Last modified by sndueste on 2025/02/05 15:00
From version 7.1
edited by sndueste
on 2020/02/20 17:24
Change comment: There is no comment for this version
To version 6.1
edited by sndueste
on 2020/02/20 17:13
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -10,25 +10,21 @@
10 10  
11 11  == Access to the Maxwell cluster ==
12 12  
13 +
13 13  The [[Maxwell Cluster>>url:https://confluence.desy.de/display/IS/Photon+Science+on+Maxwell||rel="nofollow" shape="rect"]] is a powerful farm of inter-connected PC nodes running Scientific GNU/Linux. **To access the cluster you need a DESY AFS computing account or a so called scientific account (PSX).**
14 14  
15 -{{info title="PSX account"}}
16 -The scientific (internally called: PSX)  account is a "real" account that is needed to be able to log into DESY computers ( mainly used for Maxwell). This is different from the[[ DOOR>>url:https://door.desy.de/door/index.php||shape="rect"]] account that you need for administrative purposes to be registered for the experiment, do safety training etc.
16 +\\
17 17  
18 -To get a PSX account please talk to your local contact well before the beamtime. The local contact will take care of the paper work and send you more instructions.
19 -{{/info}}
18 +* If you have a default DESY AFS account login to **[[max-fsc.desy.de>>url:http://max-fsc.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}} using your personal account. (From outside of DESY network tunnel through **[[bastion.desy.de>>url:http://bastion.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}} or use the [[remote login(% class="confluence-embedded-file-wrapper confluence-embedded-manual-size" %)~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://confluence.desy.de/display/IS/Remote+Login||rel="nofollow" shape="rect"]](%%) to **[[max-display.desy.de>>url:http://max-display.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}}.
19 +* Scientific account users instead go to **[[desy-ps-cpu.desy.de>>url:http://desy-ps-cpu.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}}. To connect to the Maxwell cluster from outside the DESY network ~-~- eduroam or the DESY guest network are considered to be outside ~-~- then you can SSH tunnel your connection through **[[desy-ps-ext.desy.de>>url:http://desy-ps-ext.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}} or more conveniently directly use the [[remote login(% class="confluence-embedded-file-wrapper confluence-embedded-manual-size" %)~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://confluence.desy.de/display/IS/Remote+Login||rel="nofollow" shape="rect"]](%%) to **[[max-display.desy.de>>url:https://max-display.desy.de:3443/||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}}.
20 20  
21 -* Scientific account (PSX) users instead go to **[[desy-ps-cpu.desy.de>>url:http://desy-ps-cpu.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}}. To connect to the Maxwell cluster from outside the DESY network ~-~- eduroam or the DESY guest network are considered to be outside ~-~- then you can SSH tunnel your connection through **[[desy-ps-ext.desy.de>>url:http://desy-ps-ext.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}} or more conveniently directly use the [[remote login(% class="confluence-embedded-file-wrapper confluence-embedded-manual-size" %)~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://confluence.desy.de/display/IS/Remote+Login||rel="nofollow" shape="rect"]](%%) to **[[max-display.desy.de>>url:https://max-display.desy.de:3443/||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}}.
22 -* If you have a default DESY AFS (DESY employees) account login to **[[max-fsc.desy.de>>url:http://max-fsc.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}} using your personal account. (From outside of DESY network tunnel through **[[bastion.desy.de>>url:http://bastion.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}} or use the [[remote login(% class="confluence-embedded-file-wrapper confluence-embedded-manual-size" %)~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://confluence.desy.de/display/IS/Remote+Login||rel="nofollow" shape="rect"]](%%) to **[[max-display.desy.de>>url:http://max-display.desy.de||rel="nofollow" shape="rect" class="external-link"]]**{{code language="none"}}{{/code}}.
21 +**Note**: Please, always do use your personal account to work on the Maxwell cluster or any central DESY computing resources. Don't use the functional accounts like vuvfuser or bl1user. Using functional accounts on shared resources causes many difficult to predict problems, even if it might appear to work for you in the beginning. Also, **never** try to login to **bastion**{{code language="none"}}{{/code}}, **desy-ps-ext**{{code language="none"}}{{/code}}, or **max-display**{{code language="none"}}{{/code}} using one of the functional accounts.
23 23  
23 +The rest of this guide assumes you can login to the suggested Maxwell cluster node and are able to successfully run the command **xclock**{{code language="none"}}{{/code}} to get a clock face displayed on your client computer.
24 +
24 24  \\
25 25  
26 -{{info title="functional accounts"}}
27 -**Note**: Please, always do use your personal account to work on the Maxwell cluster or any central DESY computing resources. Don't use the functional accounts like vuvfuser or bl1user. Using functional accounts on shared resources causes many difficult to predict problems, even if it might appear to work for you in the beginning. Also, **never** try to login to **bastion**{{code language="none"}}{{/code}}, **desy-ps-ext**{{code language="none"}}{{/code}}, or **max-display**{{code language="none"}}{{/code}} using one of the functional accounts.
28 -{{/info}}
27 +\\
29 29  
30 -== Maxwell cluster ==
31 31  
32 -The [[Maxwell Cluster>>url:https://confluence.desy.de/display/IS/Photon+Science+on+Maxwell||rel="nofollow" shape="rect"]] is
33 -
34 34  \\