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Accelerating ANSYS* Mechanical Structural Analysis with Intel® Xeon Phi™...
AbstractIn 2013, using an updated Intel® Math Kernel Library (Intel® MKL), ANSYS added Intel® Xeon Phi™ coprocessor support with automatic offload (AO) to their ANSYS Mechanical software. The result...
View ArticleIssues for MPI library startup
hello I am running a MPI program which involves 5 ranks communicating with each other. The program runs fine when i run it on Xeon platform but when i put one of the process rank on MIC the program...
View Articlemm512 random number generator intrinsics?
Hey all, I have read in the FAQS that MKL has a random number generator included in the vector libraries.Are there intrinsics for generating vector random numbers? or a small kernels that I could...
View ArticleProblem with running program on mic
Hello,I trying a run a simple file-open program on mic0 but the program fails (does not open file but terminates gracefully!) when i run it from the host machine and succeeds (program opens the file on...
View ArticleMPI startup fail
hello I am running a MPI program which involves 5 ranks communicating with each other. The program runs fine when i run it on Xeon platform but when i put one of the process rank on MIC the program...
View ArticleCompilation shared libraries problem
Hello everyone,could someone help me with this issue? I try to compile some OpenMP code, but still wrote this for offload and native compilation:bar0088@argexpr2:~/Workspace> icc -openmp vec_add.c...
View Articleeffect of using array alignment
Hi,I am trying to figure out the effect of using array alignment in vectorization of MIC code.Here is a simple piece of offload code from Intel #pragma offload target(mic:cardId) #pragma omp parallel...
View ArticleProblem linking when offloading STL
We have some offload code that doesn't run because dlopen() fails with undefined symbols. One of the suggestions that I found was to add "-Wl,-zdefs" to the offload linker options, which might bring...
View ArticleXeon Phi Register Manual
Hi,We are planning to get the Xeon Phi working in our research environment which is a non-linux / non-windows operating system. Therefore we need to write our own drivers and our driver model is quite...
View ArticleIntel(R) MPSS 3.2 released!
Intel(R) MPSS 3.2 is now available. See http://software.intel.com/en-us/articles/intel-manycore-platform-software-stack-mpssA summary of the most notable features and changes:Coprocessor user...
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difference between omp target and native mode
Now that OpenMP 4 is fairly well supported on the Fortran side (except for simd reduction), I've been able to set up an example which can run in host, MIC native, and offload mode, simply by changing...
View Articlepage table
I am curious to know how is page tables are implemented in MIC as well as on Xeon architecture or these are completely OS depend.Is there a single page table which is accessed by all the cores or each...
View ArticleReference for C++11 support in offloaded code
Is there a reference someplace which documents what features of C++11 are supported in offloaded code? It appears to me that std::thread::yield and std::map::emplace are not supported, but it would be...
View ArticlePoor performance gain when no-vec, no-sim // Vtune and libiomp5.so
Hello everybody,After three long days, I come here in search of help.Context: I am running a N-body code written in Fortran, using OMP directives (the only one used is a $omp parallel directive). I am...
View ArticleAutomatic fan speed with passive Xeon Phi
At this point, are there any means within the OS to make the system fan spin faster when the temperature of a passively cooled Xeon Phi increases to dangerous levels?
View ArticleEnergy Measurement on MIC Xeon Phi
Hi Here is my way of measuring the total power consumption on Xeon Phi. But the performance result seems not to be so reasonable. I use "Total power, win 0 uW" as the parameter for measurements. The...
View ArticlePipe micsmc output to a c++ app without writing to console
Hello,I'm interested in doing some power analysis on the Xeon Phi and I'm trying to pipe the output of the micsmc tool into a c++ application. I have a bash script which calls micsmc -f periodically...
View ArticleWRF Conus2.5km on Intel® Xeon Phi™ Coprocessors and Intel® Xeon® processors...
OverviewThis document demonstrates the best methods to obtain, build and run the WRF model on multiple nodes in symmetric mode on Intel® Xeon Phi™ Coprocessors and Intel® Xeon processors. This document...
View ArticleOffloading virtual functions?
Hi,Can we offload virtual functions. I am trying to do that using the following code and I am getting seg fault.#include using namespace std;class Polygon { public:#pragma offload_attribute(push,...
View Articleabout RAPL PAPI event
Is RAPL event PACKAGE_ENERGY:PACKAGE0 including DRAM_ENERGY:PACKAGE0 and PP0_ENERGY:PACKAGE0? Or the total system energy should add the three events joules together? PACKAGE_ENERGY:PACKAGE0...
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