Warning : The Lab instance on CINECA will be unavailable today from 16:00 CEST (my timezone) for up to 15 minutes for maintenance. The JSC instance will remain operational during this period.


Changes for page Troubleshooting

Last modified by kindler on 2025/05/14 16:54
From version 35.1
edited by kindler
on 2021/12/15 14:58
Change comment: Uploaded new attachment "1639576718553-361.png", version {1}
To version 33.1
edited by kindler
on 2021/12/15 14:55
Change comment: Uploaded new attachment "1639576524483-695.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -8,7 +8,7 @@
8 8  
9 9  === No example notebooks in the Jupyter notebook environment ("Lab") ===
10 10  
11 -When starting the Jupyter notebook environment for the first time it takes about a minute (without visible "in progress" indication) until the example files appear in the file-chooser. Until then the list is just empty. So the fix here is "have a minute patience", then click the "Lab" link again.
11 +When starting the Jupyter notebook environment for the first time it takes about a minute (without visible "in progress" indication) until the example files appear in the file-chooser. Until then the list is just empty. So the fix here is "have a minute patience"
12 12  
13 13  [[image:NoFiles.png]]
14 14  
... ... @@ -18,8 +18,9 @@
18 18  
19 19  === Lab error message "Cannot open - Could not find path..." ===
20 20  
21 -When first opening the Lab it is in rare cases possible, that it can not open the path /shared/name-of-the-collab, even though in the drive the path is already accessible (see the two screenshots below from the Lab and the Drive). This is due to some delay in synchronisation between the file systems. Fix: Wait a few minutes and try again.
21 +When first opening the Lab it is possible, that it can not open the path /shared/name-of-the-collab, even though in the drive the path is already accessible (see the two screenshots below from the Lab and the Drive). This is due to some delay in synchronisation between the file systems. Fix: Wait a few minutes and try again... (If that does not fix the problem, please contact support@ebrains.eu)
22 22  
23 +
23 23  [[image:1623846216460-541.png]]
24 24  
25 25  In the "Drive" the path is visible:
... ... @@ -29,14 +29,14 @@
29 29  
30 30  === Test jobs make problems at Jülich ===
31 31  
32 -Since August 2021 accessing the "Lab" link in the left hand navigation menu brings up a site selection menu:
33 +Since August 2021 accessing the "Lab" link in the left hand navigation menu brings up a new site selection menu:
33 33  
34 34  [[image:Screenshot 2021-08-30 at 19.00.59.png||height="252" width="300"]]
35 35  
36 -Via choosing a different lab execution site it is be possible to choose a specific site, if there are specific needs for the created Jupyter virtual machine for a given task (e.g. a large memory requirement). Currently all the examples do not need any site specific features, so you can select in principle any site. The "safe choice" is to use CSCS as the primary execution site.
37 +Via choosing a different lab execution site it is be possible to choose a specific site, if there are specific needs for the created Jupyter virtual machine for a given task (e.g. a large memory requirement). Currently all the examples do not need any site specific features, so you can select in principle any site. BUT (as of end of August 21) there is a sporadic problem with the NMPI communication, if running at Jülich. Thus for now, please use CSCS as the primary execution site.
37 37  
38 38  
39 -=== ===
40 +=== ===
40 40  
41 41  
42 42  
... ... @@ -64,16 +64,6 @@
64 64  
65 65  Also since 21 June 2021 a separate quota setting is used for BrainScaleS-2 (visible on the Quota tab in the JobManager)
66 66  
67 -=== BrainScaleS-2 interactive demo does not work with error message "ModuleNotFoundError: No module named 'pynn_brainscales'" ===
68 -
69 -The BrainScaleS-2 interactive examples need the BrainScaleS client software. Currently (December 2021) this software is not available from the started-by-default "Python 3" kernel in the Jupyter lab, but requires the "EBRAINS_release_...." kernel. Please choose the kernel by clicking the kernel name in the lower left hand corner of the Lab window ("Python 3" in the screenshot)
70 -
71 -[[image:1639576461861-804.png]]
72 -
73 -Then select the "EBRAINS_release_..." kernel from the dialog box and run the example again.
74 -
75 -[[image:1639576524483-695.png]]
76 -
77 77  == BrainScaleS-1 specific ==
78 78  
79 79  The [[BrainScaleS external user chat>>https://chat.bioai.eu/external-users/channels/town-square]] has service announcements (e.g. when a system is down due to maintenance) and is also a good place to ask general questions.
... ... @@ -91,4 +91,4 @@
91 91  
92 92  There are also some additional Python3 related changes in the brainscales_system_chain_test.py example. Please find a [[working example script>>https://lab.ch.ebrains.eu/user-redirect/lab/tree/shared/NMC%20Collab%20copy%20template/BrainScaleS/BrainScaleS_01_Chain.ipynb]] in our [[copy-template Drive>>https://wiki.ebrains.eu/bin/view/Collabs/nmc-collab-copy-template/Drive]] (for copying into users collabs).
93 93  
94 -==== ====
85 +==== ====
1639576718553-361.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.kindler
Size
... ... @@ -1,1 +1,0 @@
1 -56.4 KB
Content