About Collatz Conjecture

Collatz is a research project that uses Internet-connected computers to do research in mathematics. You can participate by downloading and running a free program on your computer.

Collatz Conjecture is based in Wood Dale, Illinois. It is a privately managed BOINC project attempting to disprove the Collatz Conjecture. For more information about the Collatz Conjecture, check out the Wikipedia Collatz page. The Collatz Conjecture project makes use of the parity sequence optimization and runs on Linux, Windows, and OS X and can utilize CPUs as well as AMD, nVidia, and Intel graphics cards.
See the results gathered to date

System Requirements

You must have an OpenCL driver installed for your CPU or video card that is recognized by the BOINC client in order to run OpenCL versions of the application. CUDA 4.0 (Linux) or CUDA 5.5 (Windows) is required to run non-OpenCL nVidia applications. AMD CAL 1.4 is supported for pre-HD7xxx AMD GPUs. All other AMD GPUs must have OpenCL capable drivers installed. Both standalone (single core non-OpenCL) CPU and OpenCL (multiple core) CPU applications exist. Set your preferences to omit either, neither, or both.

• BOINC 5.0 or later for CPU tasks
• BOINC 7.0.28 or later for OpenCL GPU tasks on AMD, nVidia, or Intel GPUs
• BOINC 7.2.21 or later for OpenCL CPU tasks
• For OpenCL CPU Processing:
  • OS X 10.7 or later (no additional OpenCL driver necessary)
  • For Linux and Windows, either the Intel or AMD OpenCL driver is required.
  • For Windows, the most recent Visual Studio 2012 C++ runtime
• For GPU processing:
  • AMD Radeon HD 4800 or later graphics card with OpenCL support
  • Intel HD 2500 or later embedded GPU with Intel OpenCL driver
  • nVidia 8400 GS or later graphics card with recent nVidia driver
• OpenCL Drivers are available from:
  • AMD Video Driver - Caution: The HD 4770 and 48xx GPUs require the Legacy AMD Catalyst driver which is NOT the same as the current AMD Catalyst driver.
  • nVidia Video Driver
  • Intel OpenCL SDK and/or Runtime - requires Intel Core processor with SSE4.1

Note: If using multiple OpenCL devices from multiple vendors (e.g. nVidia video card and Intel CPU), it is recommended that the driver with the lowest OpenCL support level (1.0, 1.1, 1.2) be installed first. If possible, install OpenCL drivers that all support the same OpenCL version.

Join Collatz Conjecture

• Due to spammers creating millions of bogus accounts, invite codes have been enabled and will change on a regular basis. Please contact the project admin to get the invite code so you can create an account.
• Read our rules and policies
• This project uses BOINC. If you're already running BOINC, select Add Project. If not, download BOINC.
• When prompted, enter
  https://boinc.thesonntags.com/collatz/
• If you're running a command-line version of BOINC, create an account first.
• If you have any problems, get help here.

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