Cray Super Computers: Discover, Explore and Celebrate | Virtual Talk

Hear an inside account of the Cray-1 supercomputer and the evolution of Cray machines, celebrating the 50th anniversary of Cray Research.

[@harmonicresonanceproject]

Fascinating - thanks!

[@BooXdk]

Great talk 👍 The first generation Crays are just beautiful 😀

[@cfmitcoordinator6500]

Good stuff!

[@GH-oi2jf]

You seem to be conflating Lawrence Livermore Labs with LANL (Los Alamos National Labs). I think Serial 1 of the Cray-1 went to LANL.

[@tschak909]

He glossed _VERY_ quickly over the power supply. But even the power supply was magnificent, it was designed to provide precisely balanced power with an absolute minimum of noise or ripple. This was critical to the operation of the machine.

[@Derundurel]

The highly pipelined nature of the system must make it very difficult to write software that uses the capabilities efficiently. I wonder what that looked like in reality.

[@rtg5421]

Obviously the compilers were optimized for vector processing and yes, worked very well. Ah, I remember well.

[@GH-oi2jf]

The Fortran compiler generated vector instructions when it could. It was fairly easy to write Fortran code for vector algorithms. For problems which were not vectored, the Cray-1 was a very fast scalar machine as well.