There are several files to turn in for this assignment. They should all be included in a file named hw01.tar that you submit using the turnin utility. Please use the filenames specified and be sure to include your name in each file. Please ask if you have any questions about creating the tar file or using the turnin utility.

1. Send me mail at terescoj@cs.williams.edu with a brief (a couple sentences) description of your level of experience with the Unix operating system and its variants. Also include list programming languages you have used and your proficiency in each, any experience you've had with parallel programming, and anything else you'd like me to know about your background. (0 points)
2. Log into and familiarize yourself with your CSLab Unix account. Forward your CSLab electronic mail to an address you read regularly, as I will often use your @cs.williams.edu address. Try FreeBSD systems in the lab (epirus, hinterwald, toto, pester, zebu, faeroes, dulong, bearnaise, pineywoods, basuto, baggerbont, watusi) and the Solaris cluster (bullpen). Create a directory in your account for work from this class. Change the permissions on the directory so only you have read or write access to it. (0 points)
3. Read the web page for the Bullpen cluster here. Don't worry if some of the terminology is not yet familiar. (0 points)
4. Copy the C program here that computes the late penalties for this course to your CSLab Unix account. Compile and run it, redirecting your output to a file late.txt. Include this file in the tar file that you submit when you are finished. (1 point)
5. In a plain text file hw01.txt, name an application you use that you think could benefit from parallel processing. Describe how you think it could be parallelized and what benefit parallelization might provide. (1 point)
6. Copy this file to your CSLab Unix account, either from this link, or from /home/faculty/terescoj/shared/cs338/hw01/make-example.tar. It is a "tar file" of a small C program that demonstrates the use of multiple source files and Makefiles. Extract the files (tar xvf make-example.tar) and compile the program with make. Breifly describe in your plain text file hw01.txt how make uses the rules in the Makefile to produce the executable main. (1 point)
7. The Bullpen web page includes a simple parallel program called mpihello.c.
   • Copy mpihello.c to your account.
   • Create a Makefile that builds an executable called mpihello when you type make or gmake. Be sure to create a 64-bit MPICH executable.
   • Run the program with two processes interactively on bullpen and redirect the output to a file mpihello.out.
   • Run the program three ways through the PBS batch system:
     Create and run a PBS script twoonone.pbs that runs the program with two processes on any one node and sends the output to a file twoonone.out.
     Create and run a PBS script fouronfour.pbs that runs the program that runs the program with four processes on four different nodes, one process per node, and sends the output to a file fouronfour.out.
     Create and run a PBS script all24.pbs that runs the program that runs the program with 24 processes on all available nodes, one process per processor, and sends the output to a file all24.out. Hint: the cluster has two 4-processor nodes (ppn=4), six 2-processor nodes (ppn=2), and four uniprocessor nodes.
   • Include the files mpihello.c, Makefile, mpihello.out, twoonone.pbs, twoonone.out, fouronfour.pbs, fouronfour.out, all24.pbs, and all24.out in your submitted tar file. Do not include any ".o" files or the mpihello executable. (2 points)