built-in function IntegerReverse[n] is roughly an order of magnitude slower than the simple alternative ...
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  • 4,831
7 votes
0 answers
257 views

Mathematica constant CPU usage affecting battery life

I noticed that both the Mathematica front end and kernel are using the CPU constantly. In the end this hurts battery life and is particularly inconvenient when I forget to bring the charger to work .....
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  • 224k
3 votes
0 answers
149 views

High CPU load for dynamic classification

I encountered some issues with extremely high CPU load when I tried to classify live images (using Dynamic and CurrentImage[]). ...
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  • 8,259
0 votes
0 answers
42 views

What criteria should I follow to choose a Windows version, to run Mathematica 10.0 or higher?

I must install Mathematica 10.4 on a PC, running Windows, specially intended for this job (basically, no other software will be used there). I'm quite free about choosing the OS (Windows 7, 8, 10, ...
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19 votes
4 answers
2k views

Speedup matrix number multiplication

Consider this simple matrix number multiplication: ...
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5 votes
2 answers
237 views

Raspberry Pi Temperature and Performance

I just got a raspberry pi 3 and want to get a rough idea of the max temp I might reach while doing intensive calculations. What would you suggest I calculate in mathematica to get the pi hot? ...
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3 votes
0 answers
84 views

What is the good source to study advanced custom coding in Mathematica [duplicate]

My question is, probably, too general ... I deal a lot with complicated symbolic evaluations, integrations, plotting. I have troubles with optimizing my codes. They come out way too slow. Google and ...
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