Offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)
I have the error message: offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)Compiler flags: icc $(SOURCES) -lOpenCL -fopenmp -O3Offload code:void...
View ArticleXeon Phi Segmentation Fault Simple Offload
I have this simple matrix multiply for offload on Phi, but I get offload error (SIGSEGV) when I run the program below:#include <stdlib.h> #include <math.h>void main() { double *a, *b,...
View ArticleIntel Phi on Centos6.5 with RHEL InfiniBand Stack
Hi, I would like to ask whether it is possible to install Intel MPSS with standard (distributed with OS) RHEL Infiniband stack. In manual...
View ArticleRebuilding MPSS-3.2 (Yocto) release from source
Dear community,I think I have managed to go some steps forward to rebuild the Intel Xeon Phi MPSS-3.2 release (with Yocto, poky, bitbake ...) to add some required features in our installation. Now I'm...
View ArticleHow to get peak performnace in FFT
Hi,I want to get peak performance using batch FFT. I am giving sample code below that i have written. I have compiled on host using command icc -mkl fftcheck.cpp -o fftchecknew...
View ArticleProminent features of the Intel® Manycore Platform Software Stack (Intel®...
The Intel® Manycore Platform Software Stack (Intel® MPSS) version 3.2 was released on March 17, 2014. This page lists the prominent features in this release.Improvements in Intel® Coprocessor Offload...
View ArticleBuyers Remorse
So I can't set up the Xeon Phi in Linux like I need it without it deleting my entire hard drive and I refuse to spend another $3000 just to be able to compile on windows. Now after spending days on the...
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Debugging Intel® Xeon Phi™ Applications on Windows* Host
ContentsIntroductionDebug Solution for Intel® MICHow to get it?Debug Solution as IntegrationComponents RequiredConfigure & TestPrerequisite for DebuggingDebugging Applications with Offload...
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Debugging Intel® Xeon Phi™ Applications on Linux* Host
ContentsIntroductionDebug Solution for Intel® MICHow to get it?Why use the provided GNU* GDB from Intel?Why is Intel providing a Command Line and Eclipse* IDE Integration?Deprecation...
View ArticleRecipe: Building and Optimizing the Hogbom Clean Benchmark for Intel® Xeon...
OverviewThis article provides a recipe for compiling and running the Hogbom Clean benchmark for the Intel® Xeon Phi™ coprocessor and discusses the various optimizations applied to the code....
View ArticleResolving Symbols for Intel® Manycore Platform System Stack (Intel® MPSS) in...
BackgroundWhenever Intel VTune Amplifier XE is unable to resolve symbols for libraries or the operating system, it lumps all the counts for that module together. Often, these lumped counts end up at...
View Articlepower monitor on cpu and mic
Dear forum,I've got a question about the energy consumption of my mic code. Here are the specs of my system:cpu code running on: i7-4700 mq 4core (haswell) on my laptop, tdp=47w, windows osmic code...
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Debugging Intel® Xeon Phi™ Applications on Linux* Host
ContentsIntroductionDebug Solution for Intel® MICHow to get it?Why use the provided GNU* GDB from Intel?Why is Intel providing a Command Line and Eclipse* IDE Integration?Deprecation...
View ArticleRecipe: Building and Optimizing the Hogbom Clean Benchmark for Intel® Xeon...
OverviewThis article provides a recipe for compiling and running the Hogbom Clean benchmark for the Intel® Xeon Phi™ coprocessor and discusses the various optimizations applied to the code....
View ArticleResolving Symbols for Intel® Manycore Platform System Stack (Intel® MPSS) in...
BackgroundWhenever Intel VTune Amplifier XE is unable to resolve symbols for libraries or the operating system, it lumps all the counts for that module together. Often, these lumped counts end up at...
View Articlepower monitor on cpu and mic
Dear forum,I've got a question about the energy consumption of my mic code. Here are the specs of my system:cpu code running on: i7-4700 mq 4core (haswell) on my laptop, tdp=47w, windows osmic code...
View Articledgetrf performance drop above 10000
Hi,I'm doing performance testing using mkl composer_xe_2013_sp1.2.144 with the icc version 14.0.2 20140120 compiler and randomly generatoed matrices.when the matrix size gets above 10000, I notice a...
View Articlemic0: lost
Hi !I begin with Xeon Phi and MPI. After a lot of troubles, yesterday I managed to run MPI programs on symmetric mode (both host and co-processor) as well as directly on mic0 after ssh.But today I have...
View ArticleSSH logins to the Phi coprocessor fail if user's shell is not bash or sh
Hello all,I'm just pointing this out because it is not documented somewhere (I think). Because the host's /etc/passwd lines are copied "as is" to the coprocessor, there is a chance that ssh logins will...
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FAQS: Compilers, Libraries, Performance, Profiling and Optimization.
In the period prior to the launch of Intel® Xeon Phi™ coprocessor, Intel collected questions from developers who had been involved in pilot testing. This document contains some of the most common...
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