- Intel Instruction Set Architecture Extensions
- Intel® Architecture Instruction Set Extensions Programming Reference includes:
- Intel® Advanced Vector Extensions 512 (Intel® AVX-512) instructions (AVX512F, AVX512DQ, AVX512BW, AVX512VL, AVX512CD, AVX512PF, AVX512ER)
- Intel® Secure Hash Algorithm (Intel® SHA) extensions
- Intel® Memory Protection Extensions (Intel® MPX)
It seems that there is a small typo in the Intel® 64 and IA-32 Architectures Software Developer’s Manual (Order Number: 253665-054US April 2015), page 3-149 (cmpss instruction) :
128-bit Legacy SSE version: The first source and destination operand (first operand) is an XMM register. The second source operand (second operand) can be an XMM register or 64-bit memory location.
It should be 32-bit memory location.
hello, I have a difficult problem,.scenes are as follows:
the hardware env is Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz, a Altera FPGA board.
the os is Linux debian-rss 3.16.7-ckt7
FPGA create 32 DMA transfer to cpu, generate a interrupt per transfer.
This 32 interrput distribution to 8 diffirent msix IRQ.
According to APIC spec, each interrupt maybe one in ISR, one in IRR,the third maybe dropped.
But now i distribution 2 interrputs to each IRQ, why maybe dropped interrputs?
In this article, we introduce an easy optimization methodology that includes Intel® Cilk™ Plus and Intel® C++ Compiler based on the performance analysis using Intel® VTune amplifier. Intel® System Studio 2015 that containes the mentioned components was used for this article.
I am trying to achieve a dynamic shift. Well, let me explain the task. I process data with SSE, AVX. Data gets loaded, worked with and later results are stored. To support arbitrary lengths, I need some kind of maskload, but also for SSE.
Suppose my lenght is 9 elements, I work with int32 and SSE. First load, second load is fine. Third load is fine from memory bound, this is no problem. But only element 0 in vector register is valid, others need to be zero. How do I achieve this best?
Java1, 2 is a programming language used for developing applications that can run on any operating system (OS). To do that, Java applications need to be compiled to bytecode.3 This bytecode can then be run on any Java Virtual Machine (JVM)4 without recompiling. To run Java applications on OSs like Windows* and Linux*, a Java Runtime Environment (JRE)7 must be installed.
I've been looking at a variety of things with SGX, and while looking into the EGETKEY description, I think I've found an inconsistency in the October 2014 spec. Specifically:
As the description of "IIR Gaussian Blur Filter Implementation using Intel® Advanced Vector Extensions",
The AVX should be faster than SSE,But, my result of performance measurement as following:
The computer supports AVX
number CPU in the system = 4
IIR Gaussian Filter Coefficients are:
a0 = 0.021175, a1 = -0.017807, a2 = 0.021103, a3 = -0.017875, b1 = -1.837578, b2
= 0.844174, cprev = 0.510583, cnext = 0.489409
image width = 1024, height = 1024
Running multi threaded SSE code
Running multi threaded AVX code
I'm testing a custom implementation of strcmp() which involves SSE4.2 and this instruction in particular:
I've made a test that passes unaligned pointers to the custom strcmp(), the test looks like this:
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