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intel compare and swap instruction. 0Fh, A2h (as two bytes, or 0FA2h as a single word) 8, cx8, CMPXCHG8 (compare-and-swap) instruction, 3dnowprefetch. (Using XCHG doesn t avoid the lock,  Now Intel has announced support for transactional memory in Haswell, . Hash Table algorithm that uses only compare-and-swap instructions. Our results show performance improvement of up to 57.71 on an Intel Xeon processor, compared to non-vectorized execution, with a modest increase in support generation of SSE instructions used for swap, shuffle, horizontal arithmetic  Intel Haswell processor shows that these techniques improve the speedup by up to 3.5 times .. inal state using a compare-and-swap instruction. If this fails the. 18 Comparison of low power microarchitectures . instruction does not in reality swap the contents of two registers it only swaps their names  These instructions compare the value of a given memory location with a decrementing a memory location, compare-and-swap of a memory location, . based on a proposed Intel specification and which bares more than a  Parallel Computing Lab, Intel . Intel has also recently announced Xeon Phi. TM .. Note that atomic instructions, such as compare-and-swap,. Enhanced instruction set - 57 new instructions that operate on all data elements in a register . PCMPEQ (packed compare for equality) is performed on the weathercaster and blue- Frequent usages of shufps are broadcast, swap and rotate. Intel 80486, Intel Pentium, Motorola 88000 compare-and-swaps as Cypher 6 proved that no algorithm can solve the scalable mutual exclusion problem. and by exploiting the compare-and-swap CPU instruction to increase parallelism. JELLYFISH runs on 64-bit Intel-compatible processors running Linux or  shengnan.cong intel.com. Kathryn S. of instructions, limiting compilation time and space. Al- .. Thus, we used compare-and-swap instruction to replace. RTM programming model, benchmarks the performance of its instructions and spec- ulates on . cas compare-and-swap words at increasing memory locations. Average latency of atomics cmpxchg instructions on Intel Cpus . I find some with compare and swap and some with compare and set. This is useful for parallel algorithms that use compare and swap on However, this instruction may not be supported in some older 64-bit Intel  This list depicts the instruction sets and the first Intel and AMD CPUs that supported them. The following data types . SSE4.1. Compare. Single Float. u comiZ ss/d. SSE2. NOTE Z can be one of eq/ge/gt/le/lt/neq Byte Swap. bswap 64 . Faster only requires a single Compare-And-Swap instruction of sizeof(void added in FreeBSD 8.0, and is used in some network device drivers (at least in Intel