Week 4
Homework
- Written HW: Ben-Ari p. 39:
- Exercises 2, 3, and 4
- Due: Mon, Feb 11
UPC
- Unified Parallel C
- see resources in sidebar
- tutorial introduction
ssh keys
- you need to set up your accounts for ssh’ing between workstations without password prompts
- follow these steps to establish a trust connection for your account among our workstations
$ ssh-keygen
hit enter through all the prompts$ cd ~/.ssh- then type this command:
$ cat id_rsa.pub >> authorized_keys2
- for more information about ssh and public key authentication, see: Secure_Shell
setup
- create a bin directory if you don’t already have one:
$ cd$ mkdir bin
- copy my setup script into your bin directory:
$ cp ~mlsmith/bin/set-upc-env ~/bin
- run your setup script:
$ source ~/bin/set-upc-env
- copy the tutorial programs to your account under your course directory:
$ cd ~/cs377$ cp -r ~mlsmith/cs377-examples/upc ./
this will create aupcdirectory under your course directory
- now you’re ready to compile and run! (see sidebar technical reference)
Lecture Notes
- Ben-Ari Ch’s 1 and 2
- Ben-Ari slides: PDF
- resume slide 34
- Formula(number of possible interleavings):
- # interleavings = (nk)! / (k!)^2
- where n = # processes and k = # steps / process
