Add/dask example scikit learn (#148)

* add dask example with scikit learn
* fix bug that if cores not defined, we should default to what is found with --local

Signed-off-by: vsoch <vsoch@users.noreply.github.com>

controllers/flux/templates/wait.sh

@@ -147,7 +147,7 @@ mkdir -p /etc/flux/system
 
 # --cores=IDS Assign cores with IDS to each rank in R, so we  assign 0-(N-1) to each host
 {{ if not .Spec.Logging.Quiet }}echo "flux R encode --hosts={{ .Hosts}} {{if .Cores}}--cores=0-{{.Cores}}{{ end }}"{{ end }}
-flux R encode --hosts={{ .Hosts}} {{if .Cores}}--cores=0-{{.Cores}}{{ end }} > /etc/flux/system/R
+flux R encode --hosts={{ .Hosts}} {{if .Cores}}--cores=0-{{.Cores}}{{ else }}--local{{ end }} > /etc/flux/system/R
 {{ if not .Spec.Logging.Quiet }}printf "\n📦 Resources\n"
 cat /etc/flux/system/R{{ end }}
 

docs/tutorials/index.md

@@ -25,6 +25,7 @@ The following tutorials are provided from their respective directories (and are
  - [Fireworks](https://github.com/flux-framework/flux-operator/blob/main/examples/machine-learning/fireworks)
  - [Pytorch MNIST](https://github.com/flux-framework/flux-operator/blob/main/examples/machine-learning/pytorch)
  - [Tensorflow cifar-10](https://github.com/flux-framework/flux-operator/blob/main/examples/machine-learning/tensorflow)
+ - [Dask with Scikit-Learn](https://github.com/flux-framework/flux-operator/blob/main/examples/machine-learning/dask/scikit-learn)
 
 ### Services