Intel ISA Extensions

Resources about Intel® Transactional Synchronization Extensions (Intel TSX)

Hi,

you might find this collection of technical material about Intel TSX instructions useful: http://www.intel.com/software/tsx

By a suggestion from some senior forum contributors I am making this post sticky.

Best regards,

Roman

Links to instruction documentation

pin-2.14-71313 and WinSock library

Hi,
I have a problem trying to start my pintool built with WinSock library (ws2_32.lib) - it immediately exits with message "Failure to open DLL file WS2_32.dll".
I've prepared a simple pintool to illistrate the problem:

//----------------------------------------------------------
#include "pin.H"

namespace WINDOWS
{
#include <Ws2tcpip.h>
void *p = WSAStartup;
};

int main(int argc, char *argv[])
{
if (PIN_Init(argc, argv)) return 1;
PIN_StartProgram();
return 0;
}

Intel 64 documentation bug

This is for Intel 64 and IA-32 Architectures Software Developer’s Manual, Order Number: 325462-053
US January 2015. Page Vol. 1 5-29.

5.19 64-BIT MODE INSTRUCTIONS
...
MOVZX (64-bits) Move doubleword to quadword, zero-extension

In fact 32 to 64 bit zero extension isn't supported as per Vol. 2A 3-583. It is only spec'd for r/m8 and r/m16.
There is a small chance that I'm misinterpreting that but then so is NASM which disallows this.
Somebody's wrong and so I'd like an official ruling.

How to work with AVX on windows

Hi,

I am interested in AVX instructions set using in my application for speed up.But i am new to AVX.

How can i know whether my system processor is able to support AVX or not?

My System Configurations as

OS; Windows 7 with 64-bit

CPU: Inter(R) Xeon(R) CPU  W3505 @2.53GHz.

Anybody can help me..

Thanks in Advance.

 

Is profiling information running on SDE accurate and trustable?

Hi,

         I am trying to look at AVX 512 performance, currently, I wrote a simple function for evaluation as below, I configured the optimization and enabled AVX-512 etc in the project properties setting(vs2013 integrated with Intel-parallel-studio ), and I see the AVX-512 instructions are used from the asm files generated by compiler.

void complexVectorConjMpy(float *inputPtr1, float *inputPtr2, float *outputPtr, int numData)
{
    int idxData;
    float data1Re, data1Im, data2Re, data2Im;

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