updates

2022/2022-06-08_JuliaForNewcomers/slides/bootstrap.md

@@ -139,15 +139,3 @@ $ julia --project=path/to/project script.jl
 ```
 
 (Project data is stored in `Project.toml`, `Manifest.toml`.)
-
-
-
-
-<div class=leader>
-☕🧋🧃<br>
-PAUSE
-</div>
-
-Let's have *10 minutes* for a coffee or something.
-
-(Questions?)

2022/2022-06-08_JuliaForNewcomers/slides/distributed.md

@@ -81,6 +81,11 @@ datafiles = ["file$i.csv" for i=1:20]
 	# ... do something ...
 end
 
+pmap(process_file, datafiles)
+```
+
+💡💡 Doing it manually:
+```julia
 @sync for f in datafiles
 	@async @spawnat :any process_file(f)
 end
@@ -145,7 +150,7 @@ Utilizing ULHPC 💡
 
 
 
-# What does ULHPC look like?
+# What does the cluster look like? (Iris)
 
 <center>
 <img src="slides/img/iris.png" width="30%">
@@ -155,6 +160,34 @@ Utilizing ULHPC 💡
 
 
 
+# Running Julia on the computing nodes
+
+Start an allocation and connect to it:
+```sh
+0 [mkratochvil@access1 ~]$ srun -p interactive -t 30 --pty bash -i
+```
+
+(You can also use `si`.)
+
+After some brief time, you should get a shell on a compute node. There you can install and start Julia as usual:
+
+```
+0 [mkratochvil@iris-131 ~](2696005 1N/T/1CN)$ module add lang/Julia
+0 [mkratochvil@iris-131 ~](2696005 1N/T/1CN)$ julia
+               _
+   _       _ _(_)_     |  Documentation: https://docs.julialang.org
+  (_)     | (_) (_)    |
+   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
+  | | | | | | |/ _` |  |
+  | | |_| | | | (_| |  |  Version 1.6.2 (2021-07-14)
+ _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
+|__/                   |
+
+julia> 
+```
+
+
+
 # Making a HPC-compatible Julia script
 
 Main challenges:
@@ -171,7 +204,7 @@ addprocs_slurm(parse(Int, ENV["SLURM_NTASKS"]))
 
 
 
-# Scheduling the script
+# Scheduling an analysis script
 
 Normally, you write a "batch script" and add it to a queue using `sbatch`.
 

2022/2022-06-08_JuliaForNewcomers/slides/language.md

@@ -181,6 +181,24 @@ Example:
 
 
 
+<div class=leader>
+☕🧋🧃<br>
+PAUSE
+</div>
+
+Let's have *10 minutes* for a coffee or something.
+
+(Questions?)
+
+
+
+<div class=leader>
+🔵 🔴 🟢 🟣<br>
+Julia language primer (part 2)
+</div>
+
+
+
 # 💡 Structured cycles!
 
 Using functional-style loops is *much less error-prone* to indexing
@@ -201,6 +219,8 @@ reduce((a,b) -> "$b $a", ["Use", "the Force", "Luke"])
 reduce(*, [1 2 3; 4 5 6], dims=1)
 ```
 
+**Tricky question (💡💡💡):** What is the overhead of the "nice" loops?
+
 
 
 # Making new arrays with loops

2022/2022-06-08_JuliaForNewcomers/slides/overview.md

 # Overview today
 
 0. Why would you learn another programming language again?
-1. Bootstrapping, working with packages, writing a script (45m), pause (10m)
-2. Language and syntax primer (20m)
+1. Bootstrapping, working with packages, writing a script (30m)
+2. Language and syntax primer (35m) with a pause (10m) in the middle
 3. Getting the data in and out (15m)
 4. Running programs on ULHPC (15m)
 5. Questions, hands-on, time buffer (15m)