¡@
c++ Programming Glossary: opsHow to tame the Windows headers (useful defines)? http://stackoverflow.com/questions/1394910/how-to-tame-the-windows-headers-useful-defines NOSYSCOMMANDS SC_ NORASTEROPS Binary and Tertiary raster ops NOSHOWWINDOW SW_ OEMRESOURCE OEM Resource values NOATOM Atom..
How can I avoid including class implementation files? http://stackoverflow.com/questions/2037880/how-can-i-avoid-including-class-implementation-files Include guards work by making subsequent #includes no ops with the definitions available from the first include. Because..
How to perform atomic operations on Linux? http://stackoverflow.com/questions/2287451/how-to-perform-atomic-operations-on-linux using this http packages.debian.org source sid libatomic ops If you want simple operations such as CAS can't you just just..
Is using double faster than float? http://stackoverflow.com/questions/3426165/is-using-double-faster-than-float old MMX was integers only especially suitable for simple ops on lot of data SIMD single instruction multiple data where each..
Performance of built-in types : char vs short vs int vs. float vs. double http://stackoverflow.com/questions/5069489/performance-of-built-in-types-char-vs-short-vs-int-vs-float-vs-double division low complexity integer add popcount hcf boolean ops shifts high demand low complexity operations will be fast on..
Why would I prefer using vector to deque http://stackoverflow.com/questions/5345152/why-would-i-prefer-using-vector-to-deque . In addition since there is some extra bookkeeping other ops are probably slightly more expensive than their equivalent vector..
Is short-circuiting boolean operators mandated in C/C++? And evaluation order? http://stackoverflow.com/questions/628526/is-short-circuiting-boolean-operators-mandated-in-c-c-and-evaluation-order please point out where in the standard it's said logic ops are always short circuited I'm mostly interested on C an answer..
Interview Question: Optimal Solution to the problem of finding Heavy integers http://stackoverflow.com/questions/7136590/interview-question-optimal-solution-to-the-problem-of-finding-heavy-integers
Memory model ordering and visibility? http://stackoverflow.com/questions/7461484/memory-model-ordering-and-visibility Consequently standalone acquire and release fences are no ops but atomic_thread_fence memory_order_seq_cst is not again requiring..
Fast multiplication/division by 2 for floats and doubles (C/C++) http://stackoverflow.com/questions/7720668/fast-multiplication-division-by-2-for-floats-and-doubles-c-c for VC11 is now it always vectorizes floating point loops effectively forcing arch SSE2 though VC10 even with arch SSE2.. won't see these kinds of speedups converting i.e. matrix ops to SSE or int hacks since this is the worst case loading into..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle contain 2 double 's the throughput can be as much as 2 flops per cycle. Furthermore it seems although I've not seen any proper.. in parallel giving a theoretical max throughput of 4 flops per cycle. However I've not been able to replicate that performance.. c c programme. My best attempt resulted in about 2.7 flops cycle. If anyone can contribute a simple c c or assembler programme..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle 48 1000 iterations tds 2 cout Seconds secs endl cout FP Ops ops endl cout FLOPs ops secs endl double out 0 int c 0 while.. with Visual Studio 2010 SP1 x64 Release Seconds 55.5104 FP Ops 960000000000 FLOPs 1.7294e 010 sum 2.22652 The machine is a.. with Visual Studio 2010 SP1 x64 Release Seconds 117.202 FP Ops 7680000000000 FLOPs 6.55279e 010 sum 17.8122 Theoretical SSE..
|