7 ms·

I ported parts of a TCP stack to the Cray X-MP in the 1980s. It was so fast that at first I thought it was broken. Hit <return> on the compile command line and

by dn3500 6y ago

I ported parts of a TCP stack to the Cray X-MP in the 1980s. It was so fast that at first I thought it was broken. Hit <return> on the compile command line and the prompt would come right back almost immediately.

dboreham 6y ago
...and in red, since it was going so fast.
- freeqaz 6y ago
  Or would it be shifted to be more blue??
  - marcodiego 6y ago
    Only if it was getting closer.
    - AnimalMuppet 6y ago
      It's the reply from the machine to you. It should be blue.
      - cgriswald 6y ago
        The message is always heading in the same direction. The relevant variable is the movement between the machine and you. You should probably hope it’s red because if the machine is fast enough that the blue shift is perceivable to the human eye, it might be the last thing you see.
IncRnd 6y ago
I used to program a Y-MP2 around 1990. That had an SSD and was the abolute fastest machine I had ever used at that time.
- MrBuddyCasino 6y ago
  > 1990 > SSD Can you elaborate?
  - lvh 6y ago
    1990 is probably a little early for something flash-based, but battery-backed DRAM- and CCD-based devices existed before that.
    - rleigh 6y ago
      Even Sinclair in the 80s had a prototype for the QL, which didn't go into production: http://www.computinghistory.org.uk/det/31270/Sinclair%20QL%20Prototype%20Wafer%20Memory%20Expansion/ http://www.computinghistory.org.uk/det/31270/Sinclair%20QL%2...
  - IncRnd 6y ago
    It was at the NSCEE (National Supercomputing Center for Energy and the Environment) installation at UNLV for Yucca mountain. There were two vector processors and an amazing 5GB SSD. The OS was UNICOS, a successor of System V and COS (Cray OS), and a user was actually fully swapped out on context switches. The SSD wasn't new by any means. A decade earlier the Cray-1M optionally could have had an SSD.
    - lvh 6y ago
      To be clear, we're talking about battery-backed RAM (specifically MOS RAM) there, right?
      - IncRnd 6y ago
        I don't know how the solid state storage was implemented. There are bunches of Cray brochures on the Internet that might have that information.
        6y ago
lakkal 6y ago
One of my professors joked that they were so fast, they could run an infinite loop in 2.2 seconds.

by dn3500 6y ago

dboreham 6y ago

...and in red, since it was going so fast.

freeqaz 6y ago
Or would it be shifted to be more blue??
- marcodiego 6y ago
  Only if it was getting closer.
  - AnimalMuppet 6y ago
    It's the reply from the machine to you. It should be blue.
    - cgriswald 6y ago
      The message is always heading in the same direction. The relevant variable is the movement between the machine and you. You should probably hope it’s red because if the machine is fast enough that the blue shift is perceivable to the human eye, it might be the last thing you see.

IncRnd 6y ago

I used to program a Y-MP2 around 1990. That had an SSD and was the abolute fastest machine I had ever used at that time.

MrBuddyCasino 6y ago
> 1990 > SSD Can you elaborate?
- lvh 6y ago
  1990 is probably a little early for something flash-based, but battery-backed DRAM- and CCD-based devices existed before that.
  - rleigh 6y ago
    Even Sinclair in the 80s had a prototype for the QL, which didn't go into production: http://www.computinghistory.org.uk/det/31270/Sinclair%20QL%20Prototype%20Wafer%20Memory%20Expansion/ http://www.computinghistory.org.uk/det/31270/Sinclair%20QL%2...
- IncRnd 6y ago
  It was at the NSCEE (National Supercomputing Center for Energy and the Environment) installation at UNLV for Yucca mountain. There were two vector processors and an amazing 5GB SSD. The OS was UNICOS, a successor of System V and COS (Cray OS), and a user was actually fully swapped out on context switches. The SSD wasn't new by any means. A decade earlier the Cray-1M optionally could have had an SSD.
  - lvh 6y ago
    To be clear, we're talking about battery-backed RAM (specifically MOS RAM) there, right?
    - IncRnd 6y ago
      I don't know how the solid state storage was implemented. There are bunches of Cray brochures on the Internet that might have that information.
      - 6y ago

lakkal 6y ago

One of my professors joked that they were so fast, they could run an infinite loop in 2.2 seconds.