25 years too late, *sighs* well here it goes.
1. On a multi core system, should you allow your kernel to be called in by several instances at the same time on different cores in a system where access to several interfaces is limited? (do not assume the system to be a homogeneous in design)
Flip side,
2. Should hardware if allowed to do so "DMA" while the processor might need the same resources.
Centralized vs Decentralized Processing
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CrypticalCode0
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CrypticalCode0
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Re: Centralized vs Decentralized Processing
Okay let's clarify this topic a bit.
On the first point
ARM has two chips in their portfolio which are suppose to work together.
ARM cortex-A15 and ARM cortex-A7.
Also IBM has it's Cell processor.
And even 15 years ago there were Amiga's with a MC68K version CPU and a PPC co-processor.
Berkus your completely right with your answer but it wasn't what i was looking for.
When programming for a system that can offload general code to a co processor is wise to do so?
On the first point
ARM has two chips in their portfolio which are suppose to work together.
ARM cortex-A15 and ARM cortex-A7.
Also IBM has it's Cell processor.
And even 15 years ago there were Amiga's with a MC68K version CPU and a PPC co-processor.
Berkus your completely right with your answer but it wasn't what i was looking for.
When programming for a system that can offload general code to a co processor is wise to do so?
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OSwhatever
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- Joined: Mon Jul 05, 2010 4:15 pm
Re: Centralized vs Decentralized Processing
This is a model I'm working on now for my OS. I have so called jobs which similar to the thread pool model. However, a job can be mapped to a completely different CPU cluster. For example if you have PowerPC as main CPU, it is possible to start jobs in specialized slave processors. This was the criteria I was working after in order to make it possible to spread the work load even to alien processors.CrypticalCode0 wrote:Okay let's clarify this topic a bit.
On the first point
ARM has two chips in their portfolio which are suppose to work together.
ARM cortex-A15 and ARM cortex-A7.
Also IBM has it's Cell processor.
And even 15 years ago there were Amiga's with a MC68K version CPU and a PPC co-processor.
Berkus your completely right with your answer but it wasn't what i was looking for.
When programming for a system that can offload general code to a co processor is wise to do so?
Also ARM Cortex A15 and A7 has the same memory architecture. I think they made it on purpose so that it could be easily adapted by Linux multicore support. This is the "big core" and "little core" strategy they have in mind.