How to compile Mathematica to C code with intel C++ compiler (x86) on Win7(x64)？

Question

My OS is windows 7 64bit. I installed Microsoft C++ 2008 Express edition and Intel C++ Compiler v11.1 x86 version.

Now I could successfully compile x86 C code in Mathematica, e.g.

    In[1]:= Needs["CCompilerDriver`"]
    In[2]:= greeter = CreateExecutable[StringJoin["#include <stdio.h>\n", "int main(){\n", "  printf(\"Hello world.\\n\");\n", "}\n"], "hiworld", 
     "Compiler" -> CCompilerDriver`IntelCompiler`IntelCompiler, 
     "CompilerInstallation" -> "C:\\Program Files (x86)\\Intel\\Compiler\\11.1\\072\\", 
     "CompilerName" -> Automatic, "TargetSystemID" -> "Windows"]

    Out[2]= "C:\\...\\AppData\\Roaming\\Mathematica\\\
       SystemFiles\\LibraryResources\\Windows-x86-64\\hiworld.exe"

But failed to use CompilationTarget -> "C" to compile a function like this

    In[3]:= f = Compile[{x, y}, Sqrt[x^2 + y^2], CompilationTarget -> "C"]

    During evaluation of In[3]:= LibraryFunction::libload: The function compiledFunction5 was not loaded from the file C:\\...\AppData\Roaming\Mathematica\ApplicationData\CCompilerDriver\BuildFolder\vax-5844\compiledFunction5.dll. >>
    During evaluation of In[3]:= Compile::nogen: A library could not be generated from the compiled function. >>

I guess I need to specify a default "TargetSystemID"-> "Windows" since my platform is x64, but don't know how to setting such an option in Mathematica.

Did I miss any point here?

PS: I don't want to install Microsoft Visual Studio recently.

Answer 1

In your first code block you specified the compiler that you wanted. In the second you didn't - so it might be that Mathematica does not "know" about the compilers that you have installed.

Run Needs["CCompilerDriver`"] then CCompilers[Full] to see which of your compilers Mathematica knows about. Also maybe look at the global $CCompilerDirectory.

If your Intel and/or Microsoft compilers are not showing up, then follow the Specific Compilers page of the CCompilerDriver User Guide. To get your Intel compiler working, I think maybe the following should suffice:

$CCompiler = {
 "Compiler" -> CCompilerDriver`IntelCompiler`IntelCompiler,
 "CompilerInstallation"->"C:\\Program Files (x86)\\Intel\\Compiler\\11.1\\072\\"}

That said - if I use the above code to change the directory to my compiler to something wrong, then the first error type I get (before the Compile::nogen) is CreateLibrary::instl, not the LibraryFunction::libload message that you have. Maybe something is wrong with your default build directory: $CCompilerDefaultDirectory...

In response to your PS, the Intel C++ v11.1 compiler for Windows is on the list of compilers that they have tested, so you shouldn't need to install MS Visual Studio. On the other hand, you could try GCC for Windows via MiniGW or CygWin (also see SO/187990).