On Tue, Apr 23, 2024 at 10:29 PM S Benton <
brent...@gmail.com> wrote:
> We are not using the app. She downloaded SageMath-10.3_arm64.dmg from github., double clicked the executable and followed the installation instructions. To launch, she clicks the SageMath-10-3 icon along the bottom of her mac. This gives her the option to open Jupyter Notebook, which she does, using the SageMath kernel.
OK. What macOS version do you run?
Do you have all the updates installed ? (you should)
>
> She has a 3 year old mac and I'm wondering if it just doesn't have the processing power it needs to do these more intensive mathematical computations. (plus she probably has other stuff up on her computer) So when Jupyter Lab konks out, she is unable to restart it. Even if she reboots her computer, when she tries to relaunch from the SageMath icon, she gets the Local host Error connection refused. She looks in Activity Monitor and says she has killed all of the python processes, but still cannot launch SageMath.
it's most probably a stale "lock" file, just a file created by a
process to indicate that it's running; such a file is cleaned on a
normal exit,
but not in case of a crash.
I must say I don't know much about this app, I'll cc to one of the authors.
Marc, could you have a look?
The app has a dedicated issue tracker:
https://github.com/3-manifolds/Sage_macOS/issues
it might be better to report there.
>
> The last time this happened we removed and then reinstalled SageMath. But that's a tough way to keep things moving. I'm wondering if when Jupyter Lab dies, if there are files that live on and make it so that she cannot relaunch. We have not been able to find, or just lack the skills to find, where any of these files might be located. I tried to run "jupyter" commands from the terminal, but they come back as unknown and searching through "finder" on the mac is not getting us anywhere.
>
> Short of buying a new computer or continuing to reinstall SageMath, I'm wondering if there is a simpler of way of getting things up and running again for her.
>
Certainly a 3 y.o. machine is more than enough to run Sage, it's some
kind of software glitch, I suppose.
I'm running Sage (and writing this email from a 7 y.o. machine just fine).
A quick way to run Sage is to use
https://cocalc.com
(you can upload Jupyter notebooks there to run; you can even use it for free,
but to make it run better you'd need to pay something like $7 per month)
There are several other ways to run Sage locally on your mac,
but let's try things in turn first.
Hope this helps,
Dima
> Thank you so much for responding. It is deeply appreciated.
>
>
>
> On Tuesday, April 23, 2024 at 4:05:17 PM UTC-4 Dima Pasechnik wrote:
>>
>> Hi,
>>
>> please tell us more about the Sage version, and how you installed it, and how you launch the notebook.
>>
>> Do you use the Sagemath macOS app?
>>
>>
>> Dima
>>
>>
>> On 23 April 2024 20:05:12 BST, S Benton <
brent...@gmail.com> wrote:
>>>
>>> Hi - at my wit's end here - my daughter is trying to use Sage Math Jupyter Notebook for her college coursework. She has had problems where if Notebook crashes, she is unable to relaunch it - she gets a "connection refused" error and it mentions Local Host 8888. Last time, we reinstalled everything and she was able to get up and running again. However, this keeps happening.
>>>
>>> I am wondering if - when Notebook crashes - if there are still processes running out there that are preventing her from relaunching a new instance of Notebook. She is on a mac, and I'm trying to find the commands or directories where these processes or files might stored so that I can remove them.
>>>
>>> I am not able to use any of the "Jupyter" commands from the mac command line to see what is running. Does anyone have any help they can offer on why this might be happening and how i can get her up and running again?
>>>
>>> Many thanks
>
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