Moderator: Ras
https://www.sifive.com/press/nasa-selec ... -ecosystemNASA Selects SiFive and Makes RISC-V the Go-to Ecosystem for Future Space Missions
SiFive X280 delivers 100x increase in computational capability with leading power efficiency, fault tolerance, and compute flexibility to propel next-generation planetary and surface missions
[...]
AFAIK the Space Shuttle had the Motorola 68k on board? And the IBM Thinkpad was once the first laptop certified to use in space, or alike, and ESA uses an SPARC v7/V8 core@125MHz-1.5GHz , so it might not be that hard to crack with the RISC-V vector-unit.SiFive RISC-V cores, to deliver 100x the computational capability of today’s space computers.
From https://en.wikipedia.org/wiki/IBM_System/4_PiThe IBM System/4 Pi is a family of avionics computers used, in various versions, on the F-15 Eagle fighter, E-3 Sentry AWACS, Harpoon Missile, NASA's Skylab, MOL, and the Space Shuttle, as well as other aircraft. Development began in 1965, deliveries in 1967.[1]
It descends from the approach used in the System/360 mainframe family of computers, in which the members of the family were intended for use in many varied user applications. (This is expressed in the name: there are 4π steradians in a sphere, just as there are 360 degrees in a circle.[2]) Previously, custom computers had been designed for each aerospace application, which was extremely costly.
Haha, thx, core memory, transistor-transistor-logic - indeed, ancientEelco de Groot wrote: ↑Sun Sep 11, 2022 5:13 pm As far as I know, the processors they used for the Space Shuttle, computationally were far more ancient than the 68000. Basically it is IBM 360 hardware.
[..]
but probably reliable, according to your link 0.48 MIPS on average, 68k@8Mhz made ~1 MIPS, so it gets close, or alike...https://www.sifive.com/blog/introductio ... gence-x280The SiFive Intelligence Extensions enable the X280
processor to achieve a best-in-class 4.5 TFLOPs
(bfloat16 MatMul) or 9.2 TOPS (INT8 MatMul)
supporting the broadest range of ML workloads and
AI computation needs. The SiFive Intelligence
acceleration gives a 6x improvement over that
achievable with a vector processor running RISC-V
Vector ISA 1.0.
--Key Features include:
64-bit RISC-V ISA
SiFive Intelligence Extensions, which are custom instructions that accelerate AI/ML performance critical operations
Multi-core, multi-cluster processor configuration options, with up to 8 cores
Loosely coupled vector computation pipeline and ALU implementing RISC-V Vector extension version 1.0
Support for multiple data types
512-bit vector register length
256-bit Vector ALU and Load/Store architecture
Decoupled scalar and vector pipelines for optimum parallel execution of scalar and vector computation
Virtual memory support, with up to 48-bit addressing
High performance, flexible connectivity to SoC peripherals
Hehehe, here we go, with 68k in Space Shuttle as engine controller (a mid-80s update)Eelco de Groot wrote: ↑Sun Sep 11, 2022 5:13 pm As far as I know, the processors they used for the Space Shuttle, computationally were far more ancient than the 68000. Basically it is IBM 360 hardware.
[...]
And https://history.nasa.gov/computers/Ch4-3.html