Unit0.3.4Cloning the LAFF-On-PfHP repository

Insert video.

We have placed all materials on GitHub. GitHub is a development environment for software projects. In our case, we use it to disseminate the various activities associated with this course.

On the computer on which you have chosen to work, "clone" the GitHub repository for this course:

• Click on

and copy https://github.com/ULAFF/LAFF-On-PfHP.git.

• On the computer where you intend to work, in a terminal session on the command line in the directory where you would like to place the materials, execute

git clone https://github.com/ULAFF/LAFF-On-PfHP.git


This will create a local copy (clone) of the materials.

• Sometimes we will update some of the files from the repository. When this happens you will want to execute, in the cloned directory,

git stash save


which saves any local changes you have made, followed by

git pull


git stash pop


which restores local changes you made. This last step may require you to "merge" files that were changed in the repository that conflict with local changes.

Upon completion of the cloning, you will have a directory structure similar to that given in Figure 0.3.1.

Homework0.3.4.1.

We start by checking whether your environment is set up correctly for the programming exercises. In a terminal window, change to the directory Assignments/Week0/C/. In it, at the prompt, type

make HelloWorld


This will compile, link, and execute the driver in file main.c. The below video discusses what you should see.

Remark0.3.2.
• If make HelloWorld indicates libblis.a is not found, then you likely did not install that library correction in Unit 0.3.3. In particular, you likely skipped make install.

• If you get the error message

clang: error: unsupported option '-fopenmp'


Then you need to set the path to the gcc compiler. See Unit 0.3.3.