* Added note on how to run Windows from physical partition on a VM.

R/20180215.Rstudio-on-HPC.md

@@ -1,9 +1,9 @@
-R-related stuff
-===============
+RStudio on HPC
+==============
 
 
-Rstudio
--------
+Rstudio on Turing
+-----------------
 [20180215]
 
 To use R Studio on Turing:
@@ -16,3 +16,10 @@ I also upgraded R to 3.4.3, it is built with ICC 18 with MKL as its
 multi-threaded math libraries.
 
  
+
+Rstudio on Wahab
+----------------
+
+Unless you need something out-of-ordinary, please use the Rstudio available
+via [Open OnDemand interface](https://ondemand.wahab.hpc.odu.edu).
+

R/20220621.Rstudio-cheatsheets.md

@@ -0,0 +1,23 @@
+Cheatsheets from RStudio
+========================
+
+RStudio offers a lot of cheatsheets for various tools, methods.
+Check them out here:
+
+https://www.rstudio.com/resources/cheatsheets/
+
+Some notable ones (samples):
+
+* "Data visualization with ggplot2 cheatsheet"
+  https://raw.githubusercontent.com/rstudio/cheatsheets/main/data-visualization.pdf
+
+
+* "Data transformation with dplyr cheatsheet"
+  https://raw.githubusercontent.com/rstudio/cheatsheets/main/data-transformation.pdf
+
+* "Base R cheatsheet" (contributed, Mhairi McNeill)
+  https://raw.githubusercontent.com/rstudio/cheatsheets/main/base-r.pdf
+  http://github.com/rstudio/cheatsheets/blob/main/base-r.pdf
+
+* "Advanced R cheatsheet" (contributed, Arianne Colton and Sean Chen)
+  https://www.rstudio.com/wp-content/uploads/2016/02/advancedR.pdf

README.md

@@ -8,12 +8,24 @@ and our
 as a quick-and-dirty, programmer-friendly, collaborative space for
 storing knowledge, pointers, etc. to non-sensitive information
 about research computing in general.
+The target audience of this KB is our own staff (primarily)
+and the students who are working with us.
 
-Once certain bit of topic has crystallized and matured,
-we can edit and polish the KB article to become a wiki
+Documents in this space is meant to be rather quick and dirty,
+allowing us to capture information & knowledge and somewhat organize them,
+without being bogged down with tedious polishing.
+Once a certain bit of topic has crystallized and matured,
+we can edit and polish the KB article to become a wiki article
 or Q&A.
 
 NOTE:
 WP started this KB as a personal project in 2019, but would like to invite all
 other RCS staff to work together to create a library of our collective
 knowledge.
+
+**WARNING**:
+
+  * This KB is intended to store public and internal knowledge base that is
+    *NOT* confidential.
+  * Do not store sensitive information on this KB *at all*!
+

ansible/20220505.Ansible-major-updates.md

@@ -0,0 +1,17 @@
+Notes on Ansible Major Updates
+==============================
+
+Major Changes Between Versions
+------------------------------
+
+Version 2.7 --> 2.8
+https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_2.8.html
+
+Version 2.6 --> 2.7
+https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_2.7.html
+
+Version 2.5 --> 2.6
+https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_2.6.html
+
+Version 2.4 --> 2.5
+https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_2.5.html

carpentries/20220719.Carpentries-offline.md

@@ -0,0 +1,20 @@
+Software & Data Carpentry Workshops Without Internet
+====================================================
+
+Problem statement:
+
+* How can we run SWC / DC workshops in areas where internet access is
+  unreliable *or* non-existent?
+
+
+"Running Software/Data and Library Carpentries workshops offline"
+https://medium.com/newcastle-university-research-software-engineering/running-software-data-and-library-carpentries-workshops-offline-a583adf087ca
+2022-06-27 - Janetta Steyn - Newcastle University Research Software Engineering
+
+* Use Raspberry Pi (RPi 4 or RPi 400 ideally) as a web server to connect to & interact with.
+
+
+Project:
+
+* https://github.com/carpentriesoffline/CarpentriesOffline.github.io
+

graphics/20220612.Image-processing-lessons.md

@@ -0,0 +1,22 @@
+Lessons on Image Processing
+===========================
+
+
+"Image Processing with Python"
+https://datacarpentry.org/image-processing/
+
+A Data Carpentry lesson.
+
+About the lesson:
+
+>   "This lesson shows how to use Python and skimage to do basic image
+    processing."
+
+>   "With this lesson, we aim to provide a thorough grounding in the
+    fundamental concepts and skills of working with image data in
+    Python. Most of the examples used in this lesson focus on one
+    particular class of image processing technique, morphometrics, but
+    what you will learn can be used to solve a much wider range of
+    problems."
+
+

security/20220202.TrustedCI-Framework-notes.md

@@ -0,0 +1,19 @@
+TrustedCI Framework
+===================
+
+What is TrustedCI Framework?
+----------------------------
+
+
+Adoption of TrustedCI Framework by NSF
+--------------------------------------
+
+2022-02-02
+
+In December, NSF published its newly-renamed Research Infrastructure Guide (RIG)
+(f.k.a. Major Facilities Guide).
+This publication included substantial updates to its cybersecurity content,
+and increased alignment to the Trusted CI Framework.
+Check out our blog post to learn more:
+
+https://blog.trustedci.org/2022/02/nsf-publishes-new-research.html

tensorflow/20220601.GPU-troubleshooting.md

@@ -0,0 +1,20 @@
+Troubleshooting TensorFlow / KERAS GPU Process
+==============================================
+
+
+Common issues:
+
+* Model too big
+  (print the KERAS model---is the number of parameters doable with the GPU?)
+
+* Batch size too large
+
+* Memory not released from previous processing
+
+  (use `with tf.Session() as sess:` code block)
+
+
+
+
+
+

vm/20220405.run-Windows-in-VM-Linux.md

@@ -0,0 +1,21 @@
+Running Windows OS in VM under Linux
+====================================
+
+[20220405]
+
+"Convert your Windows install into a VM on Linux"
+https://opensource.com/article/21/1/virtualbox-windows-linux
+2021-01-21 - David Both
+
+>   "Here's how I configured a VirtualBox VM to use a physical Windows
+    drive on my Linux workstation."
+
+Major steps:
+
+* Backup the existing install
+
+* Configure virtualbox
+
+* UNlock the Windows drive
+
+* Reactivating Windows? -- buy $$$?