Tilera sees sense in the server wars, puts just 36 cores in its newest processor

Engadget

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@noXLar

Tilera Cpus are MIPS derived and not PowerPC

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@noXLar

Nice, but it seems to be MIPS based, currently running only Linux.

There are relativly new and advanced PPC CPUs but most of them (like Cell)
remain for military, server and high end use.

2 core PowerQUICC http://en.wikipedia.org/wiki/PowerQUICC
2 core AMCC CPU`s http://www.apm.com/products/embedded/multicore460/apm86290/
4 core FreeScale http://en.wikipedia.org/wiki/PowerPC_e6500
8 cores Power7 http://en.wikipedia.org/wiki/POWER7
8 cores FreeScale http://en.wikipedia.org/wiki/QorIQ
16 cores IBM A2 http://en.wikipedia.org/wiki/PowerPC_A2

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Not to mention Amiga currently only makes use of only one core...

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@vox

Quote:

8 cores Power7 http://en.wikipedia.org/wiki/POWER7 16 cores IBM A2 http://en.wikipedia.org/wiki/PowerPC_A2

Power Architecture and PowerPC (PPC) are not the same.
Related? Yes.
Interchangeable? No.

But the rest of the list offers plenty of options if A-Eon decide to Stick with PPC.

Last edited by _Steve_ on 31-Jan-2012 at 12:46 AM.
Last edited by agami on 30-Jan-2012 at 11:59 PM.
Last edited by agami on 30-Jan-2012 at 11:58 PM.

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@agami

Quote:

Power Architecture and PowerPC (PPC) are not the same. Related? Yes. Interchangeable? No.

To my understanding, to do a port of PowerPC code to POWER architectures isn`t hard thing to do. POWER Is kind of 64 bit PowerPC architecture and that is a major obstacle (AmigaOS 4 is 32 bit only).

However, its good PPC CPU`s are made and improved.

Quote:

@Leo [quote]Not to mention Amiga currently only makes use of only one core...[/quote

Hope after X1000 dual core (and better) support must come!

Last edited by vox on 31-Jan-2012 at 01:27 AM.

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@noXLar

My favorite analysis of the Tilera is thinking about it like this, 36 rooms in a house with only 1 bathroom. The rooms are the cores and the bathroom is the memory bus.

@agami

There is no more PowerPC. It's all POWER Architecture since a few years back.

There was never a real difference anyway, just some chips were targetted for Personal Computers. Since noone targets that market specifically anymore, it doesn't make sense to keep talking about PowerPC.

For instance, PowerPC970 was a single core Power4 with less cache. PowerPC601 === POWER1.

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@agami

hmm wasen't 68060 less compatible with 68000&68020 same famlily
i know the 68000 did't have mmu&fpu and 68060 did have fpu intergraded, but is't all about patches an optimizing? is't ppc and power cpu's risc cpu's, shouldt there atleast be some of the same risc family.. just patches and so on.. no need too rewrite the whole code.. is it not?

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@Leo

Quote:

Not to mention Amiga currently only makes use of only one core...

And most software have problems making use of multiple cores anyway. It'll take many more years before current "consumer" software makes efficient use of even 4 cores other than for a small number of easily parallelizable tasks...

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about power and PPC:

There seems to be some difference in the core functionality of power based and PPC based chips.
IIRC, Frieden brothers have said that PA6T is basically a POWER core chip, and requires extra work in kernel.
Also there's mention in PA6T documentation how some PPC things are glued(do not remember what word was used exactly) to power core for PA6T (IIRC, similar to PP970).

I think for example PPC467 (IBM,Axxia,etc...) chips are power core based and PPC465(AMCC) chips are PPC core based.
Freescale chips have the PPC heritage as well.

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@noXLar

Its not like with 68k where CPU`s had problems and incompatiblities,
but PA Semi is 64 bit POWER cheap while all the prevous were 32-bit ones,
and assume there was some adjustment here needed.

As well as most of newer POWER ones are 64-bit, except AMCC.

Yes, POWER is IBM name for PPC chips but since POWER3 they went 64 bit.

http://en.wikipedia.org/wiki/Power_Architecture
http://en.wikipedia.org/wiki/IBM_POWER
http://en.wikipedia.org/wiki/PWRficient

So, now we got the POWER!

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Doesn't all the 64-bit CPUs, i.e. POWER, have a 32-bit mode and support the 32-bit Power(PC) instruction set? The PA6T obviously does.

About multi-core: Web browsers would benefit a lot from multiple cores since the load of parsing code, decoding images and running the TCP/IP stack can be offloaded to different cores by the OS as it sees fit.

Make used when building project can also already be told to run multi-threaded with the -j flag which immediatly will make use of more cores. Not to mention being able to for example (re)encode a video file while watching another one without any slowdown, or something like that.

Single apps don't have to make extensive use of this to make it useful.

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@Deniil715

Quote:

Doesn't all the 64-bit CPUs, i.e. POWER, have a 32-bit mode and support the 32-bit Power(PC) instruction set? The PA6T obviously does

Yes, but OS going 64 bit should offer some advancements in speed and adress space, not way too much as proven with x64, but why not having 64 bit kernel (exec) and drivers in the future, since 32 bit chips are almost out, like with x86 arhitecture.

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@vox

Quote:

vox wrote: @Deniil715 Quote: Doesn't all the 64-bit CPUs, i.e. POWER, have a 32-bit mode and support the 32-bit Power(PC) instruction set? The PA6T obviously does Yes, but OS going 64 bit should offer some advancements in speed and adress space, not way too much as proven with x64, but why not having 64 bit kernel (exec) and drivers in the future, since 32 bit chips are almost out, like with x86 arhitecture.

As far as I understood it, ATM 64bit is only faster if everything is kept in RAM.
All data being 64bit means the amount of ones and zeros which has to be loaded (from disk) and processed is several times more.

Would be nice if it was kind of dynamic changing from 64bit to 32bit which each file.. hahaha!

I can confirm that a 32bit linux distro (inux-mint and ubuntu) is much snappier than the 64bit version on the same machine.

Last edited by Amigo1 on 01-Feb-2012 at 08:36 AM.

my wish:
AOSs should enable 64bit memory address space ASAP to use more than 2GB RAM.
It would be enough for me if only 2GB can be seen by a application (I would prefer 4GB but I do not know if it's easy to do).
The rest of the RAM (16-32GB RAM space of A1X1000) could then be used as SWAP+RAM+diskCache etc.

Would it be more doable than moving fully to 64bit?

Last edited by KimmoK on 01-Feb-2012 at 09:40 AM.

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Not really important, but can anyone tell me why there's the 2gig limit for amigaos rather than the 4gig of most 32bit systems? It's obviously an OS issue, but why is it restricted to 31bit addressable space?

@fishy_fis

Hadn't it something to do with the fact the remaining hal address space has to be dedicated to devices?

Or am I misremembering?

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