https://community.wolfram.com RSS Feed for Wolfram Community showing any discussions tagged with Operating System and Network Access sorted by most replies. https://community.wolfram.com/groups/-/m/t/2118125 Are there any benchmarks yet for Mathematica 12.1 on the new (13") M1 MacBook Air or (13") M1 MacBook Pro? Murray Eisenberg 2020-11-18T20:19:23Z https://community.wolfram.com/groups/-/m/t/1097940 Since 16 may 2017, why am I not able to get the price history of US stock market tickers? Please see output below! Has anything changed? In[9]:= FinancialData["GE", {{2017, 1, 3}, {2017, 5, 15}}] Out[9]= Missing["NotAvailable"] In[10]:= FinancialData["IBM", {{2017, 1, 3}, {2017, 5, 15}}] Out[10]= Missing["NotAvailable"] sridev ramaswamy 2017-05-18T12:09:48Z https://community.wolfram.com/groups/-/m/t/1664758 Great to see Mathematica 12 released and I can't wait to try the new functionality! What is the timeline and roadmap to get Mathematica 12 to the Pi? – Thanks! Michael Byczkowski 2019-04-20T08:40:16Z https://community.wolfram.com/groups/-/m/t/868933 When working on [this question][1] dedicated to what I believe is a significant limitation/defect of the current implementation of the `"LevenbergMarquardt"` algorithm in `FindMinimum`, I found that the same code evaluates 15 - 25 times slower in version 10.4.1 as compared to version 8.0.4 on the same machine! At the bottom of this post a Notebook containing the complete setup reproducing the issue is attached. The following is a comparison of absolute timings of the same `FindMinimum` code evaluated with the two versions along with the number of steps taken by `FindMinimum`, achieved minimum and obtained new values of parameters of the model. The setup can be found in the attached Notebook. With version 8.0.4 on Windows 7 x64 I get the following: findMinimum[init, MaxIterations -> 500, WorkingPrecision -> 20, PrecisionGoal -> 3, StepMonitor :> ++steps, Method -> {"LevenbergMarquardt", "Residual" -> residualVect}] > {"00:06:35", 220, 0.00405321003823167, > {?0[1]->406.18, ?[1]->346.16, ?[2]->0.22879, ?0[2]->666.41, ?[2]->239.54, ?[3]->0.20278}} The output means that the evaluation has taken 6 min 35 sec and finished in 220 steps, obtained minimum is `0.00405321003823167`, the obtained new values of the parameters follow. And this is what I get with version 10.4.1 installed on the same machine: findMinimum[init, MaxIterations -> 500, WorkingPrecision -> 20, PrecisionGoal -> 3, StepMonitor :> ++steps, Method -> {"LevenbergMarquardt", "Residual" -> residualVect}] > {"02:37:07", 220, 0.00405321003823167, > {?0[1]->406.18, ?[1]->346.16, ?[2]->0.22879, ?0[2]->666.41, ?[2]->239.54, ?[3]->0.20278}} As you see, the only difference is that now the evaluation has taken 2 hours 37 min 7 sec! **It is more than 23 times slower than with version 8.0.4!** ---------- Do you experience the same problem? Is it possible to get `FindMinimum` of version 10.4.1 working as fast as `FindMinimum` of version 8.0.4? [1]: http://mathematica.stackexchange.com/q/116295/280 Alexey Popkov 2016-06-07T09:49:31Z https://community.wolfram.com/groups/-/m/t/1025102 I'm attaching a Notebook. The full contents are: mySampleRate = 48000; testSeries = {0, 1, 0} testAudio = Audio[{testSeries, testSeries}, SampleRate -> mySampleRate] When I evaluate the Notebook, Mathematica beeps 4 times, and it reports: > An unknown box name (ToBoxes) was sent as the BoxForm for the > expression. Check the format rules for the expression. and when I go to Help -> Why The Beep, Mathematica reports: > The kernel Local has quit (exited) during the course of an evaluation. Actually, Mathematica's behavior on this Notebook is non-deterministic. Sometimes it beeps 4 times, sometimes it beeps just once, sometimes it gives me different messages when I ask it why the beep. Anonymous User 2017-03-04T06:11:02Z https://community.wolfram.com/groups/-/m/t/2112731 Has anyone tested Mathematica 12.1 on the new Mac OS? Is it safe to upgrade to Mac OS 11 yet? Erik Mahieu 2020-11-11T16:38:00Z https://community.wolfram.com/groups/-/m/t/1479746 any problem with Mojave before I switch to it? michel 2018-09-26T02:01:06Z https://community.wolfram.com/groups/-/m/t/1667335 **Mathematica V12**: The snapshot is based on a notebook. I want to improve the calculation speed of my notebook by changing the function **Table** to **ParallelTable**. Unfortunately ParallelTable does not come to an end in appropriate time. ![enter image description here][1] Mathematica told me that 4 Kernels have been launched, but after more than 30 minutes I aborted the calculation. Why does it take so much time to create the table with several kernels? [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=52542019-04-2314_23_39-Window.png&userId=1369267 Jürgen Kanz 2019-04-23T12:37:59Z https://community.wolfram.com/groups/-/m/t/973618 I use Wolfram Programming Lab (Standard License). Normally from the Desktop version on an up-to-date Win10 PC. Last Thursday I updated to version 11.0.1 from 11.0.0. This worked with no problem. I was developing a pretty large and tricky notebook (.nb) for two weeks. It was stored within the Wolfram cloud and is still there. I worked with it last Friday after the update and saved it to the cloud. No problem. Since Saturday I cannot reopen that notebook. The ProgLab-Desktop says: *"There was a syntax error in the file being read. Do you want to open it as plain text? ... If you are able to fix the error, save the file and open it again"*. Let aside that my notebook had no syntax error when last saved on Friday evening, it's somewhat ridiculous that a program with a syntax error cannot be reopened. When I answer YES to open the file as plain text, I get another error message: *"There was a syntax error on line ... The error was: <lots of zeros>"*. Then the file opens empty as white space. No notebook, no plain text. Just one header line *"Notebook[{},..."*. When I try to open that notebook directly from the website (https://lab.wolframcloud.com/app/. Not the desktop version), it opens completely empty with no error message at all. I'm afraid, I lost that program and have no idea, why. It is still in the cloud, 1MB large, saved last Friday evening, which is correct. **Does anyone have an idea how I could regain that notebook-file?** Werner Geiger 2016-12-03T15:00:35Z https://community.wolfram.com/groups/-/m/t/1202244 I run Mathematica 11.2 in Windows 10. I have a 4k monitor (resolution 3840x2160) at work and another at home running at recommended 150% scale. The Mathematica interface looks really blurry and it is painful to read (see attached image, the window behind Mathematica is the browser window where this message was being composed. Browser text is very sharp, as is the rest of Windows. Mathematica text is blurry). My laptop (Surface book) runs at a resolution of 3000x2000 and 200% scale and Mathematica there looks even blurrier. High dpi monitors have been out for many years and Mathematica has always been blurry for me on them. Is there a way of making it give good text? Am I missing some non-obvious setting that improves this? Luis. Luis Rademacher 2017-10-13T02:23:21Z https://community.wolfram.com/groups/-/m/t/902846 Hi everyone, I just wonder whether anyone else experiences some artefacts such as a flickering desktop when using MMA 11.0.0. It is not very easy to see on this gif ![enter image description here][1] but one I rotate for example a 3D anatomical structure AnatomyPlot3D[Entity["AnatomicalStructure", "Head"]] or use certain documentation pages such as Spectrogram on my MacBook ![enter image description here][2] I get weird horizontal lines flickering all over the screen. Also part of the main menu on top of the desktop (not captured in the animation above) goes black. On MacPros (non-retina) I do not observe this issue. I can check some retina MacPros tomorrow and other hardware. ![enter image description here][3] Can anyone reproduce this? Cheers, Marco [1]: http://community.wolfram.com//c/portal/getImageAttachment?filename=flickering.gif&userId=48754 [2]: http://community.wolfram.com//c/portal/getImageAttachment?filename=ScreenShot2016-08-11at00.23.49.png&userId=48754 [3]: http://community.wolfram.com//c/portal/getImageAttachment?filename=ScreenShot2016-08-11at00.23.28.png&userId=48754 Marco Thiel 2016-08-10T23:29:27Z https://community.wolfram.com/groups/-/m/t/1310073 Following a recent upgrade from 11.2 to 11.3 I have found that Mathematica repeatedly crashes (black rather than coloured code) when using some custom functions that I have developed. It is not my Mac as similar problems occur on Macs belonging to my colleagues. Reverting to 11.2 or earlier solves the problem completely. I am still trying to isolate some trigger code examples that I can send to Wolfram support. Are others experiencing such crashes? Rudolph Kalveks 2018-03-27T12:44:55Z https://community.wolfram.com/groups/-/m/t/861654 For years now I have occasionally made use of packages. I have always found that the directions don't work for me, even though I have tried time and again to follow them closely and to try different ways of loading them. I have always had to resort to opening the package and executing it before I could use the package functions in a Mathematica notebook. I am making another try now. The first file is a package. The second file is a notebook that should load the package. It appears that the names of the symbols load into the second script, but they do not function as they should. Any ideas? The following two files should illustrate my problem. (* filename: Development.m *) BeginPackage["Development`"] v::usage = "v[z] converts x+iy to {x, y}." hello::usage = "Says hello." Begin["Private`"] hello = Print["Hello from hello"]; v[z_] := {Re @ z, Im @ z}; End[] EndPackage[] (* filename: testPackage.nb *) SetDirectory[$UserBaseDirectory <> "/Applications"] (* returns "/Users/myusername/Library/Mathematica/Applications" *) FileNames[] (* returns {Development.m} *) << Development` hello (* returns "hello", which is a failure *) v[2 + 3 I] (* returns "v[2+3I]" which is a failure *) ?"Global`*" (* returns panel with hello and v, but no variables are listed *) Gary Palmer 2016-05-25T03:19:08Z https://community.wolfram.com/groups/-/m/t/917616 HI -- The neural network package is really cool. I'm learning a lot from experimenting with it. I have noticed one odd thing I can't explain. I have a fairly simple CNN that I train on some images. It trains (although super-slowly) on my CPU, with a more or less reasonable loss getting smaller on each training round. But when I set TargetDevice = "GPU" it instantly reports 0 loss and finishes in just a couple seconds. As one clue, I had an Nvidia 970 with the latest Nvidia drivers and this didn't happen. I just upgraded to a new 1080 (partially for faster network training!), and that is when this started happening. I've attached a Notebook that demonstrates this behavior and has SystemInformation[] in it. (It does use images that aren't included, but I don't think there is anything special about them, they are just a bunch of JPEGs). I'm running Nvidia driver 372.70. If there is a different driver I should be using instead, please let me know. Thanks! David Cardinal 2016-09-01T21:46:08Z https://community.wolfram.com/groups/-/m/t/1669257 I installed gcc but Mathematica (12) cannot seem to find it. I installed gcc two ways: (i) via MinGW and (ii) CodeBlocks. A windows command line check confirms the compilers are installed. I updated my Windows Environments. GetEnvironment[] now shows Path -> ..... C:\\ Program Files (x86)\\ CodeBlocks \\ MinGW \\ bin;C:\\ MinGW \\ \ .... Still Mathematica does not find it. Executing Needs["CCompilerDriver`"] CCompilers[] CCompilers[Full] yields {} {{"Name" -> "Intel Compiler", "Compiler" -> CCompilerDriver`IntelCompiler`IntelCompiler, "CompilerInstallation" -> None, "CompilerName" -> Automatic}, {"Name" -> "Generic C Compiler", "Compiler" -> CCompilerDriver`GenericCCompiler`GenericCCompiler, "CompilerInstallation" -> None, "CompilerName" -> Automatic}} Attempting to Compile using CompilationTarget -> "C" produces the errors - CreateLibrary::nocomp: A C compiler cannot be found on your system. Please consult the documentation to learn how to set up suitable compilers. - Compile::nogen: A library could not be generated from the compiled function. I consulted the documentation, but don't get anywhere. PS: tried compiling using the new FunctionCompile but this produces much slower code than Compile without CompilationTarget -> "C" Thanks, Eric Eric Michielssen 2019-04-25T17:18:09Z https://community.wolfram.com/groups/-/m/t/1639163 My current computer, a late 2015 iMac 27” has a 4 GHz Core i7 processor, 32 GB RAM, 3 TB Fusion drive, and Radeon R9 M395X with 4 GB VRAM, Retina display. What kind of speedup with Mathematica, if any, might I expect from a new, 2019, iMac 27” with the following configuration? - 3.6 GHz Core i9 processor (8-core) - 64GB RAM - 3 TB Fusion drive - Radeon Pro Vega 48 with 8GB HBM2 memory Although this new CPU has Turbo Boost up to 5 GHz, I’m concerned that the “default” of only 3.6 GHZ, being below my current 4 GHz, might impede perfornance. Presumably the graphics rendering will be faster, right? Or do the additional cores make up for that difference? In fact, can Mathematica take advantage of those additional cores (without my explicitly coding for parallel kernels)? Murray Eisenberg 2019-03-24T16:24:32Z https://community.wolfram.com/groups/-/m/t/1349489 Hello, I recently added Mathematica on my Raspberry 3 (originally with Raspbian Lite), and got the 11.0.1. Any attempt to get the 11.2 version by a classical upgrade process sudo apt-get dist-upgrade wolfram-engine just answers that I am up-to-date... However I can read in the group lot of posts concerning 11.2 ! How can I get it ? I wouldn't like to reinstall Raspbian, as it is a special image. Thank you for your help, Yves yves papegay 2018-05-31T13:46:34Z https://community.wolfram.com/groups/-/m/t/1855244 Here are two simple but extremely convenient keyboard shortcuts that I've used for years. - This post is a favor to all my friends who type slowly (like me) - These shortcuts simply create a pair of brackets containing a template placeholder as the current new selection - Essentially, it's just a stripped-down version of the bulky (Command + Shift + K + Up/Down Arrow + Enter) completion **Favorite Shortcut #1:** Autocomplete single brackets by pressing `CommandKey + [` ![enter image description here][1] **Favorite Shortcut #2:** Autocomplete part brackets by pressing `CommandKey + ]` ![enter image description here][2] ## How to set them up ## On MacOS, first make a backup of the following file, in case you break it: FileNameJoin[{$InstallationDirectory, "SystemFiles/FrontEnd/TextResources/Macintosh/KeyEventTranslations.tr"}]; On my machine this path resolves to: *"/Applications/Mathematica.app/Contents/SystemFiles/FrontEnd/TextResources/Macintosh/KeyEventTranslations.tr"* Then, preferably in a non-Mathematica editor (e.g. Sublime), open the above file and copy-and-paste these following code into the list inside `EventTranslations`. For the first shortcut: Item[KeyEvent["[",Modifiers->{Command}],FrontEndExecute[{FrontEnd`NotebookWrite[FrontEnd`InputNotebook[],"[\[SelectionPlaceholder]]"],FrontEndToken["MovePreviousPlaceHolder"]}]] And for the second (of course making sure they are separated by a comma): Item[KeyEvent["]",Modifiers->{Command}],FrontEndExecute[{FrontEnd`NotebookWrite[FrontEnd`InputNotebook[],"\[LeftDoubleBracket]\[SelectionPlaceholder]\[RightDoubleBracket]"],FrontEndToken["MovePreviousPlaceHolder"],FrontEndToken["MovePreviousPlaceHolder"]}]] Finally, restart Mathematica, and presto, they should both be working. And to remove the shortcuts, simply remove those items or replace the .tr file with the backup. [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=own.gif&userId=900170 [2]: https://community.wolfram.com//c/portal/getImageAttachment?filename=part.gif&userId=900170 Michael Sollami 2020-01-08T20:42:08Z https://community.wolfram.com/groups/-/m/t/1034002 I have just updated Mathematica to version 11.1 (Windows 10 Home 64-bit) and the suggestions bar is not working properly. I receive this error message when I use one of the options of one arrow of the suggestions bar: ![Error using the suggestions bar][1] INTERNAL SELF-TEST ERROR: EventTracker|c|521 Click here to find out if this problem is known, and to help improve the Wolfram System by reporting it to Wolfram Research. The error happens after installing the software and running it, with the default configurations. Does anyone know what is the problem? [1]: http://community.wolfram.com//c/portal/getImageAttachment?filename=Errorsuggestionsbar.PNG&userId=410040 [2]: https://www.wolfram.com/support/error-report/?Version=11.1.0&SystemID=Windows-x86-64&LicenseID=L4968-1451&location=EventTracker-c-521 RorriNator 7 2017-03-17T23:52:17Z https://community.wolfram.com/groups/-/m/t/928500 In Mathematica 11.0.0.0 on macOS 10.12 Sierra: 1. load attached file "macOS bug.nb" 2. scroll to bottom of notebook 3. with mouse, click and drag on the graphic, attempting to rotate it Keep doing #3 until you see random graphic bits in horizontal streaks on your monitor, or your computer seizes up or kernel panics. While there is certainly a macOS bug here that allows the kernel panic, Mathematica may be writing to bad memory locations which the OS fails to trap. This repros 100% for me. I'm reporting this here in hope Staff will pass it to your QA team (my 30 days support expired long ago). hugh winkler 2016-09-23T21:27:02Z