Nothing sexy about this web-page. It describes me, some of the software I write, and the projects I work on.

ECMNet 2.7.3 is used by various projects to factor composites using GMP-ECM. For those of you not familiar with GMP , it is the fastest package available for performing mathematical functions on multi-precision numbers, i.e. numbers of arbitrary length. GMP-ECM is software that will attempt to factor numbers of arbitrary length using ECM, P-1, and P+1 factoring methods. ECMNet is the software that will manage a collection of composites in a server and a group of clients used to factor numbers are determined by the server. A list of projects that you can use GMP-ECM with (some of which are using ECMNet) can be found here. One project that I have spent a lot of time on is the Paul Leyland's Generalized Cullen and Woodall factorization project. It is one of the main projects that I participated in while testing ECMNet.

MultiSieve 5.8 for x86 is program that uses both trial division and discrete logs as a sieve to eliminate numbers faster than can be done from with a primality test. Two projects that use it extensively are Steven Harvey's Generalized Woodall Search and Ken Davis's MultiFactorial Search. I am currently at work on a PowerPC version of MultiSieve that will run on PowerMac G5's running OS X 10.4. In fact, my record Cullen prime was found after sieving with an PPC optimized version of MultiSieve.

I also help Ray Ballinger with his Proth Search website to keep it up to date. MultiSieve can be used with the Cullen and Woodall searches coordinated on that website.

As I have been a Macintosh owner since the original Mac 128, I am a strong proponent of bringing software to the PowerPC platform that is only available on x86 CPUs. Although my efforts may seem small, I hope to provide software that runs faster on PowerPC than a comparable x86. My major disappointment is that the PowerPC does not have a tool like LLR or for primality testing.

If you have a Mac, head over to Phil Carmody's PIES Project. You can use your Mac to find 100000 digit primes. A G5 can perform a PRP test on a number of that size in 3 minutes.

Other passions of mine include my family which includes Carolyn whom I married in 1999 and my sons Brian (2000) and Eric (2002). I enjoy playing Sheepshead, a German card game I am very good at and volleyball, which I am also fairly good at. I also golf during the summer, but I play that more for fun than for competition.

Here is a picture of me with my wife Carolyn, beautiful both inside and out

Here is a picture our first son, Brian

Here is a picture our second son, Eric

If you have any questions about this page, please contact me at rogue (at) wi.rr.com