Category: appearances

Places where I appear in person

Speaking at the Embedded Conference Scandinavia

ecslogo

On November 3, 2015, I will give a presentation at the Embedded Conference Scandinavia about simulating IoT systems. The conference program can be found at http://www.svenskelektronik.se/ECS/ECS15/Program.html, with my session detailed at http://www.svenskelektronik.se/ECS/ECS15/Program/IoT%20Development.html.

My topic is how to realistically simulate very large IoT networks for software testing and system development. This is a fun field where I have spent significant time recently. Only a couple of weeks ago,  I tried my hand simulating a 1000-node network. Which worked! I had 1000 ARM-based nodes running VxWorks running at the same time, inside a single Simics process, and at speeds close to real time! It did use some 55GB of RAM, which I think is a personal record for largest use of system resources from a single process. Still, it only took a dozen processors to do it.

Security for IoT Panel at the DAC 2015 – Can Security Gate your Release?

etcI had the great honor to be on a panel discussing IoT Security at the DAC back in June. The panel was part of the Embedded Techcon event that took place essentially as a little embedded corner inside the DAC – it was held in a couple of conference rooms next to the regular DAC sessions, and attendees were also mostly attending the DAC in general. Not a bad idea for meshing embedded and hardware design. The panel was a great one, and David Kleidermacher from Blackberry gave me a great take-away: unless security is allowed to gate releases of products, it is hard to think you take security seriously.

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Speaking about Continuous Integration at the Embedded World Conference 2015

Embedded World 2015 Logo

I am going to be speaking at the 2015 Embedded World Conference in Nürnberg, Germany. My talk is about Continuous Integration for embedded systems, and in particular how to enable it using simulation technology such as Simics.

My talk is at 16.00 to 16.30, in session 03/II, Software Quality I – Design & Verification Methods.

 

 

S4D 2012 – Notes

Last week, I attended my fourth System, Software, SoC and Silicon Degug conference (S4D) in a row. I think the silicon part is getting less attention these days, most of the papers were on how to debug software. Often with the help of hardware, and with an angle to how software runs in SoCs and systems. I presented a paper reviewing the technology and history of reverse debugging, which went down pretty well.

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Paper & Talk at S4D 2012: Reverse Debug

I am going to the S4D conference for the third year in a row. This year, I have a paper on reverse debugging, reviewing the technology, products, and history of the idea. I will probably write a longer blog post after the conference, interesting things tend to come up.

Speaking at Embedded Conference Scandinavia

I am going to be talking about how to transport bugs with virtual platform checkpoints, in the Software Tools track at the Embedded Conference Scandinavia, on October 3, 2012, in Stockholm (Sweden). The ECS is a nice event, and there are several tracks to choose from both on October 2 and October 3. In addition to the tracks, Jan Bosch from Chalmers is going to present a keynote that I am sure will be very entertaining (see my notes from a presentation he did in Göteborg last year).

 

Speaking at SiCS Multicore Day 2012

I am scheduled to talk at the SiCS multicore day 2012 (like I did back in 2009 and 2008). The event takes palce on September 13, at SiCS in Kista. My topic will be on System-Level Debug – how we can make debuggers that work for big systems.

This year, the multicore day is part of a bigger Software Week event, which also covers cloud and internet of things. See you there!

Youtube Movie on Reverse Execution (and a small bit of Reverse Debug)

We just uploaded a short movie about reverse execution and reverse debugging to Youtube, to the Wind River official channel. In the short time available in this demo, we really only show reverse execution. Reverse debug, as I define it, is not used much at all, as explaining what goes on when you start to put breakpoints into a program and analyze its behavior takes a surprising amount of time.

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S4D 2010

Looks like S4D (and the co-located FDL) is becoming my most regular conference. S4D is a very interactive event. With some 20 to 30 people in the room, many of them also presenting papers at the conference, it turns into a workshop at its best. There were plenty of discussion going on during sessions and the breaks, and I think we all got new insights and ideas.

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Additional Notes on Transporting Bugs with Checkpoints

This post features some additional notes on the topic of transporting bugs with checkpoints, which is the subject of a paper at the S4D 2010 conference.

The idea of transporting bugs with checkpoints is some ways obvious. If you have a checkpoint of a state, of course you move it. Right? However, changing how you think about reporting bugs takes time. There are also some practical issues to be resolved. The S4D paper goes into some of the aspects of making checkpointing practical.

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S4D Paper on Transporting Bugs with Checkpoints

I have a paper about “Transporting Bugs with Checkpoints” to be presented at the S4D (System, Software, SoC and Silicon Debug) conference in Southampton, UK, on September 15 and 16, 2010. The core concept presented is to leverage Simics checkpointing to capture and move a bug from the bug reporter to the responsible developer. It is a fairly simple idea, but getting it to work efficiently does require that some things are done right. See the longer Wind River blog posting about this topic for a few more details.

Matt’s Today in History: System/360

I am a regular listener to the Matt’s Today in History podcast. When Matt asked for contributions for this spring (in order to meet a goal of 500 podcasts before Summer) I did give some thought to what I could contribute. Looking over some books, I found one suitable Spring date: the launch of the IBM System/360 back in 1964. The resulting podcast is now live at Matt’s Today in History.

Please be kind to any mistakes… I am trying to paint a broad picture for a computer-history-ignorant audience here.

Kindergarten Robot

lego mindstorms nxt2One of my little projects while on parental leave has been to play around with my Lego Mindstorms NXT 2.0 robotics kit. Apart from being fun for a serious dad like myself, I always had in mind how I could use it with kids to get them interested in technology.

When I was a PhD student in Uppsala back around 2000, we bought a pile of the Lego Mindstorms RCX kits, for use in real-time courses. Obviously, the students loved the opportunity to play with Lego (including the few females). What was less obvious and much more interesting was what happened when we brought in a bunch of children from a local kindergarten to visit — they really took a liking to our little yellow robots running around a classroom. They treated the robots as little animals, wondering what they were doing and why…

With that in mind, I decided to try to reprise this myself with my own son and his kindergarten friends. Last week, I took my robot kit with me and went to meet the kids.

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