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Embedded Software Blog

Posts tagged with 'Multicore'

30 Mar, 2011

Introducing OpenMCAPI

Posted by Hollis Blanchard

Hollis Blanchard

Mentor recently shared OpenMCAPI, our MCAPI implementation, with the world under an open source license (BSD). We’re proud of it because it was especially designed for portability, and while it’s sophisticated enough to offer advanced features like asynchronous communication, it’s simple enough that it can be easily understood and deployed on low-resource embedded systems. So what

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Multi-OS, MCAPI, Multicore, AMP, Linux

14 Feb, 2011

A different angle on multicore

Posted by Colin Walls

Colin Walls

Multicore is a hot topic at the moment. The subject crops up in numerous articles and I have written about it before. Surveys suggest that, before long, more than half of embedded designs will be implemented using multiple CPUs. There are broadly two hardware architectures: homogeneous multicore, where there are numerous identical cores, and heterogeneous multicore, where the cores differ in architecture.

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Networking, Multicore, Nucleus, Multi-OS

8 Feb, 2011

Who needs hardware designers?

Posted by Colin Walls

Colin Walls

I was recently asked to participate in a “panel” article in a UK electronics publication. The topic was the apparent decline importance of hardware design, over software design, in embedded systems. An interesting subject - I needed to be careful what I said, as I work for a company where 90% of my colleagues are hardware design specialists! The final piece can be seen here. I was sent a

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Multicore, RTOS, hardware design

14 Jan, 2011

Russ Klein I never cared for really long blog entries, so I’m splitting this up into a couple of posts. If you missed my last post you’ll want to go back and read it – or you’ll probably be hopelessly lost as we dive into my multi-core Sudoku solving dilemma. As you’ll recall, last time I took my clever Sudoku solver and ran it on an 8 core PPC design, and found I got a 3 X speed up. When I looked into why, it … Read More

ppc, profiling, Multicore

10 Jan, 2011

Russ Klein Yeah, it’s been a while since my last blog post. Of course, it’s all about the software, but in blogging it’s all about content – and keeping it fresh. So, here I am, with some fresh content. I took a new job here at Mentor and now I’m working in our Embedded Software Division. Despite being employed by a hardware tools company I think that this software stuff is going to be around for a while. … Read More

ppc, profiling, Multicore

29 Nov, 2010

Embedded software in 2011

Posted by Colin Walls

Colin Walls

Crystal ball gazing is a hazardous activity. However, this week I am going to take the risk. I have the honor of having been invited to present a keynote speech at a technical conference in Grenoble, France. Although I speak at conferences frequently, I normally have some constraints with the topic - normally I am presenting a paper, an abstract for which was submitted and accepted months before. On

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Multicore, User Interface, Low Power, Android, Inflexion

15 Nov, 2010

ARM Tech Con 2010

Posted by Colin Walls

Colin Walls

Last week I attended the ARM Technical Conference in Santa Clara, California. I am not sure how many years this event has been running, but it seems to be going from strength to strength. There was a change to the management company this year, but the event format was basically the same: a 3 day multiple-stream technical conference, with a selection of keynotes and an associated exhibition area. Obviously,

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Low Power, User Interface, MCAPI, ARM, Multicore, Android

23 Aug, 2010

Embedded Linux - why?

Posted by Colin Walls

Colin Walls

I have pondered before the appropriateness of Linux for embedded applications. My initial stance was clear enough: I could see very little sense in it. Why use a desktop operating system in such a completely different context? Over the years, the popularity of embedded Linux has increased, the technology of embedded systems has moved on and I have reappraised my views accordingly. With Mentor Embedded

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Multi-OS, Multicore, Linux

19 Jul, 2010

Electronics for the sick

Posted by Colin Walls

Colin Walls I have always for medical electronics interesting and I have blogged about it from time to time [here and here, for example]. Part of the reason for my interest stems from an occasional feeling that so much of the electronics around me is ultimately pointless. Many Mentor Embedded customers are making consumer devices, cell phones and other gadgets. Do we really need all of these? Aren’t they really … Read More

Android, User Interface, Linux, Networking, Inflexion UI, Low Power, Nucleus, Multicore, Medical, RTOS

12 Jul, 2010

AMP & SMP revisited

Posted by Colin Walls

Colin Walls Multicore continues to be a hot topic. Recent Web seminars, that we have run, were well attended, with lots of searching questions. I have discussed the subject here before, looking at the differences between AMP [Asymmetric Multi-Processing] and SMP [Symmetric Multi-Processing], for example. In various recent discussions with colleagues and customers, I have realized that there is more clarification … Read More

Nucleus, Multi-OS, AMP, Multicore, RTOS, SMP, MCAPI

21 Jun, 2010

MCAPI – lessons learned

Posted by Colin Walls

Colin Walls Some weeks ago, I wrote a blog entry on MCAPI, which seemed to provoke some interest. Last week we ran a Web seminar on this topic, in conjunction with the Multicore Association. This was well attended and seemed well received. You can access the archive recording here. We will be running another session soon, with timing oriented towards European attendees. I have done quite a few Web seminars now … Read More

Multi-OS, RTOS, Multicore, TCP/IP, Nucleus, MCAPI

7 Jun, 2010

AMP vs SMP

Posted by Colin Walls

Colin Walls It is becoming common for embedded designs to incorporate more than one CPU - maybe multiple cores on a chip or multiple chips on a board or any combination of these. Indeed, it has been suggested that it will soon be the norm to build systems that way. The use of multiple cores has spawned various technologies and, of course, much terminology and jargon. When new technical terms and acronyms appear, … Read More

Multicore, Multi-OS, MCAPI, Nucleus, Android, Linux

4 May, 2010

ESC Silicon Valley 2010

Posted by Colin Walls

Colin Walls As usual, I attended the Embedded Systems Conference in San Jose, CA last week. I guess it remains the foremost show in the embedded world in North America for sure - probably worldwide. My role was to make some presentations and look after the theater on the Mentor Embedded [our new branding for the Embedded Software Division of Mentor Graphics] booth. I did not have a chance to attend any conference … Read More

Multi-OS, Android, Multicore, Low Power, MCAPI

26 Apr, 2010

Introducing MCAPI

Posted by Colin Walls

Colin Walls I recently wrote about a “multi-core” development project that I worked on many years ago, including some details of how we managed communication between the CPUs. Things have moved on a lot since those days and multi-core is now rapidly becoming the norm in embedded designs. It is, therefore, unsurprising that a degree of standardization is being established. Specifically, the Multicore Association … Read More

MCAPI, TCP/IP, Multicore, Nucleus Kernel, Nucleus, Linux

19 Apr, 2010

Vintage multi-core - the IPC

Posted by Colin Walls

Colin Walls Last week, I wrote about a “multi-core” project that I was working on 30 years ago. To be fair, it was actually “multi-CPU” rather than “multi-core”, but many of the challenges were similar, as was the initial design decision to take the approach of distributing the processing capacity. It is interesting to draw a comparison between the system we were developing all those years ago and modern ideas … Read More

Nucleus, MCAPI, Linux, IPC, Multicore, Nucleus Kernel, Interprocessor Communication, Android

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