Merge branch 'main' into rewrite-linux-tutorial

Author: lbarraga

intro-HPC/examples/Compiling-and-testing-your-software-on-the-HPC/mpihello.pbs

@@ -12,6 +12,6 @@ cd $PBS_O_WORKDIR
   # load the environment
 
 module purge
-module load intel
+module load foss
 
 mpirun ./mpihello

intro-HPC/examples/HPC-UGent-GPU-clusters/TensorFlow_GPU.sh

@@ -2,7 +2,7 @@
 #PBS -l walltime=5:0:0
 #PBS -l nodes=1:ppn=quarter:gpus=1
 
-module load TensorFlow/2.6.0-foss-2021a-CUDA-11.3.1
+module load TensorFlow/2.11.0-foss-2022a-CUDA-11.7.0
 
 cd $PBS_O_WORKDIR
 python example.py

intro-HPC/examples/Job-script-examples/multi_core.sh

@@ -2,7 +2,7 @@
 #PBS -N mpi_hello             ## job name
 #PBS -l nodes=2:ppn=all       ## 2 nodes, all cores per node
 #PBS -l walltime=2:00:00      ## max. 2h of wall time
-module load intel/2017b
+module load foss/2023a
 module load vsc-mympirun      ## We don't use a version here, this is on purpose
 # go to working directory, compile and run MPI hello world
 cd $PBS_O_WORKDIR

intro-HPC/examples/Job-script-examples/single_core.sh

@@ -2,7 +2,7 @@
 #PBS -N count_example         ## job name
 #PBS -l nodes=1:ppn=1         ## single-node job, single core
 #PBS -l walltime=2:00:00      ## max. 2h of wall time
-module load Python/3.6.4-intel-2018a
+module load Python/3.11.3-GCCcore-12.3.0
 # copy input data from location where job was submitted from
 cp $PBS_O_WORKDIR/input.txt $TMPDIR
 # go to temporary working directory (on local disk) & run

intro-HPC/examples/MATLAB/jobscript.sh

@@ -7,7 +7,7 @@
 #
 
 # make sure the MATLAB version matches with the one used to compile the MATLAB program!
-module load MATLAB/2018a
+module load MATLAB/2022b-r5
 
 # use temporary directory (not $HOME) for (mostly useless) MATLAB log files
 # subdir in $TMPDIR (if defined, or /tmp otherwise)

intro-HPC/examples/Multi-core-jobs-Parallel-Computing/mpi_hello.pbs

@@ -11,6 +11,6 @@ cd $PBS_O_WORKDIR
 
   # load the environment
 
-module load intel
+module load foss
 
 mpirun ./mpi_hello

intro-HPC/examples/OpenFOAM/OpenFOAM_damBreak.sh

@@ -2,7 +2,7 @@
 #PBS -l walltime=1:0:0
 #PBS -l nodes=1:ppn=4
 # check for more recent OpenFOAM modules with 'module avail OpenFOAM'
-module load OpenFOAM/6-intel-2018a
+module load OpenFOAM/11-foss-2023a
 source $FOAM_BASH
 # purposely not specifying a particular version to use most recent mympirun
 module load vsc-mympirun
@@ -15,7 +15,7 @@ export MYMPIRUN_VARIABLESPREFIX=WM_PROJECT,FOAM,MPI
 export WORKDIR=$VSC_SCRATCH_NODE/$PBS_JOBID  # for single-node jobs
 mkdir -p $WORKDIR
 # damBreak tutorial, see also https://cfd.direct/openfoam/user-guide/dambreak
-cp -r $FOAM_TUTORIALS/multiphase/interFoam/laminar/damBreak/damBreak $WORKDIR
+cp -r $FOAM_TUTORIALS/incompressibleVoF/damBreakLaminar/damBreak $WORKDIR
 cd $WORKDIR/damBreak
 echo "working directory: $PWD"
 # pre-processing: generate mesh

intro-HPC/examples/Program-examples/04_MPI_C/mpihello.pbs

@@ -13,6 +13,6 @@ cd $PBS_O_WORKDIR
   # load the environment
 
 module purge
-module load intel
+module load foss
 
 mpirun ./mpihello

mkdocs/docs/HPC/FAQ.md

@@ -74,7 +74,7 @@ It is possible to use the modules without specifying a version or toolchain. How
 this will probably cause incompatible modules to be loaded. Don't do it if you use multiple modules.
 Even if it works now, as more modules get installed on the HPC, your job can suddenly break.
 
-## Troubleshooting jobs
+## Troubleshooting
 
 ### My modules don't work together
 
@@ -226,6 +226,29 @@ information, see .
 
 {% endif %}
 
+
+### Why do I get a "No space left on device" error, while I still have storage space left?
+
+When trying to create files, errors like this can occur:
+
+```shell
+No space left on device
+```
+
+The error "`No space left on device`" can mean two different things:
+
+- all available *storage quota* on the file system in question has been used;
+- the *inode limit* has been reached on that file system.
+
+An *inode* can be seen as a "file slot", meaning that when the limit is reached, no more additional files can be created.
+There is a standard inode limit in place that will be increased if needed. 
+The number of inodes used per file system can be checked on [the VSC account page](https://account.vscentrum.be).
+
+Possible solutions to this problem include cleaning up unused files and directories or 
+[compressing directories with a lot of files into zip- or tar-files](linux-tutorial/manipulating_files_and_directories.md#zipping-gzipgunzip-zipunzip).
+
+If the problem persists, feel free to [contact support](FAQ.md#i-have-another-questionproblem).
+
 ## Other
 
 ### Can I share my account with someone else?
@@ -350,6 +373,32 @@ See also: [Your UGent home drive and shares](running_jobs_with_input_output_data
 {% endif %}
 
 
+### My home directory is (almost) full, and I don't know why
+
+Your home directory might be full without looking like it due to hidden files.
+Hidden files and subdirectories have a name starting with a dot and do not show up when running `ls`.
+If you want to check where the storage in your home directory is used, you can make use of the [`du` command](running_jobs_with_input_output_data.md#check-your-quota) to find out what the largest files and subdirectories are:
+
+```shell
+du -h --max-depth 1 $VSC_HOME | egrep '[0-9]{3}M|[0-9]G'
+```
+
+The `du` command returns the size of every file and subdirectory in the $VSC_HOME directory. This output is then piped into an [`egrep`](linux-tutorial/beyond_the_basics.md#searching-file-contents-grep) to filter the lines to the ones that matter the most.
+
+The `egrep` command will only let entries that match with the specified regular expression `[0-9]{3}M|[0-9]G` through, which corresponds with files that consume more than 100 MB.
+
+
+### How can I get more storage space?
+
+
+[By default](running_jobs_with_input_output_data.md#quota) you get 3 GB of storage space for your home directory and 25 GB in your personal directories on both the data (`$VSC_DATA`) and scratch (`$VSC_SCRATCH`) filesystems.
+It is not possible to expand the storage quota for these personal directories.
+
+You can get more storage space through a [Virtual Organisation (VO)](running_jobs_with_input_output_data.md#virtual-organisations),
+which will give you access to the [additional directories](running_jobs_with_input_output_data.md#vo-directories) in a subdirectory specific to that VO (`$VSC_DATA_VO` and `$VSC_SCRATCH_VO`).
+The moderators of a VO can [request more storage](running_jobs_with_input_output_data.md#requesting-more-storage-space) for their VO.
+
+
 ### Why can't I use the `sudo` command?
 
 When you attempt to use sudo, you will be prompted for a password. 

mkdocs/docs/HPC/MATLAB.md

@@ -31,7 +31,7 @@ license, licenses would quickly run out.
 
 Compiling MATLAB code can only be done from the login nodes, because
 only login nodes can access the MATLAB license server, workernodes on
-clusters can not.
+clusters cannot.
 
 To access the MATLAB compiler, the `MATLAB` module should be loaded
 first. Make sure you are using the same `MATLAB` version to compile and
@@ -93,7 +93,7 @@ with:
 <pre><code>$ <b>export _JAVA_OPTIONS="-Xmx64M"</b>
 </code></pre>
 
-The MATLAB compiler spawns multiple Java processes, and because of the
+The MATLAB compiler spawns multiple Java processes. Because of the
 default memory limits that are in effect on the login nodes, this might
 lead to a crash of the compiler if it's trying to create to many Java
 processes. If we lower the heap size, more Java processes will be able
@@ -122,7 +122,7 @@ controlled via the `parpool` function: `parpool(16)` will use 16
 workers. It's best to specify the amount of workers, because otherwise
 you might not harness the full compute power available (if you have too
 few workers), or you might negatively impact performance (if you have
-too much workers). By default, MATLAB uses a fixed number of workers
+too many workers). By default, MATLAB uses a fixed number of workers
 (12).
 
 You should use a number of workers that is equal to the number of cores
@@ -163,7 +163,7 @@ You should remove the directory at the end of your job script:
 ## Cache location
 
 When running, MATLAB will use a cache for performance reasons. This
-location and size of this cache can be changed trough the
+location and size of this cache can be changed through the
 `MCR_CACHE_ROOT` and `MCR_CACHE_SIZE` environment variables.
 
 The snippet below would set the maximum cache size to 1024MB and the