http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.pnghttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/Anders Hejlsberg and Guy Steele: Concurrency and Language Designhttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/en-usMon, 08 Dec 2008 07:33:49 GMTMon, 08 Dec 2008 07:33:49 GMTEvNet (EvNet, Version=1.0.3608.3122, Culture=neutral, PublicKeyToken=null)Assuming that someone writes software that super-concurrent, is there a way to verify that that is the case without actually trying it on a multi-processor computer?<br><br>For instance, let's say that I have a quad core computer, and I write software that scales amazingly to 4 threads.&nbsp; However, my intent was to actually scale to 8 or 16 or 32 threads, but I don't have the machine to test it.<br><br>Is there some kind of execution path analysis tool (perhaps Intel can help with this), which analyzes the binary code (or may be source) and says, "yes, your code scales to 256 threads, with the following data set, but no more than that"<br><br>Is there any research done in this area that anyone knows about?<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=447589Mon, 08 Dec 2008 07:33:49 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4475890http://channel9.msdn.com/447589/WebViewBug.aspx?EVT=0Assuming that someone writes software that super-concurrent, is there a way to verify that that is the case without actually trying it on a multi-processor computer?For instance, let's say that I have a quad core computer, and I write software that scales amazingly to 4 threads.&nbsp; However, my&#8230;kasajian0http://channel9.msdn.com/447589/Trackback.aspxThat point about a base language that can support different syntaxes though library-like extensions - surely that has to be the way to go, in the long term?<BR><BR>We already have an ever-growing range of APIs in the CLR to let us dynamically compile code snippets into executables. The C# and VB compilers are "libraries" in that sense. They need to be reusable in different contexts, e.g. partial compilation for IDE intellisense as well as the "real" compilation process. And so why not implement those two languages as AST processors on the same general compilation engine. And then introduce a way to let you switch syntax libraries in the middle of a file, or in an expression.<BR>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=445154Mon, 24 Nov 2008 15:35:10 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4451540http://channel9.msdn.com/445154/WebViewBug.aspx?EVT=0That point about a base language that can support different syntaxes though library-like extensions - surely that has to be the way to go, in the long term?We already have an ever-growing range of APIs in the CLR to let us dynamically compile code snippets into executables. The C# and VB compilers&#8230;Daniel Earwicker0http://channel9.msdn.com/445154/Trackback.aspxAnders used to be a Distinguished Engineer. But I think they changed the title to Technical Fellow when one of the Distinguished Engineers had a chair thrown at him.<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=443422Sun, 16 Nov 2008 18:40:39 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4434220http://channel9.msdn.com/443422/WebViewBug.aspx?EVT=0Anders used to be a Distinguished Engineer. But I think they changed the title to Technical Fellow when one of the Distinguished Engineers had a chair thrown at him.rbirkby0http://channel9.msdn.com/443422/Trackback.aspx<P>I walked away from the video while it was running, and was suddenly struck by Guy Steel's voice... Carl Sagan talking computers.</P> <P>...LOL.</P>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=432024Thu, 09 Oct 2008 09:10:28 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4320240http://channel9.msdn.com/432024/WebViewBug.aspx?EVT=0I walked away from the video while it was running, and was suddenly struck by Guy Steel's voice... Carl Sagan talking computers. ...LOL.Elmer0http://channel9.msdn.com/432024/Trackback.aspxAwesome awesome content! Thanks for doing this Charles!http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431745Wed, 08 Oct 2008 04:12:46 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4317450http://channel9.msdn.com/431745/WebViewBug.aspx?EVT=0Awesome awesome content! Thanks for doing this Charles!Christian Liensberger0http://channel9.msdn.com/431745/Trackback.aspxIf you would like to see more videos with Anders Hejlsberg you can find <a title="The Future of Programming Languages" href="http://channel9.msdn.com%20http://blog.jaoo.dk/2008/10/07/the-future-of-programming-languages />a video of his JAOO keynote</a> at the<a title="The JAOO Community Blog" href="http://blog.jaoo.dk"> JAOO Community Blog</a>. The blog also features <a title="Interview with Anders Hejlsberg" href="http://blog.jaoo.dk/2008/09/29/linqin-up-with-anders-hejlsberg/">an interview with Anders Hejlsberg</a>.<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431627Tue, 07 Oct 2008 22:58:23 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4316270http://channel9.msdn.com/431627/WebViewBug.aspx?EVT=0If you would like to see more videos with Anders Hejlsberg you can find a video of his JAOO keynote at the JAOO Community Blog. The blog also features an interview with Anders Hejlsberg.Anne Therese Hansen0http://channel9.msdn.com/431627/Trackback.aspxI thought both seemed to extol F# and pretty much say "if you want functional, then <i>that (</i>F#) is what you want to use".<br><br>The appeal of functional programming to Anders (it seems) is when it comes to parallelize your code. The task parallel library is already working on a parallel for-loop. The next logical step in code, is any method where a time consuming task is present (work need to be done) like your lambdas. I think that that is why Anders extols functional programming, insofar as "the elephant in the room" and functional programming being used as a tool in concurrency issues.<br><br>I therefore see C# developing as a hybrid language or creating a hybrid developer, whereby if any parallel tasks need to be done, the best practice in your application is to use functional constructs, as they can be made to run in parallel. Learning F# is going to be the best way for .NET developers to leverage their existing .NET knowledge, without resorting to the extremes and complexity of Haskell.<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431521Tue, 07 Oct 2008 10:30:54 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4315210http://channel9.msdn.com/431521/WebViewBug.aspx?EVT=0I thought both seemed to extol F# and pretty much say "if you want functional, then that (F#) is what you want to use".The appeal of functional programming to Anders (it seems) is when it comes to parallelize your code. The task parallel library is already working on a parallel for-loop. The next&#8230;vesuvius0http://channel9.msdn.com/431521/Trackback.aspxGreat points. In fact, this is exactly what we are doing with Parallel Extensions for .NET and language/runtime changes in our stack. As Anders states in the video we don't expect developers to throw away their current toolset. Instead, we'll add new constructs to the existing tools to make writing concurrent code productive and effective. Of course, a fair amount of magic needs to happen to pull this off and Anders et al are working very hard at it!<BR><BR>Chttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431517Tue, 07 Oct 2008 09:17:00 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4315170http://channel9.msdn.com/431517/WebViewBug.aspx?EVT=0Great points. In fact, this is exactly what we are doing with Parallel Extensions for .NET and language/runtime changes in our stack. As Anders states in the video we don't expect developers to throw away their current toolset. Instead, we'll add new constructs to the existing tools to make writing&#8230;Charles0http://channel9.msdn.com/431517/Trackback.aspxGreat Discussion. I tend to think the more functional stuff added to C#(Anders seems to suggest that!), the more polluted it's going to be. C# shouldn't be answers to all the problems, it's about time they don't try to make it that way!<br><br>No matter how much functional programming is useful, current languages will still be alive and kicking!<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431516Tue, 07 Oct 2008 09:11:16 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4315160http://channel9.msdn.com/431516/WebViewBug.aspx?EVT=0Great Discussion. I tend to think the more functional stuff added to C#(Anders seems to suggest that!), the more polluted it's going to be. C# shouldn't be answers to all the problems, it's about time they don't try to make it that way!No matter how much functional programming is useful, current&#8230;Parag Mehta0http://channel9.msdn.com/431516/Trackback.aspxWhat a completely illuminating and edifying interview. I can say with certainty that I will watch this again and again and again.<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431508Tue, 07 Oct 2008 08:06:58 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4315080http://channel9.msdn.com/431508/WebViewBug.aspx?EVT=0What a completely illuminating and edifying interview. I can say with certainty that I will watch this again and again and again.vesuvius0http://channel9.msdn.com/431508/Trackback.aspxWithout a doubt it's very exciting to focus on the end goal of shiny new languages and functionally 'pure' (or at least side-effect annotated) frameworks but over the next 5 years I'd really like to see Microsoft et al spend some of their community education budget on giving direction as to how we should transition our existing deeply object-orientated architectures to prepare for all this. How do we find that sweet spot of being more explicit about mutation without totally giving up on encapsulation. Should we start annotating mutations? Surely Microsoft should provide those annotation definitions so we can use a common standard. Will we get short term tool / framework / runtime changes to support the <EM>transition</EM> and not just the <EM>rewrite</EM> scenario.<BR><BR>Don't get me wrong, I'm not being anti-change here, but any pitch to management about adopting this stuff needs to include a technically strong discussion of how architectures can be changed over time in such a way that they don't immediately and&nbsp;severely impinge on developer productivity. There is clearly more to the problem than just 'pepper your code with LINQ query statements' (I'm being deliberately provocative, not as an attempt to troll but because I think this part of the story is currently missing.)http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431492Tue, 07 Oct 2008 06:04:12 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4314920http://channel9.msdn.com/431492/WebViewBug.aspx?EVT=0Without a doubt it's very exciting to focus on the end goal of shiny new languages and functionally 'pure' (or at least side-effect annotated) frameworks but over the next 5 years I'd really like to see Microsoft et al spend some of their community education budget on giving direction as to how we&#8230;Tom Kirby-Green0http://channel9.msdn.com/431492/Trackback.aspxOH WOW!&nbsp; IT'S GLS!!!<BR><BR>Guy Steele was my comparative languages professor back at CMU, he was hands down one of the best teachers I've ever had.<BR><BR>The man's simply amazing.<BR>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431485Tue, 07 Oct 2008 04:27:07 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4314850http://channel9.msdn.com/431485/WebViewBug.aspx?EVT=0OH WOW!&nbsp; IT'S GLS!!!Guy Steele was my comparative languages professor back at CMU, he was hands down one of the best teachers I've ever had.The man's simply amazing.LarryOsterman0http://channel9.msdn.com/431485/Trackback.aspxGreat video.http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431453Mon, 06 Oct 2008 21:25:58 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4314530http://channel9.msdn.com/431453/WebViewBug.aspx?EVT=0Great video.stevo_0http://channel9.msdn.com/431453/Trackback.aspx<P>Awesome! Can't get enough of the videos featuring Anders, they're always thought provoking and insightful and right now are&nbsp;the perfect distraction from grim market news stories.</P>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431412Mon, 06 Oct 2008 18:00:11 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4314120http://channel9.msdn.com/431412/WebViewBug.aspx?EVT=0Awesome! Can't get enough of the videos featuring Anders, they're always thought provoking and insightful and right now are&nbsp;the perfect distraction from grim market news stories.Tom Kirby-Green0http://channel9.msdn.com/431412/Trackback.aspxCharles, you rule like usual. I can't WAIT to watch this video. JAOO and OOPSLA are two of the conferences I'm determined to make it to some time. I love anytime these videos start coming out :).http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431407Mon, 06 Oct 2008 17:31:29 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4314070http://channel9.msdn.com/431407/WebViewBug.aspx?EVT=0Charles, you rule like usual. I can't WAIT to watch this video. JAOO and OOPSLA are two of the conferences I'm determined to make it to some time. I love anytime these videos start coming out :).Jason Olson0http://channel9.msdn.com/431407/Trackback.aspx<P>Technical Fellow at Microsoft is the highest ranking engineering title. In essence, Anders is as senior as a VP. Think of it as "Grand Master Engineer" :)<BR><BR>BTW, it was great seeing you at JAOO Charlie.<BR>C</P>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431371Mon, 06 Oct 2008 14:33:29 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4313710http://channel9.msdn.com/431371/WebViewBug.aspx?EVT=0Technical Fellow at Microsoft is the highest ranking engineering title. In essence, Anders is as senior as a VP. Think of it as "Grand Master Engineer" :)BTW, it was great seeing you at JAOO Charlie.CCharles0http://channel9.msdn.com/431371/Trackback.aspxAwesome, Jaoo content! :D<div><br></div><div>I'm wondering about their titles. What lies behind "Technical fellow"? I thought that was a joke.</div>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431370Mon, 06 Oct 2008 14:27:17 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4313700http://channel9.msdn.com/431370/WebViewBug.aspx?EVT=0Awesome, Jaoo content! :DI'm wondering about their titles. What lies behind "Technical fellow"? I thought that was a joke.Chadk0http://channel9.msdn.com/431370/Trackback.aspx:) <BR><BR>Keep on downloading,<BR>Chttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431364Mon, 06 Oct 2008 13:43:42 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4313640http://channel9.msdn.com/431364/WebViewBug.aspx?EVT=0:) Keep on downloading,CCharles0http://channel9.msdn.com/431364/Trackback.aspxOctober seems set to be a month where my download manager is abused by Channel 9, starting with JAOO and ending up at PDC.<br><br>What a way to begin!<br>http://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=431362Mon, 06 Oct 2008 13:34:47 GMThttp://channel9.msdn.com/posts/Charles/Anders-Hejlsberg-and-Guy-Steele-Concurrency-and-Language-Design/?CommentID=4313620http://channel9.msdn.com/431362/WebViewBug.aspx?EVT=0October seems set to be a month where my download manager is abused by Channel 9, starting with JAOO and ending up at PDC.What a way to begin!vesuvius0http://channel9.msdn.com/431362/Trackback.aspx