c++ Programming Glossary: intelDetecting endianness programmatically in a C++ program http://stackoverflow.com/questions/1001307/detecting-endianness-programmatically-in-a-c-program I need to be able to write code that will execute on an Intel or PPC system and use exactly the same code i.e. no conditional..
Why is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array generate conditional moves for this branch even under Ox . Intel Compiler 11 does something miraculous. It interchanges the two.. the test loop to defeat the benchmark... If you give the Intel Compiler the branchless code it just out right vectorizes it.....
Visual Studio support for new C / C++ standards? http://stackoverflow.com/questions/146381/visual-studio-support-for-new-c-c-standards extremely painful. A workaround exists though Note that Intel is much more enlightened on this. the Intel C compiler can handle.. Note that Intel is much more enlightened on this. the Intel C compiler can handle C99 code and even has the same flags as.. it much easier to port code between platforms. Also the Intel compiler works in visual studio. So by scrapping MS COMPILER..
What is the difference between an int and a long in C++? http://stackoverflow.com/questions/271076/what-is-the-difference-between-an-int-and-a-long-in-c an int was 32 bits. This article covers the rules for the Intel C compiler on variable platforms. To summarize OS arch size.. To summarize OS arch size Windows IA 32 4 bytes Windows Intel 64 4 bytes Windows IA 64 4 bytes Linux IA 32 4 bytes Linux Intel.. 64 4 bytes Windows IA 64 4 bytes Linux IA 32 4 bytes Linux Intel 64 8 bytes Linux IA 64 8 bytes Mac OS X IA 32 4 bytes Mac OS..
Which, if any, C++ compilers do tail-recursion optimization? http://stackoverflow.com/questions/34125/which-if-any-c-compilers-do-tail-recursion-optimization well and even for mutually recursive calls. I bet the Intel compiler does too. Letting the compiler do the optimization..
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation such parallel execution. For a couple of examples the Intel Itanium and VLIW processors such as some DSPs allow a compiler..
What's the best Free C++ Profiler for Windows? http://stackoverflow.com/questions/67554/whats-the-best-free-c-profiler-for-windows and found it very good but it's not free. I know the Intel v Tune but it's not free either. c windows profile share..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle double precision per cycle be achieved on a modern x86 64 Intel cpu As far as I understand it take 3 cycles for an sse add and.. and 5 cycles for a mul to complete on most of the modern Intel cpu's see e.g. Agner Fog's 'Instruction Tables' . Due to pipelining.. . a.out 1000 produces the following output on an Intel Core i5 750 2.66 GHz addmul 0.270 s 3.707 Gflops res 1.326463..
Why is one loop so much slower than two loops? http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops with full optimization and SSE2 enabled for 32 bit on a Intel Core 2 Duo x64 the first example takes 5.5 seconds and the double.. in each loop will fall on the same cache way. However Intel processors have had 8 way L1 cache associativity for a while... EDIT Results on an actual Core 2 architecture machine 2 x Intel Xeon X5482 Harpertown @ 3.2 GHz #define ALLOCATE_SEPERATE #define..
http://stackoverflow.com/questions/12135518/is-faster-than Example Edited for brevity Compiled with gcc m32 S masm intel test.c if a b Do something 1 Compiles to mov eax DWORD PTR esp..
Performance degradation due to default initialisation of elements in standard containers http://stackoverflow.com/questions/15952412/performance-degradation-due-to-default-initialisation-of-elements-in-standard-co and a equivalent cheating method using my macbook's intel i7 chip with 4 cores 8 hyperthreads timing std vector vector..
templates problem ('typename' as not template function parameter) http://stackoverflow.com/questions/1600464/templates-problem-typename-as-not-template-function-parameter Actually I've a problem with compiling some library with intel compiler. This same library has been compiled properly with.. .. Compilation this kind of code produce following errors intel gcc doesn't claim I've got following errors .. .. .. libs log..
http://stackoverflow.com/questions/1783822/format-of-for-loops as I can see. I compiled the two variations with g on for intel processors without any fancy optimizations and the results are..
C++ OpenMP Parallel For Loop - Alternatives to std::vector [closed] http://stackoverflow.com/questions/18669296/c-openmp-parallel-for-loop-alternatives-to-stdvector If you need thread safe reallocation then the library intel thread building block offers you concurrent vector containers..
How do I force a particular instance of a C++ template to instantiate? http://stackoverflow.com/questions/2152002/how-do-i-force-a-particular-instance-of-a-c-template-to-instantiate the library for several versions of MSC and GCC and intel compilers. c templates instantiation share improve this question..
Programmatically create static arrays at compile time in C++ http://stackoverflow.com/questions/2978259/programmatically-create-static-arrays-at-compile-time-in-c needs a little work to get it compiling on msvc and intel compilers but nonetheless a very interesting approach to the..
Is using double faster than float? http://stackoverflow.com/questions/3426165/is-using-double-faster-than-float answer change for 64 bit architectures c osx snow leopard intel share improve this question There isn't a single intel CPU.. intel share improve this question There isn't a single intel CPU especially in terms of what operations are optimized with..
Best compiler warning level for C/C++ compilers? http://stackoverflow.com/questions/399850/best-compiler-warning-level-for-c-c-compilers different compilers such as Sun CC aCC HPUX Visual Studio intel Edit I just wanted to point out that I don't use Werror but..
Atomicity in C++ : Myth or Reality http://stackoverflow.com/questions/5002046/atomicity-in-c-myth-or-reality Software Developer 䏭 Manual Volume 3A http www.intel.com Assets PDF manual 253668.pdf section 8.1.1 8.1.1 Guaranteed.. Core2. Not all unaligned operations will be atomic. Other intel manual recommends this white paper http software.intel.com en.. intel manual recommends this white paper http software.intel.com en us articles developing multithreaded applications a platform..
how to compile ASL (boost based Adobe C++ gui library) on windows 7? http://stackoverflow.com/questions/6397501/how-to-compile-asl-boost-based-adobe-c-gui-library-on-windows-7 the job. download and install boost libraries version 1.45 intel tbb libraries last version apl and asl last versions compile.. put contents of archive_file boost_1_45_0 here intel_tbb_libraries platform_release put contents of apl archive here..
SSE intrinsic functions reference [closed] http://stackoverflow.com/questions/7156908/sse-intrinsic-functions-reference equally useful for SSE programming. Go to http software.intel.com en us articles intel intrinsics guide and then select the.. programming. Go to http software.intel.com en us articles intel intrinsics guide and then select the Intel Intrinsics Guide..
Fast Cross-Platform C/C++ Image Processing Libraries http://stackoverflow.com/questions/796364/fast-cross-platform-c-c-image-processing-libraries
http://stackoverflow.com/questions/8325566/openmp-and-cpu-affinity performance tuning settings in results too. E.g. For intel compiler the variable is export KMP_AFFINITY compact 0 For sun..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle at the assembler code with g S O2 march native masm intel addmul.cpp the main loop seems kind of optimal to me .L4 inc..
How to use Intel C++ Compiler with CUDA nvcc? http://stackoverflow.com/questions/9433722/how-to-use-intel-c-compiler-with-cuda-nvcc uses Intel's C Compiler icl.exe . c visual studio cuda intel nvcc share improve this question Unfortunately you cannot.. studio. Unless something has changed and they now support intel's compilers i wouldn't suggest using them http forums.nvidia.com..
What could cause a deterministic process to generate floating point errors http://stackoverflow.com/questions/968435/what-could-cause-a-deterministic-process-to-generate-floating-point-errors that have been applied to the code. I'm using the intel C compiler and have turned floating point speculation to fast.. running on an Intel quadcore processor. c floating point intel deterministic share improve this question In almost any..
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