Merge branch '13570-crunch-ram-doc' closes #13570

[arvados.git] / doc / user / cwl / cwl-style.html.textile.liquid

diff --git a/doc/user/cwl/cwl-style.html.textile.liquid b/doc/user/cwl/cwl-style.html.textile.liquid
index db03adf1c07135e57f84b8643c6b922b1091c140..6b5147ddcbda8260f9431fa8ec201bc759a8aa41 100644 (file)
--- a/doc/user/cwl/cwl-style.html.textile.liquid
+++ b/doc/user/cwl/cwl-style.html.textile.liquid
@@ -113,6 +113,8 @@ steps:
         tmpdirMin: 90000
 </pre>
 
+* Available compute nodes types vary over time and across different cloud providers, so try to limit the RAM requirement to what the program actually needs.  However, if you need to target a specific compute node type, see this discussion on "calculating RAM request and choosing instance type for containers.":{{site.baseurl}}/api/execution.html#RAM
+
 * Instead of scattering separate steps, prefer to scatter over a subworkflow.
 
 With the following pattern, @step1@ has to wait for all samples to complete before @step2@ can start computing on any samples.  This means a single long-running sample can prevent the rest of the workflow from moving on: