Luca Marsella on "File transfer to CSCS machines"
Q: I'm a new user at CSCS. I cannot use ftp to connect to the system and upload files. Could you give some advice?
View ArticleLuca Marsella on "File transfer to CSCS machines"
You should be able to use scp or sftp instead: check the availability of these commands using which scp or which sftp on the terminal. For more information on their usage, have a look at the manual...
View ArticleLuca Marsella on "How to manage my jobs in the queue?"
Q: How can I list all my jobs in the system, get details on each of them and delete one of my jobs in the queue?
View ArticleLuca Marsella on "How to place and release a job from hold state?"
Q: How can I place my SLURM job into an hold state? And how can I release the hold?
View ArticleLuca Marsella on "How to have the list of available nodes and partitions?"
Q: How can I view the list of available partitions and nodes and obtain detailed information on them?
View ArticleLuca Marsella on "How to display job accounting information?"
Q: How can I display accounting informations of my SLURM jobs?
View ArticleLuca Marsella on "Getting information on the configuration and nodes available"
Q: How can I see the detailed configuration of the current SLURM system and see the list of the available nodes?
View ArticleLuca Marsella on "What is the meaning of job state codes?"
Q: I have submitted a job with SLURM, but I don't understand the meaning of the different job state codes displayed in output by the command squeue.
View ArticleLuca Marsella on "What is the meaning of job state codes?"
Jobs typically pass through several states in the course of their execution. The typical states are PENDING, RUNNING, SUSPENDED, COMPLETING and COMPLETED. An explanation of each state follows:CA...
View ArticleLuca Marsella on "Getting information on the configuration and nodes available"
The corresponding commands are scontrol show config and scontrol show nodes respectively.
View ArticleLuca Marsella on "How to display job accounting information?"
You can have this information with the command sacct -l -u $USER
View ArticleLuca Marsella on "How to have the list of available nodes and partitions?"
The command sinfo -a -l gives you a list of the available partitions.Typing scontrol show partition PARTITION you will get details on the chosen partition: if you don't specify a partition, you will...
View ArticleLuca Marsella on "How to manage my jobs in the queue?"
You can see your jobs in the queue issuing the command squeue -a -l -u $USER.In order to see details on a specific job, type scontrol show JOB_ID.If you want to delete one of your submitted jobs, the...
View ArticleLuca Marsella on "How to place and release a job from hold state?"
In order to place a job on hold type scontrol hold JOB_ID.To release the job from the hold state, issue scontrol release JOB_ID.`
View ArticleLuca Marsella on "Where can I run Matlab, do you have a template script?"
Matlab is available as a module on Julier for post-processing, but you may load the module directly from Ela, switching the default module environment from rosa to julier first:module switch rosa...
View ArticleLuca Marsella on "How to chain jobs between Rosa and Julier?"
Q: I would like to run a post-processing job on Julier which depends on the data produced by another job running on Rosa. How can I set such a chain of jobs?
View ArticleLuca Marsella on "How to chain jobs between Rosa and Julier?"
Chaining jobs between machines means launching two dependent jobs, with the second one starting after the first one has finished, but on different systems (Rosa and Julier in this case). First you have...
View ArticleLuca Marsella on "How to optimize the number of tasks per node?"
Q: My application requires more than 1 GB per task, so I had to reduce the number of tasks per node. Is there an optimal choice for the number of tasks per node on Rosa?
View ArticleLuca Marsella on "How to optimize the number of tasks per node?"
Remember that you are charged resources per node: of course when memory becomes an issue, then you need to reduce the number of tasks per node. However you will gain not only the extra memory but also...
View ArticleLuca Marsella on "How to transfer efficiently data to /project"
Q: How can I move a considerable amount of data efficiently to my /project folder?
View ArticleLuca Marsella on "How to transfer efficiently data to /project"
If you need to transfer a large amount of data from your local platform to your /project folder at CSCS or viceversa, you have an alternative that might run faster then sftp or scp. The program mpscp...
View ArticleLuca Marsella on "How to write on /project when I belong to more than one group"
Q: I would like to store data under a second /project folder, since I am a collaborator of that group as well.However I get an error when I try to write there. Can you help me?
View ArticleLuca Marsella on "How to write on /project when I belong to more than one group"
If you belong to more than one project, you should see the corresponding group IDs issuing the command groups on your shell. You are always logged in as your primary project: therefore, if wish to...
View ArticleLuca Marsella on "How to check the quota on /project"
Q: I can I check my quota on /project?
View ArticleLuca Marsella on "How to check the quota on /project"
You can check your quota on $HOME (/users) and $PROJECT (/project) with the following command on the front-end system Ela (ela.cscs.ch): /usr/local/bin/quota.ksh or simply quota which points to the...
View ArticleLuca Marsella on "Where to find Third Party Scientific Libraries"
Q: Which modules provide optimized scientific libraries?
View ArticleLuca Marsella on "Where to find Third Party Scientific Libraries"
Please have a look at module help tpsl: TPSL (Third Party Scientific Libraries) is the name of a module containing a collection of outside mathematical libraries that can be used with PETSc and...
View ArticleLuca Marsella on "How can I check the commands and flags invoked by the...
Q: I would like to check which command and flags are invoked by the compiler wrapper of the Programming Environment that I have loaded, is it possible?
View ArticleLuca Marsella on "How can I check the commands and flags invoked by the...
After you load all modules that you need, you can issue one of the following commands to have a list of the flags invoked by the appropriate compiler wrapper: cc -### (or ftn or CC in place of cc)orcc...
View ArticleLuca Marsella on "How can I find the path to a library?"
Q: I would like to link my code to a specific library. How can I find its path on Rosa?
View ArticleLuca Marsella on "Useful commands of the module framework"
Q: Where can I find a list of module commands?
View ArticleLuca Marsella on "Useful commands of the module framework"
You have a list of the most useful module commands on the CSCS User Portal at:http://user.cscs.ch/software_and_programming_environment/compilers_and_programming/rosa_cray_xt5/modules_framework/index.html
View ArticleLuca Marsella on "User's personal information"
Q: Where can I check the information associated to my username at CSCS?
View ArticleLuca Marsella on "User's personal information"
You have the possibility to login on the User Portal at CSCS using your credentials: visit http://user.cscs.ch/ and click on the "Login" link on the top right of the screen.After each successful login,...
View ArticleLuca Marsella on "How can I find the path to a library?"
In order to compile your code on Rosa you should load the module of a Programming Environment and of the libraries that you need: module avail to have a list of the modules available on the...
View Article
