Questions tagged [system-performance]
The system-performance tag has no usage guidance.
76
questions
0
votes
1answer
50 views
Differences in Mathematica's behaviour with identical functions
I have three functions whose identity was verified, but WM doesn't behave itself equally with them.
The code is:
...
19
votes
24answers
1k 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
1answer
580 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 ...
0
votes
1answer
349 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 ...
13
votes
0answers
289 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 ...
4
votes
0answers
85 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
0answers
91 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
0answers
146 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
0answers
159 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 ...
3
votes
1answer
246 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
0answers
291 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 ...
2
votes
0answers
458 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:...
5
votes
1answer
891 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
0answers
85 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
1answer
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 ...
12
votes
2answers
261 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:
...
1
vote
0answers
27 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 ...
3
votes
2answers
163 views
Why is TensorExpand so slow for vector operations?
I would like to expand the following tensor expression:
...
2
votes
1answer
61 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)....
4
votes
1answer
133 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 ...
0
votes
1answer
240 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
...
6
votes
1answer
166 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
2answers
284 views
2
votes
0answers
864 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
0answers
266 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 ...
1
vote
0answers
169 views
3
votes
1answer
52 views
Question on Global System variables
What are the maximum values for $MaxLicenseProcesses and $MaxLicenseSubprocesses? Can they be infinite or are there specific ...
3
votes
0answers
112 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 ...
10
votes
3answers
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® ...
6
votes
2answers
943 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 ...
4
votes
1answer
803 views
3
votes
0answers
68 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 ...
6
votes
1answer
148 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 ...
7
votes
1answer
345 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 ...
1
vote
0answers
96 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 ...
33
votes
1answer
655 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 ...
3
votes
1answer
578 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
2answers
292 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 ...
7
votes
1answer
104 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,...
2
votes
2answers
134 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.
...
2
votes
0answers
216 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 ...
7
votes
1answer
165 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 ...
7
votes
0answers
239 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 .....
3
votes
0answers
143 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[]). ...
0
votes
0answers
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, ...
18
votes
4answers
1k views
5
votes
2answers
229 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?
...
3
votes
0answers
82 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 ...
3
votes
0answers
81 views
Possible reduced GUI performance in 10.4
I have observed significantly reduced performance in GUI in Mathematica v10.4. This is especially visible in autocomplete feature delays. This is very evident when I turn some power saving features ...
5
votes
1answer
724 views
Mathematica 10.X benchmark report for high-end surface pro 4/surface book?
Recently, I am seriously considering purchasing the high-end surface device (with intel i7 and maximal RAM). Mathematica will be one of the main applications. Since it is not a full or traditional ...
