thank you for the article it helped me to install the compiler,

in fact it is compiling but not the execution

Here are the error message:

error while loading shared libraries: libiomp5.so: can not open shared object file: No such file or directory

Thank you

However, I think there are perfectly valid reasons why C++ would be chosen as a development language. I suppose one reason is actually why you wouldn’t want to choose C#: C# is a proprietary language, created by Microsoft, and Microsoft has no interest in developing a C# compiler and .NET runtime for platforms other than Windows. 3rd-party .NET implementations do exist for other platforms - the most prevalent being Mono - but Mono tends to be a step or two behind Microsoft’s implementation, and there is a chance that Microsoft could do something (legally or technologically) to impair 3rd-party implementations from being developed. This is in contrast to Java, where Sun develops the runtime for most platforms currently available. C++, on the other hand, is an open language, and compilers exist for almost all platforms.

Also, I have heard that even in C#/.NET projects, C++ is used where performance is very important. C and C++ also seem more common on devices with limited RAM and storage space, although I’ve heard of C#/.NET for those devices as well.

I suppose the thing that makes me hesitate most about C# is that it’s most strongly tied to Microsoft and Windows. If a company wants to develop software only for Windows, that’s fine, but sometimes it can be important to consider making your software available for other platforms as well too. That’s just another cost/benefit ratio to consider though: You have to consider your customers (or potential customers) and try to decide how much money the company could make by making the software just for Windows or also for Linux/Mac too.

For Business and Business automation; yep C# has reasonable penetration. But when it comes to Web, PHP still rules the world dude.

There’s only a small handful of real world scenarios in which these artificial benchmarks have even remote relevance to what you will actually be doing. Unless you’re writing quake 5 or a number crunching supercomputer client app, there aren’t many other cases where you will feel and perf loss between native and managed code. Funnily enough, C# is being trialed for cluster computing and has been found to have surprisingly little overhead.

Getting back to the real world, most applications written are fairly lax on perf and heavy on gui and logic. Most businesses that write them focus on the best cost/benefit value and realize that writing managed code is considerably faster and more maintainable than something like C++.

While working in the industry as a younger programmer, I found that many businesses still tend to avoid .net languages because their senior ‘old school’ programmers ‘hate’ the language without actually having written a single line of code in it. And I am very glad to see that as the number of younger programmers increases in the workplace, we are shifting that opinion towards objectivity and away from religious ‘i want to know what the cpu is doing’ crap. In 9 cases out of 10, C# is a better language choice for solutions in business, engineering, automation, media, data handling, etc applications; simply because you’re going to spend a fraction of dev time creating code to do the same things, if nothing else.

np stands for “non-portable”
http://www.kernel.org/doc/man-pages/online/pages/man3/pthread_setaffinity_np.3.html

I tried this function on an Intel Core2 Duo processor with two threads to run on the two cores. printf outputs tell me that all was well but the system monitor shows me that only one of the cores is being utilized. (The same application with OpenMP uses both cores). Anything i missed? Thanks

Many thanks