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by scidata
Fri Feb 07, 2020 6:31 pm
Forum: Networking and servers
Topic: Distributed Compute via BROWSER
Replies: 2
Views: 198

Re: Distributed Compute via BROWSER

I have a small stack of various Pis, which I've used for some DCP testing. Don't have solid quantitative stuff, but I can say that the Pi4 is much faster than previous models (although draws more current and produces more heat). You're looking at 2-3 days / credit unit depending on how many cores & ...
by scidata
Fri Feb 07, 2020 3:21 pm
Forum: Networking and servers
Topic: Distributed Compute via BROWSER
Replies: 2
Views: 198

Distributed Compute via BROWSER

Like many others, I have enjoyed networking and clustering Pis. It's a bit of a hill to climb for newbies though, especially getting down into the weeds on Linux. For those who simply wish to participate in a vast distributed compute effort, with minimal hassle, and even earn credits, all from withi...
by scidata
Mon Jun 06, 2016 4:32 pm
Forum: Off topic discussion
Topic: Future Processors
Replies: 6
Views: 2314

Re: Future Processors

Moore's Law is sort of a side issue. The real crux of the matter is the von Neumann bottleneck, which requires data to be pushed from memory to processor over a bus. One of my favourite things about the Pi is that it drives interest in computer science, not just sensors, bells, and whistles. The Pi ...
by scidata
Mon Jun 06, 2016 1:53 pm
Forum: Off topic discussion
Topic: Future Processors
Replies: 6
Views: 2314

Future Processors

This looks like a good choice for the Pi v6
http://venturebeat.com/2016/06/06/forme ... y-knuedge/
by scidata
Sat Apr 09, 2016 7:28 pm
Forum: General discussion
Topic: SETI@home 8
Replies: 0
Views: 552

SETI@home 8

It runs on a Pi 3, but is very slow and hot - I would avoid it for the time being.
by scidata
Sat Apr 02, 2016 5:23 pm
Forum: Troubleshooting
Topic: Problem with Certificates in Jessie
Replies: 25
Views: 3974

Re: Problem with Certificates in Jessie

I too am a fan of Einstein@home (user Muskoka https://einstein.phys.uwm.edu/top_users ... t&offset=0).
I tried both Raspbian and Ubuntu MATE - same problem. I'll just wait for a fix.
by scidata
Fri Feb 12, 2016 5:37 pm
Forum: Off topic discussion
Topic: Big ARM systems
Replies: 12
Views: 2535

Re: Big ARM systems

From the Wolfram blog:
http://blog.wolfram.com/2016/02/11/on-t ... s-by-ligo/

BTW That blog has some good Raspberry Pi stories (I think Stephen Wolfram is a pi fan).
by scidata
Thu Feb 11, 2016 6:17 pm
Forum: Off topic discussion
Topic: Big ARM systems
Replies: 12
Views: 2535

Re: Big ARM systems

by scidata
Thu Feb 11, 2016 5:52 pm
Forum: Off topic discussion
Topic: Big ARM systems
Replies: 12
Views: 2535

Re: Big ARM systems

Actually, they may require both integer and float. I know the SKA is ruminating over this: http://www.hpcwire.com/2015/06/04/shining-a-light-on-skas-massive-data-processing-requirements/ There's also the problem of processing pixelated images, which requires simple integer algorithms. The pi makes a...
by scidata
Thu Feb 11, 2016 5:15 pm
Forum: Off topic discussion
Topic: Big ARM systems
Replies: 12
Views: 2535

Re: Big ARM systems

Many of the scientific projects (eg those huge desert telescopes) have integer-only crunching code. 64-bit integers can hold decent precision.
by scidata
Thu Feb 11, 2016 3:31 pm
Forum: Off topic discussion
Topic: Big ARM systems
Replies: 12
Views: 2535

Big ARM systems

The pi is at one end of the ARM spectrum. Here's the other end:
https://connect.innovateuk.org/web/high ... o-the-core
by scidata
Thu Nov 26, 2015 1:36 pm
Forum: General discussion
Topic: Meet Raspberry Pi Zero: the $5 computer
Replies: 539
Views: 117191

Re: Meet Raspberry Pi Zero: the $5 computer

A $5 computer that runs Prolog. It's a world unlike the one I grew up in.
by scidata
Tue Sep 01, 2015 4:48 pm
Forum: Advanced users
Topic: Using Pi clusters
Replies: 2
Views: 749

Re: Using Pi clusters

A few of the projects I've built since 2000 on the path to a pi cluster
http://www.scidata.ca/?page_id=1131

Python is the obvious choice for programming. IMHO, Forth is far, far better (but takes a brave school/teacher).
by scidata
Tue Aug 04, 2015 6:45 pm
Forum: General discussion
Topic: Curved Screens ?
Replies: 4
Views: 1586

Re: Curved Screens ?

The Pi (or any computer) won't be aware that monitors are curved rather than flat any more than a computer--back in the heyday of CRT monitors--could "see" the difference between a convex curved glass monitor or a flat glass one. Of course you're right, but these curved screens would be perfect for...
by scidata
Tue Aug 04, 2015 2:03 pm
Forum: General discussion
Topic: Curved Screens ?
Replies: 4
Views: 1586

Curved Screens ?

Any ideas on how one might assemble & drive multiple monitors of the new curved screen type? Multiple pi's are not a problem. Would be nice to construct a 180º (or 360º) (or even semi-spherical) display for things like Minecraft, Stellarium, etc
by scidata
Tue Jul 21, 2015 2:46 am
Forum: General discussion
Topic: Cross Platform GUI
Replies: 36
Views: 8700

Re: Cross Platform GUI

timrowledge wrote:Try Smalltalk.
and it's a natural for the pi
"People who are really serious about software should make their own hardware."
- Alan Kay
by scidata
Sat Jul 04, 2015 12:30 pm
Forum: Advanced users
Topic: Memristors
Replies: 0
Views: 402

Memristors

Has anyone played with memristors using the pi yet?
http://www.cnn.com/2015/02/26/tech/mci-eth-memristor/

Here's a 16-pin DIP for experimenters (I know nothing about that company, and certainly do not endorse it)
http://www.bioinspired.net/products-1.html
by scidata
Wed Jun 03, 2015 11:23 am
Forum: Off topic discussion
Topic: Hats off to the Moderators!
Replies: 14
Views: 1755

Re: Hats off to the Moderators!

Forum moderation is indeed a difficult and largely thankless task. It is also vital for open discussion.

However, care must be taken to not devolve into pedantry. It would be nice to see less discussion of basic wiring and more of the RPF's philosophy and pervasive computational thinking.
by scidata
Sun May 31, 2015 1:55 pm
Forum: Off topic discussion
Topic: Pi History
Replies: 1
Views: 632

Pi History

by scidata
Sun May 24, 2015 4:20 pm
Forum: General programming discussion
Topic: Programming club at school
Replies: 9
Views: 1663

Re: Programming club at school

That rules out 99.9% of all tutorials and documentation presently out there. That may be true - but desirable? To be clear I am not suggesting that sample code should not be reused. However in my opinion it is worth looking at how and why code works and if possible improving it. Roger Woollett I am...
by scidata
Sun May 24, 2015 1:16 pm
Forum: General programming discussion
Topic: Programming club at school
Replies: 9
Views: 1663

Re: Programming club at school

RogerW wrote: Don't just cut and paste other peoples code - understand what is going on
That rules out 99.9% of all tutorials and documentation presently out there.
by scidata
Thu May 14, 2015 8:09 pm
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 165448

Re: BASIC - more harmful than useful?

Pick/BASIC mentioned; I'm happy for the rest of the day.

BASIC is a waste of one's intellect. Nobody who ever spends time thinking about it, coding in it, or more specifically, writing BASIC interpreters will ever amount to anything. Just ask Gates and Allen.
by scidata
Sun Apr 19, 2015 3:12 pm
Forum: HATs and other add-ons
Topic: network speeds above 100 mbit
Replies: 17
Views: 34202

Re: network speeds above 100 mbit

A general purpose network traffic compressor might be a good project for a Pi. If it was an almost plug-n-play black box it would be very popular.
by scidata
Thu Apr 16, 2015 8:59 pm
Forum: General discussion
Topic: Chrome 43 and Web MIDI
Replies: 1
Views: 777

Chrome 43 and Web MIDI

MIDI for show control using the Pi seems a natural. I wonder if Chrome 43 is suitable for this.

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