Awesome work! Congratulations! Marc On Sep 11, 2017, at 8:47 AM, Camiel Vanderhoeven via cctech <cctech@classiccmp.org> wrote:
For a change, rather than a request for help, here¹s a success story: I managed to bring a Convex C220 (dual vector CPU mini supercomputer from 1988) back to life. Both CPUs are working, but I¹m running with a single CPU because of the power it draws with two CPUs. Next challenges: the Convex C1, and quad vector processor C240 (not before I¹ve upgraded the power feed). Running ConvexOS 11.5.1, it has FORTRAN 7.0.1 installed; I ran a little benchmark, and with a single CPU the system clocks in at 49.1 MFLOPS on a big multiply-add loop (advertised peak performance was 50 MFLOPS per CPU). Getting the system to the state where it is now was quite a journey (though nowhere near as bad as it might have been). If you¹re interested in the details, I have a (somewhat long) report of my work on my website; if you go to http://www.vaxbarn.com/index.php/other-bits/603-convex-c220, there are some links at the bottom that have much more details, as well as photos of the system and the boards. Now I¹m looking for some FORTRAN code that would typically have run on this kind of computer so I can show people what this kind of system was used for. Camiel
