Completely as an aside, the next question then is 'Aha - but what happens when you have new users on the cluster' I am currently working with sssd authentication and with the pam_mkhomedir plugin. I guess if an MPI job is launched using ssh then pam_mkhomedir would automatically create the home directory too!
On 12 May 2018 at 22:02, John Hearns <hear...@googlemail.com> wrote: > Well I DID say that you need 'what looks like a home directory'. > So yes indeed you prove, correctly, that this works just fine! > > On 12 May 2018 at 20:17, Eric F. Alemany <ealem...@stanford.edu> wrote: > >> >> Hi John, >> >> No worries at all. I take all ideas, comments and advice with the >> greatest respect. >> I know that my questions and knowledge of SULRM/cluster are very basics. >> I have built very small and simple cluster. This is an opportunity for me >> to learn at a bigger scale. >> >> Each node has a user home directory because I thought that all users must >> have the same uid and guid across the nodes. >> The two users (post-docs) who will use the cluster will only log in to >> the headnode and install their programs and run their jobs from the >> headnode. >> >> Thank you for your help. >> >> Best, >> Eric >> >> .___________________________________________________________ >> __________________________________________ >> >> * Eric F. Alemany * >> *System Administrator for Research* >> >> Division of Radiation & Cancer Biology >> Department of Radiation Oncology >> >> Stanford University School of Medicine >> Stanford, California 94305 >> >> Tel:1-650-498-7969 No Texting >> Fax:1-650-723-7382 >> >> On May 12, 2018, at 00:08, John Hearns <hear...@googlemail.com> wrote: >> >> Eric, I'm sorry to be a little prickly here. >> Each node has an independent home directory for the user? >> How then do applications update dot files? >> How then would as a for instance do the users edit the .bashrc file to >> bring Anaconda into their paths? >> >> Beofre anyone says it, a proper Modules system is the way forward. >> But I know that when you install Anaconda as a user it adds the path to >> your .bashrc >> Which fouls up Gnomes dbus daemon, which is another tale. >> >> >> >> >> >> >> >> On 12 May 2018 at 07:09, Eric F. Alemany <ealem...@stanford.edu> wrote: >> >>> Hi Chris, >>> >>> Thank you for your comments. I will look at Easybuild. There are quite a >>> few options to automate the creation of software modules. >>> >>> I will be doing lots of reading this week-end. >>> >>> By the way, i signed up to the Beowulf mailing list. >>> >>> Thank you, >>> >>> Eric >>> ____________________________________________________________ >>> _________________________________________ >>> >>> * Eric F. Alemany * >>> *System Administrator for Research* >>> >>> Division of Radiation & Cancer Biology >>> Department of Radiation Oncology >>> >>> Stanford University School of Medicine >>> Stanford, California 94305 >>> >>> Tel:1-650-498-7969 No Texting >>> Fax:1-650-723-7382 >>> >>> >>> >>> On May 11, 2018, at 12:56 AM, Chris Samuel <ch...@csamuel.org> wrote: >>> >>> On Friday, 11 May 2018 5:11:38 PM AEST John Hearns wrote: >>> >>> Eric, my advice would be to definitely learn the Modules system and >>> implement modules for your users. >>> >>> >>> I will echo that, and the suggestion of shared storage (we use our >>> Lustre >>> filesystem for that). I would also suggest looking at a system to help >>> you >>> automate building of software packages. Not only does this help >>> replicate >>> builds, but it also gives you access to the community who write the >>> recipes >>> for them - and that itself can be very valuable. >>> >>> We use Easybuild (which also automates the creation of software modules >>> - and >>> I would suggest using the Lmod system for that): >>> >>> https://easybuilders.github.io/easybuild/ >>> >>> But there's also Spack too: >>> >>> https://spack.io/ >>> >>> As another resource (as we are going off topic from Slurm here), I would >>> suggest the Beowulf list as a mailing list that deals with Linux based >>> HPC >>> systems of many different scales. Disclosure: I now caretake the list, >>> but >>> it's been going since the 1990s. >>> >>> http://beowulf.org/ >>> >>> All the best! >>> Chris >>> -- >>> Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC >>> >>> >>> >>> >> >
