IPB
X   Site Message
(Message will auto close in 2 seconds)

Welcome Guest ( Log In | Register )

increasing computing power, number cruncher in space
Cugel
post May 4 2006, 09:57 AM
Post #1


Member
***

Group: Members
Posts: 153
Joined: 11-December 04
Member No.: 120



http://www.spacemart.com/reports/Space_Bas...mputations.html

This spaceflying 'puter does 1,000 Giga Operations-per-second and consumes only 80 Watt.
That is amazingly little, but for autonomous navigation for rovers it is still too much.
However, our military friends are working very hard to get the power consumption down, so we will get there!
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
helvick
post May 4 2006, 01:21 PM
Post #2


Dublin Correspondent
****

Group: Admin
Posts: 1799
Joined: 28-March 05
From: Celbridge, Ireland
Member No.: 220



QUOTE (Cugel @ May 4 2006, 10:57 AM) *
However, our military friends are working very hard to get the power consumption down, so we will get there!

That is a very impressive number but this is a fairly specialised device (Software defined radio) so you can't really take this and map it across to the operation of a general purpose cpu. Also the term "giga operations" per second would need to be better defined - those ops could be simple single bit "operations" carried out in parallel or they could be complex floating point operations.
2000 Giga single bit operations per second is about equivalent to a PS3\IBM Cell processor running at 2Ghz (128 bit x 8 core x 2Ghz =~ 2000 billion bits\sec). 2000 32 bit floating point ops per second by comparison would be about 250-1000 times "faster" than a general purpose top of the range current desktop CPU.

It's all a long way from the 20Mhz RAD6000's that the two MER's have on board in any case.
Go to the top of the page
 
+Quote Post

Posts in this topic
- Cugel   increasing computing power   May 4 2006, 09:57 AM
- - helvick   QUOTE (Cugel @ May 4 2006, 10:57 AM) Howe...   May 4 2006, 01:21 PM


Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 16th December 2024 - 05:36 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.