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OpenCL SDK installation failed to recognize MPSS
Hi,After I downloaded the Intel MPSS 3.1 fromhttp://registrationcenter.intel.com/irc_nas/3574/mpss-3.1-windows.zipand installed the two following msi filesIntel(R) Xeon Phi(TM) coprocessor...
View ArticlePinning and unpinning of memory during offload_transfer
I am assuming that DMA is used transfer data into and out of mic devices if the transfer is asynchronous. If that is correct, the memory needs to be pinned before the transfer. What protocol is used...
View ArticleSlow down on host
Hey,Has anyone experienced in slowdown of execution on the host due to offloading using LEO or COI? I know there is an entry of a known issue in the MPSS changelog where remote process creation causes...
View ArticleProblems with Xeon Phi data transfers
Hello everyone,I am new to Xeon Phi coproccessors and I am now trying to adapt a program previously made for only CPU to offload to the Xeon Phi. While doing this I have found some strange results with...
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User Controlled Power Management
Hi everyone,I need to perform fine-precision performance measurements on MIC and experience considerable variance due to DVFS.I was tracking the frequency and voltage using 'micinfo' tool with 1 second...
View ArticleRequest data from the host
Hallo,I don't have much experience with the Xeon Phi yet. I am trying to convert a program to use it with a Xeon Phi. The programm processes lots of data file by file. Originally it was parallelized...
View ArticleCreating Windows DLLs containing MIC offload code
Hello Everyone,I am trying to build a Windows DLL that contains code that does offload to MIC. I managed to compile the DLL (and I see that in my output directory a file called <dll-name>MIC.out...
View Article*MIC* unknown attribute "__leaf__"
The following simple program [cpp]#include<cmath> #define ACCURACY 1e-9#define MAX_ITER 50#ifndef M_PI#define M_PI 3.14159265358979323846#endif namespace hpc_astrodynamics { inline double...
View Articlevectorization support: reference x has unaligned access
The following code #include <sys/time.h> #include<iostream> #include<omp.h> #include <stdlib.h> /* srand, rand */ #include <malloc.h> int main () { const unsigned...
View ArticleCaches in Clovertown are inclusive or exclusive?
Hello,I am researching on multi-core scheduling algorithms, and need some information about Intel Xeon 5310 (Clovertown) processor. As you know, Clovertown is a two-package quad-core processor. Each...
View ArticleMIC fused multiply add version - FMA3?
Hey guys,simple question. Does the PHI has FMA3?if yes:do i need to be aware of the FMA3 destructive operand form using FMA with Intel Intrinsics like: __m512 _mm512_fmadd_ps (__m512 a, __m512 b,...
View ArticleNative MIC compile error: undefined reference
Hey all,i'm currently trying to compile the following native Intel Intrinsics code. for ( std::size_t k = 0; k < n; k += 16 ) { x_ = _mm512_load_ps( x + k ); u_ = _mm512_load_ps( u...
View ArticleProblem using MKL random number generation in offloaded code
I am trying to create a separate random number generator for each thread in a parallel section of code..The following is a simple toy example of what is desired. However it does not work. include...
View ArticleHow to get ICC to generate assembly code together with C code for MIC?
I need to determine the assembly code correspondence of C code written for MIC.For GCC, I have found the solution at this link: http://www.delorie.com/djgpp/v2faq/faq8_20.html gcc -c -g -Wa,-a,-ad...
View ArticleBuild Native Libraries on windows
Hi, I am trying to build a library (static and shared) for the MIC on windows. I have compiled my src using the /Qmic flag but now I don't get how to generate a library. For example I compile a src...
View Articletarget map vs. target update (Fortran)
I've resumed experimenting on how these 2 methods of copying data to and from MIC differ, using ifort 14.0.1 linux.!$omp target update appears to work correctly in all my examples, with one...
View ArticleFollow the following steps to convert GY-HM650 MXF to Final Cut Pro
[url=http://www.aunsoft.com/mxf_converter_reviews/][img]http://www.aunsoft.co...The lightweight new ProHD camera GY HM650 records HD or SD footage in multiple file formats, including native XDCAM EX™...
View ArticleReturn pointer from MIC malloc
In my project, I need to pass pointer among different offload functions. However, I do not want to use global variables. For example. I want to allocate an array on accelerator in new_array function,...
View ArticleInvitation to evaluate Intel® MKL Sparse Matrix Vector Multiply Format...
We are seeking interested parties to evaluate Intel® MKL SpMV Format Prototype Package for Intel® Xeon Phi™ coprocessors. Sparse Matrix Vector Multiply (SpMV) is an important operation in many...
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