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Last modified by flenners on 2025-06-24 16:56
From version 15.1
edited by flenners
on 2022-03-30 17:44
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To version 20.1
edited by flenners
on 2024-05-24 14:51
Change comment: There is no comment for this version

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10 10  
11 11  == {{id name="00-HowtologintoMaxwell-TheDOORAccount"/}}The DOOR Account ==
12 12  
13 -Before you arrive you have to create a DOOR account (Institution: Physik Department E17) and do all the safety trainings. This account is also being used for the gamma-portal, where you can manage you beamtime data, grant access to other users and manage FTP access. However this account does not work with other resources. For this you will have to request a second account:
13 +Before you arrive you have to create a DOOR account and do all the safety trainings. This account is also being used for the gamma-portal, where you can manage you beamtime data, grant access to other users and manage FTP access. However this account does not work with other resources. For this you will have to request a second account:
14 14  
15 15  == {{id name="00-HowtologintoMaxwell-ThePSXAccount"/}}The PSX Account ==
16 16  
17 17  If you decide during a beamtime, you want to have access to the cluster, tell your local contact so, and they will request a PSX account for you. With this you will get access to the Kerberos, Windows and afs resources at DESY, which includes the cluster.
18 18  
19 +\\
20 +
21 +After you got the account, you have to change the initial password within 6 days. For this, go to [[https:~~/~~/passwd.desy.de/>>url:https://passwd.desy.de/||shape="rect"]] and log in with your user name and initial password (you do not need any OTP when you sign in for the first time). Then agree to the terms and change your password.
22 +
19 19  = {{id name="00-HowtologintoMaxwell-UsingtheCluster"/}}Using the Cluster =
20 20  
21 21  == {{id name="00-HowtologintoMaxwell-StructureoftheCluster"/}}Structure of the Cluster ==
... ... @@ -29,7 +29,7 @@
29 29  If you have successfully obtained an PSX account you can get started. The entrance node are:
30 30  \\[[https:~~/~~/max-nova.desy.de:3443/auth/ssh>>url:https://max-nova.desy.de:3443/auth/ssh||shape="rect"]]  (if you have access to the nova resources, most likely the case if your beamtime was in cooperation with the Helmholtz Zentrum Hereon)
31 31  
32 -[[https:~~/~~/max-display.desy.de:3443/auth/ssh>>url:https://max-display.desy.de:3443/auth/ssh||shape="rect"]]  (in any case)
36 +[[https:~~/~~/max-display.desy.de:3389/auth/ssh>>url:https://max-display.desy.de:3443/auth/ssh||shape="rect"]]  (in any case)
33 33  
34 34  These nodes are **not **for processing, as you will share them with many other users. So please do not do anything computational intensive on them, like reconstruction or visualization. Viewing images is ok.
35 35  
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129 129  * -N 1: for one node
130 130  * -p psx: on the psx partition. You can also add multiple separated with a comma: -p psx,all
131 131  * -t 1-05:00:00: for the duration of 1 day and 5h
132 -* Other options could be: ~-~-mem=500GB with at least 500GB of memory
136 +* (((
137 +Other options could be: ~-~-mem=500GB with at least 500GB of memory, 
138 +
139 +(% class="code" %)
140 +(((
141 +if you need gpu: (% class="bash plain" %){{code language="none"}}--constraint=P100{{/code}}
142 +)))
143 +)))
133 133  * ... see the SLURM documentation for more options
134 134  
135 135  If your job is scheduled you see your assigned node and can connect via ssh to it. (in the rare case where you do not see anything use my-jobs to find out the host name).
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205 205  
206 206  If you have to add other users to a past beamtime, this can be done via the gamma-portal. After adding the accounts, these people have to make sure to log off from **all **FastX sessions, etc. to update the permissions.
207 207  
208 -= {{id name="00-HowtologintoMaxwell-StartingarecoGUI"/}}Starting a reco GUI =
209 -
210 -== {{id name="00-HowtologintoMaxwell-ShortVersion:"/}}Short Version: ==
211 -
212 -Terminal:
213 -
214 -(% class="code" %)
215 -(((
216 -salloc ~-~-partition=psx ~-~-nodes=1 –-time=06:00:00
217 -\\(if you need gpu: (% class="bash plain" %){{code language="none"}}--constraint=P100{{/code}}(%%) )
218 -\\ssh max-bla123
219 -\\module load anaconda/3
220 -\\source activate ~~/envs/tomopy
221 -\\spyder&
222 -)))
223 -
224 224  \\
225 225  
226 226  \\
227 227  
228 -{{code linenumbers="true" collapse="true"}}
229 -salloc --partition=psx --nodes=1 –-time=06:00:00
230 -
231 -ssh max-bla123
232 -
233 -module load anaconda/3
234 -
235 -source activate ~/envs/tomopy
236 -
237 -spyder&
238 -{{/code}}
239 -
240 240  \\
241 -
242 -Spyder:
243 -
244 -Open RecoGUI,
245 -
246 -(Right click on tab: "Set console working directory") (to be removed)
247 -
248 -Green Arrow to start program
249 -
250 -\\
251 -
252 -== {{id name="00-HowtologintoMaxwell-LongerVersion"/}}Longer Version ==
253 -
254 -\\
255 -
256 -Login to maxwell and allocate a node from the psx partition.
257 -
258 -\\
259 -
260 -You first have to **load the anaconda module:**
261 -
262 -(% class="code" %)
263 -(((
264 -module load anaconda/3
265 -\\
266 -)))
267 -
268 -and **activate your virtual environment**, depending on where you installed it:
269 -
270 -(% class="code" %)
271 -(((
272 -source activate ~~/envs/tomopy
273 -)))
274 -
275 -\\
276 -
277 -~~/ takes you back to your home directory. In this case, the environment "tomopy" was installed in the home directory in the folder "envs". 
278 -
279 -\\
280 -
281 -now you can **start spyder**:
282 -
283 -(% class="code" %)
284 -(((
285 -spyder&
286 -)))
287 -
288 -\\
289 -
290 -EXAMPLE: (virtual environment in "envs/p36"
291 -
292 -[[image:attach:image2021-4-27_13-53-35.png||height="71"]]
293 -
294 -\\
295 -
296 -You can also start another terminal e.g. if you want to look at your data / reconstructions in fiji.
297 -
298 -\\
299 -
300 -\\
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1 -250168659
1 +204941497
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1 -https://confluence.desy.de/spaces/P5I/pages/250168659/00 - How to login to Maxwell
1 +https://confluence.desy.de/spaces/P5I/pages/204941497/00 - How to login to Maxwell