Here are web resources for Astronomy 5900/Physics 6860: Numerical Methods in Physics and Astrophysics

The Course Syllabus

Presentation Schedule

The Programs Supplied with the textbook by Wolfson and Pert

These are the programs supplied with the text and a Makefile to compile them on an IBM PWR3 workstation (just change
FFLAGS=-O
and
LDFLAGS=
to compile on a generic box)
I cannot recommend the programming style embodied here.
No Fortran program should be written that does not include an IMPLICIT NONE statement and the use of Fortran IV is outdated.
Nevertheless, they have been tested and presumably work (note there are 2 programs that don't work in here, a test).

Programs I have written/modified for the course and that you will need to do the homeworks

Suggestions for possible projects topics

Basics of MPI parallelization

Some simple example MPI routines

A set of example MPI routines based on a course presented by Vijay Sonnad

IEEE Standard Explanation

Signed and Unsigned Integers Explanation